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13 March 2019

Stockholm Blog #10: The Moment of Truth

In January 2019 IESE researchers visited Stockholm to discuss with partners the economic evaluation of the measures implemented. The partners were also able to have a chat with KTH researchers about the technical evaluation. After this meeting the general feeling was that it is possible to evaluate the measures technically, economically and socially with the available data. IESE researchers also discussed the upscaling of measures and their replicability, which are an important part of this project. In this blog I will elaborate a little bit on the evaluation of measures in work packages 2 and 3 where evaluation data is available.

Action area 1: Low-Energy Districts

What is happening in Valla Torg, Årsta and the Slakthus area buildings, what results do we have and what can be scaled-up?

In Valla Torg the refurbishment and implementation of energy efficient measures of the final two multi-storey buildings (2A and 3B) and the low-storey building 5E are finalised. Tenants have moved in to buildings 2A and 5 E and will move in to building 3B in March. The reductions in energy use based on the evaluation this far was as follows:

BUILDING 6F Area size Energy purchased Energy produced locally Energy use
Before refurbishment 4942 m² 650 510 kWh   132 kWh/m²
After refurbishment 5191 m² 193 162 kWh 4 276 kWh (new photovoltaics installed) 38 kWh/m²
Total energy use reduction 94 kWh/m2 or 72%

In Building 6F the total reduction in consumed energy was thus 94 kWh/m2 thus 72%.

BUILDING 7G Area size Energy purchased Energy produced locally Energy use
Before refurbishment 4571 m² 568 136 kWh   124 kWh/m²
After refurbishment 4626 m² 370 578 kWh 11 493 kWh (new photovoltaics installed) 83 kWh/m²
Total energy use reduction 44 kWh/m2 or 36%

In Building 7G the total reduction in consumed energy was 44 kWh/m2 (36%). These figures are lower than expected, but they are largely due to the fact that the exhaust air heat pumps were not functioning before December 2018. The estimation for 2019 with fully functioning heat pumps is a reduction of 64% in consumed energy.

BUILDING 8H Area size Energy purchased Energy produced locally Energy use
Before refurbishment 5401,5 m² 688 049 kWh   127 kWh/m²
After refurbishment 5651 m² 415 170 kWh 3087 kWh (new photovoltaics installed) 74 kWh/m²
Total energy use reduction 53 kWh/m2 or 42%

In Building 8H the total reduction in consumed energy was thus 53 kWh/m2 (42%). These figures were also lower than expected, but they were also largely due to the fact that the exhaust air heat pumps were not functioning before the end of November 2018. The estimation for 2019 with fully functioning heat pumps is a reduction of 66% in consumed energy.

If the estimated values for buildings 7G and 8 H are reached the average energy use per squaremeter in the first three evaluated buildings is 42 kWh/m2.  These are very promising results, considering that the original building is from 1961 and that the requirement for new-built buildings in Stockholm is 55 kWh/m2.

As the results indicate, the technical solutions are indeed able to reduce the energy use in an old residential building by more than 70%, but it is economically feasible? We do not yet have the economic figures, so unfortunately it is too early to define if the refurbishment is economically feasible or not. I should be able to answer this in the next blog in May. There are other issues to consider. One of these issues is the u-value of the windows. The windows chosen in the project have a very low u-value of 0,7. In our northern climate this low u-value has meant that during special weather conditions more than half of the window has had frost on the outside. The frost indicate that heat is not leaking out the window, but for the tenant it is inconvenient when they cannot look out the window.

In the private condominia Brf Årstakrönet the evaluation is on its second year. Compared to the 2015 baseline, the savings in 2018 was around -11% for district heating -13% for electricity (not including electricity used in apartments) and -3% for water.

In Slakthus-area the refurbishment of building 8 is finalised. Compared to the 2017 baseline, the savings in 2018 were 49% for district heating. The baseline for electricity in 2017 is not comparable with the 2018 use as the function of the building has changed becoming amusic club which resulted in an  increased use of electricity of 300% .

The substitute building Kylhuset in Slakthus-area is also finalised for building related energy efficiency measures. Compared to the 2017 baseline, the savings in 2018 were 19% for district heating and 10% for building electricity. The production of electricity from photovoltaics is not available yet 2018, nor the recovery of waste heat from the datacentre. These do not affect the above figures, but they do affect the saving in total CO2-emissions.

Action area 2: Integrated Infrastructures

Installing smart LED-lighting

The smart LED-street lights (solution 5) have now been in operation for more than two years and the system works well. There are three sub-measures implemented and evaluated. I presented the results in my previous blog post but in summary the savings are between 14 and 46% depending on the sub-measure. The economic evaluation is not yet available, but in my next blog I will be able to talk more about the economic feasibility of this measure.  

A Smart, Connected City

The aim of the measure 5.2 is to implement in the city environment, if possible on existing infrastructure, sensors for data collection, analysis, visualization.  

Two types of sensors have been implemented in the Slakthus-area and have been operating for one year. The 10 sensors for measuring vehicle traffic on a real-time base have been functioning well and have provided accurate data. Some of the sensors were installed in existing infrastructure (a bridge, existing road signs), whereas others were installed on poles specifically set up for that purpose, as neither the traffic or light poles could bear their weight. As it is costly to install the poles, bring electricity and connectivity to them, it is important that the sensors can operate for a long period of time. Therefore we are currently working on extending the measurement time beyond the project time.

The wifi-nodes were installed in buildings owned by the city and could use the existing connectivity (broadband) there. No additional cabling for electricity was needed as the wifi-nodes were connected with power over Ethernet (PoE). Theywere supposed to detect passing people in a very accurate way, but in reality did not do so. The issues were the sensitivity of the sensors, that regularly stopped working and the connection to people’s mobile device which was too long (between 20 seconds and 3 minutes) to determine if people were pedestrians, cyclers, or passing in a car.

We are currently going through all wifi-nodes not providing data to re-start and/or replace them. We also add new wifi-nodes to provide additional data. And as a third step IBM is installing multisensors to gather additional data about pedestrians and bicyclists in the Slakthusarea, as part of M8.1.

The data from the sensors are analysed and visualised in the IOT platform provided by IBM. In the platform we have information about all sensors as well as a map (see below).

IBM, who is responsible for the open consolidated big data platform (solution 8), has built up a multi-use data platform where real-time data can be analysed, but also were the data can be turned into practical usecases on reducing transport emissions and increasing the quality of life for citizens. Data flows from the sensor vendors’ systems via two separate entry points. The data is then immediately stored in the data lake for later processing but also fed online via the IBM Event Streams system for online processing, e.g. real time counting of unique visitors, or passages through the system.

Data_flows_in_platform_white.png" alt="" width="581" height="258" />

Implementation of a Big Data platform often impose a higher start-up cost for the first use case. Adding additional cases or increasing the usage of the same use case can lower the cost per unit of use case. This effect is basically a result of services or labour costs. The IT related platform cost (IBM Cloud) is consumption based and will have a low cost for the low volumes also at the start.

The Measure is economically sustainable when we assume that the foundation would be used for more cases or at a larger scale. The Measure is installed in a limited geographical  area with few sensors connected which  makes the relative cost per sensor higher.

Waste Heat recovery

Fortum’s open district heating (solution 6) system has two sub measures. The first sub measure is “waste heat recovery from data centers”. The data center is now having a load of 0,54 MW heat and will annually generate approx. 4,7 GWh (based on 8760 hours of operation/year) of heat. The heat reuse of the data center is expected to increase gradually to a level of approximately 1MW heat, a heat recovery that is sufficient to heat more than 1,000 apartments while reducing annual CO2 emissions in Stockholm. From the technical perspective, the main innovative solution applied to the data center is the heat pump model used, which is the first of its kind in Sweden. The heat pump is able to produce hot water at a temperature of 85oC instead of around 68oC. This is an advantage since a higher delivery temperature allows for more running hours in the district heating system, also during cold days when district heating customer SLA requires temperatures above 68C.  

This measure has been economical feasible for both the district heating company Stockholm Exergi and the supplier. For Stockholm Exergi the recovered heat has been cost efficient compared to other production units. For a large-scale implementation of heat recovery into the district heating network Stockholm Exergi gains in other aspect such as avoiding peak production capacity investments and reducing operation and maintenance costs thanks to third party ownership of the production asset. For the data center, heat recovery generates a revenue stream from the waste heat that otherwise would be costly to get rid of. Since the datacenter had expansion plans there was an investment need in more cooling capacity. Instead of another conventional cooling machine, this heat pump solution with heat recovery was chosen. If you compare these two options this measure shows economical gains for the supplier compared to conventional data center cooling. Pay-back for the supplier will be within 5 years time but the economical values will remain over the total technical lifetime of approximately 15-25 years.

The second sub measure is “waste heat recovery from fridges and freezers in supermarkets”. The studied supermarket had a heat recovery potential of up to 30 kW which would approx. generate 219 MWh annually. As long as the measure was in operation, during January to August 2017, the running time was over 99%, way higher than the initial aim of 50%.

The conclusions regarding the sustainability of this measure shows that implementing heat recovery will contribute to decreasing the use of fossil fuels and carbon emissions independently of the electricity mix used when calculating the footprint.

The economic feasibility of this measure could not be adequately evaluated due to the lack of data caused by the limited time of operation.  The pay-back period for the supplier is estimated to be within 10 years’ time but the generation of economical value would continue over the equipment’s total technical lifetime of approximately 15-25 years.

Smart waste handling

The waste handling system provided by Envac has been running since summer 2017. This solution demonstrates a smart waste solution for residential areas using differently coloured bags for different sorts of waste, transporting the bags long distance underground and sorting them automatically in a treatment plant. There are currently six inlets in operation in the installation due to the general time plan of the refurbishment of the Valla torg site. When the automated waste collecting system is in full operation there will be 13 inlets, thus increasing the amount of waste significantly, in turn making the evaluation more relevant.

There is no data available for the sorting rate prior to the installation of the automated waste collecting system, so the sorting rate is compared to reference values from the Optibag sorting facility in the city of Eskilstuna, see table 1. Notably the residents in Årsta sort their waste better the residents of Eskilstuna. There is less rest fraction and more of organic fraction and paper packaging, even though there is slightly less plastic packaging. This is a good sign, since there were no sorting of organic waste prior to the installation of the AWCS in Årsta.

Fraction Årsta 181122-181212 Eskilstuna reference values (source : Envac Optibag AB)
Rest fraction 41% 52%
Organic fraction 41% 34%
Plastic packaging 6% 8%
Paper packaging 13% 7%

The organic fraction can be used for biogas production, which in turn can be used in vehicles. So it is very promising that this fraction per quantity is the largest.

A normal consequence of the installation of an AWCS from Envac is a substantial reduction of waste truck traffic in the area. This is also the result for the Growsmarter installation in Årsta/Valla Torg.  The traffic in the area is reduced by 90%.With the available information the measure seems to be financially sustainable, if the present revenues are maintained along the life time of the asset.

As the evaluation of measures in workpackages 2 and 3 shows, we do have some interesting results and measures which have a great potential for replication both in Stockholm and in other European cities. We will return to WP4 measures as well as WP2 economic evaluation in the next blog when I have this data available.

With this I wish you a pleasant and sunny spring.

 

Mika Hakosalo

Site Manager, Stockholm

For the previous blog post, click here

29 June 2018

Cologne Blog #9: Making the smart city available - Smart home systems and Open Urban platforms

Our smart district is producing a lot of information. Our “SmartHome GrowSmarter” research study for example will look at the feedback that the volunteer tenants will give from the use of Smart systems in their energetically renovated houses. Open Urban Platforms such as the one developed in GrowSmarter, including our Urban cockpit, is becoming a reference for smart cities. 

 

Action Area 2 - Low Energy Districts: SmartHome Systems in the Stegerwaldsiedlung

RheinEnergie found a manufacturer (homee) who is going to equip the Smart Home system with an interface that enables AGT to collect and measure the required data. The aim of the study is to investigate the impact of Smart Home systems on users' quality of life and potential energy savings.

Every tenant who lives in one of the 16 energetically renovated houses can apply to participate in the “SmartHome GrowSmarter” research study. RheinEnergie offers to install up to 50 free systems. Participants will receive a SmartHome system worth approx. 1.000€ (including installation) which they can keep after the end of the study.participants must agree to share their experiences in surveys which will be sent out at least quarterly.  The data will be evaluated anonymously and confidentially by the technical university of Cologne (TH Köln).

With the SmartHome system provided, tenants have an open system that can combine different radio protocols and components from many different manufacturers to set up individual SmartHome systems. The research study decided to use the radio protocol Z-Wave. The tenants received the homee base cube, the Z-Wave radio cube and various matching components, such as the smart heating thermostat, window and door sensors and smart plugs to measure the electricity consumption. The base cube collects information, processes it and stores it locally. It acts as the central control over the smart components. A Wi-Fi connection allows the control of the connected devices via smartphone or PC. To connect more sensors or actors you can add more cubes to the brain cube which support other Smart Home radio protocols like Z-Wave, Zigbee or EnOcean.

The Smart Home system allows a comfortable control of lights, heating, etc. via Smartphone from any room. You can, for example, check that all windows are closed while being away from home.

At both informational events on March 24th 2018 and on May 17th 2018, the project partners RheinEnergie (with the TH Köln) and AGT had a display wall to explain the system and the extra components to the tenants and show them its advantages.

management_system.png" height="300px" />Photo: The home base cube (white) and the Z-Wave radio protocol cube (purple) and demonstration wall

Action Area 3 - Integrated Infrastructure: Open urban Platforms as key component for integrated SmartCity infrastructures

The European Innovation Partnership for Smart Cities and Communities (EIP-SCC) exists since 2013 and now has more than 5,000 affiliates in over 31 countries. The EIP-SCC discusses central questions of the Smart Spatial Development. A central finding of the Cluster “Integrated Infrastructures & Processes”[1] is the need for open urban platforms prerequisite for the rapid implementation of intelligent solutions in the cities that can be used by the various actors in a city. The first step in this direction has been made by the Urban Platforms initiative, which comprises three areas: the demand side, which is mainly represented by cities, the supplier side, and the standardization.

With a Memorandum of Understanding (MoU) “Towards Open Urban Platforms for Smart Cities and Communities”, the initiative aims to provide broad support from the industry for the implementation of open solutions. Currently, 44 companies from the industry have signed the memorandum. On the demand side, a declaration of intent has been signed by the 24 cities and two city networks, which will help to develop the core requirements for open, urban platforms.

[ui!]UrbanPulse is one of the first urban platforms that has been aligned to the reference architecture of the MoU and thus the open urban data platform of Cologne according to GrowSmarter's “Integrated Infrastructure” measure “8.1 Big consolidated open data platform” conforms to the reference architecture.

DIN SPEC Open Urban Platform (OUP) The German standards organization DIN has picked up the activities of the Action Cluster Integrated Infrastructure and Processes on the MoU and developed an “Open Urban Platform” with a regional consortium consisting of members from cities, operators, vendors, and academia the DIN SPEC 91357[1]. The reference architecture of the MoU has served as a sound base as depicted in the figure below. Both core partners of WP3 in Cologne, the City of Cologne and [ui!], were members of the DIN SPEC team and provided strategic guidance. As consortium leader, [ui!] orchestrated input also from other members working in SCC01 projects such as Triangulum, Smarter Together and mySMARTLife.  

 

MoU Reference graphic

Urban COCKPIT The GrowSmarter Cologne Urban COCKPIT is a solution developed on top of the open urban platform and is based on the [ui!] COCKPIT. It is designed to support analytics of real time data. By integrating, processing and visualizing data, a proof of concept can be done proving that the data is really available and in good quality. This is an important step for using and offering the data for value added services.

The WebAPP has been developed for GrowSmarter to provide insight in the different measures implemented in Cologne. It gives decision makers an easily understandable overview of the current and historical state of the pilot implementation. This includes traffic and parking loads, parking situations, energy consumption and production and mobility stations. All data is provided by the infrastructures and does not include personal data. It will be used to understand which data is available, at which quality in a human understandable way. It serves therefore also as a communication tool with other departments within the City administration as well as with external parties.

Urban cockpit main view and map view

The indicator on the left side of the Urban COCKPIT main page is pulsing and gives information of the current “pulse” of the city. In case of large traffic loads, much pollution, bad parking situations, high amount of non-regenerative energy consumption, etc. the pulse is very high which indicates the city suffers from “stress”. On the right side, different tiles or certain Smart City indicators are arranged. The timeline on the bottom of the cockpit can be used to see historical states of the city.

Federation of Open Urban PlatformsWithin the DIN SPEC 91357 and in alignment to the MoU, the federation of open urban platforms has been addressed. A federation allows different urban data platforms to exchange data in a transparent way thus that smart services in any given city can benefit from data sources even outside of the city as well as deploying smart services into other cities.

The below figure provides a schematic view of such a federation depicted from the DIN SPEC 91357.

User scenario

Let’s assume, a start-up from Cologne would like to develop a mobile application that enables the multi-modal routing and integrated usage of public transport, electric mobility and different energy infrastructure elements (e.g. charging stations) across Germany. Therefore, the start-up obtains relevant data regarding the current city from the related Open Urban Platform via an Open Data Portal (e.g. https://offenedaten-koeln.de/). To extend their service to other cities in Germany the start-up uses the GovData.De portal and its data-catalog to lookup for Open Urban Platforms of other cities providing equivalent datasets and services required by their mobile application. The available information from the Open Data Portals and their corresponding Open Urban Platforms of Hamburg and Cologne has been harvested by integrating their data catalogs. This way the mobile application can transparently provide services both in Cologne and Hamburg, instead of having two APPs, e.g. one for each city. Given a user opens the mobile application in Cologne to plan a journey to Hamburg. The mobile application should provide the most convenient combination of transportation means concerning the traffic situation and public transport options and availability of charging stations.”

Our vision is therefore to connect the urban platforms within GrowSmarter across the three GrowSmarter lighthouse cities Stockholm, Cologne and Barcelona and if applicable between lighthouse cities and follower cities. This way, we allow for more smart services to be developed and thus creating an even larger ecosystem adhering to our ambitious goal of prosperity and growth.

 

Barbara Moehlendick

Site Manager, Cologne

For the previous blog post, click here

29 June 2018

Stockholm Blog #9: Looking at first evaluation results

In 2014, when we selected the smart solutions and the partners that would implement these in Stockholm, we wanted to show how a city can tackle the sustainability challenges of rapid urban growth. Now that these solutions are in place we want to evaluate the results to show that we can achieve the goals initially defined and do so in an economically sound way. When we look at the first set of evaluation data collected we can see at the same time promising results, no results at all and negative results. In many cases we simply do not have enough data to give an accurate answer. Also the systems have in many cases not been fully optimised and/or is running on partial capacity, so it is too early to define if they are working well.

Action area 1: Low-Energy Districts - What is happening in Valla Torg, Årsta and the Slakthus area buildings and what results do we have?

In Valla Torg the refurbishment of the two first multi-storey buildings (7G and 6) and the low-storey building 8 are finalised and the tenants have moved in. The evaluation of energy use has started, but the first set of evaluation data is not complete, so it is too early to tell how well the energy efficiency measures have worked. Refurbishment of the other buildings are still in progress and will be finalised between September 2018 and January 2019.

In the private condominia Brf Årstakrönet the evaluation is on its second year. The use of electricity, water and energy used for heating is evaluated. Each energy source is followed on a monthly basis and compared to the baseline.  Also the amount of solar energy produced by PV cells are measured.

Compared to 2015, the first full operational year of savings was around -10%, for district heating -30% for electricity (not including electricity used in apartments) and -4% for water.

In Slakthusarea the refurbishment of building 8 is finalised. The evaluation of energy use has started, but as the building and energy measures were so recently done there is no data yet available telling how well the energy efficiency measures have worked. The substitute buildings Kylhuset in Slakthusareaare also finalised for building related energy efficiency measures. The waste heat recovery will be installed in summer 2018 as well as the PVs combined with battery storage.

Action area 2: Integrated Infrastructures

Installing smart LED-lighting

The smart LED-street lights (solution 5) have now been in operation for 1,5 years and the system has worked well. There are three sub measures implemented and evaluated and the results for the first year of evaluation is presented below. It is important to understand that the baseline is LED-street lights. So the energy saving of replacing a metal halogen street 50 W with LED light of 30W is not included. This saving is about 30%.

  • The first sub measure is “Sensor controlled LED lighting for pedestrian and bicycle paths” to enable the lights to provide base lighting to satisfy the feeling of safety at all times and increase the level of lighting when someone approaches. The first 12 months of evaluation indicate an energy saving of 45,9% a year. The original target of 40-50% savings was thus reached.
  • The second sub measure is “Self-controlled LED street lighting with pre-set lighting schemes”. The first 12 months of evaluation indicate an energy saving of 14,4% a year. The original target of 20% savings was not reached in this first year.
  • The third sub measure is “Remote controlled LED street lighting which can be controlled from a distance”. The first 12 months of evaluation indicate an energy saving of 19,3% a year. The original target of 30-50% savings was not reached in this first year.

The next step will be to define how cost effective these sub measures have been.

A Smart Connected City

The aim of the measure 5.2 is to implement in the city environment, if possible on existing infrastructure, sensors for data collection, analysis, visualization and via an IOT platform also test the possibilities to use sensor data for direct communication to citizens as well as using flow data to pre-program and steer city infrastructure such as street lights.

Two types of sensors have been implemented in the Slakthusarea. The first type is 10 sensors for measuring vehicle traffic on a real-time base and the second type are wifi-based sensors to measure pedestrian and bicyclist traffic. The data from the sensors are analysed and visualised in the IOT platform provided by IBM. Below are some examples of visualised data analytics.

IBM, who is responsible for the open consolidated big data platform (solution 8), will build up a multiuseable data platform where real-time data can be analysed, but also were the data can be turned into practical usecases reducing transport emissions and increasing the quality of life for citizens. The development work is done in an agile process were users from different city organisations work together with IBMs development team. Currently the development team is working on developing a mobile application to help event visitors in the Slakthusarea to navigate in the area is a best possible way. In autumn the development team will start working with how the flow data collected could be used to steer street lights in the area.

CO2 emission (g/km) from passing vehicles (left) and amount of pedestrians in the area during an event (right)

Smart waste handling

The waste handling system provided by Envac has been running since the summer 2017. This solution (Measure 7.1, 7.2, and 7.3) demonstrates a smart waste solution for residential areas using differently coloured bags for different sorts of waste, transporting the bags long distance underground and sorting them automatically in a treatment plant. There are yet only two inlets in operation in the installation due to the general time plan of the refurbishment of the Valla torg site. When the AWCS is in full operation there will be 13 inlets, thus increasing the amount of waste significantly, in turn making the evaluation more relevant. The organic fraction can be used for biogas production, which in turn can be used in vehicles. So it is very promising that this fraction per quantity is the largest. 

Waste sorting results
Color Fraction Quantity Distribution
White Rest fraction 76 20,4%
Yellow Paper packaging 90 24,1%
Orange Plastic packaging 80 21,4%
Green Organic fraction 127 34,0%

Action area 3: Sustainable Urban Mobility

Building logistics centre and delivery boxes

The Building logistics centre (solution 2) implemented by Carrier, will start handling more materials for the last buildings to be refurbished in Valla Torg. Unfortunately the evaluation data is not yet available, so it is not possible to define how well the solution is working.

The implementation of delivery boxes (solution 9) by Carrier is done. The delivery boxes are actually a delivery room, which later on can be used for other purposes. The delivery room can be easily used for any type of deliveries, small and big. The deliveries are transported by bike to the room. When the package has arrived the tenant will get a message and with an app, open the door and then go and collect it.  The tenant can also put returning packages in a special shelf. As the system has been in use for a short time, only a tenfold of packages were delivered. The camera surveilled room together with identification of users and specified door codes guarantee that a package is not accessed by other users by mistake.

From package delivery by bike to pick up from Tenant using the app

Smart Traffic Management

Insero has together with NOAE (Network of Automotive Excellence) implemented an information system for drivers (solution 10). Effects on travel time and the drivers’ experiences has not yet been evaluated.

KTH has developed a smart phone application to follow up changes in travel behaviour. In the same application, information about renewable fuels in Stockholm will be shown. The application is launched, but no evaluation data is available.  

Alternative fuel driven vehicles

As part of the GrowSmarter project, Fortum will install up to 10 charging stations and one fast charger (solution 11). The fast charger is installed in Årsta. The normal chargers are also installed in Valla Torg.

The first four refuelling stations for renewable fuels are up and running. The filling station in Årsta is expected to be built in 2018. Data from the first refuelling station shows some drastic results. The station was launched in 2016 as a renewable station and drivers did not think they could also get traditional diesel there. When they did understand this, the diesel sales increased. It is important to remember that only 10% of all trucks in Sweden are defined as green vehicles, so in that perspective 18% sales of biogas is a good result.

Stockholmshem launched its electrical carpool (solution 12) for tenants and habitants in February 2018. In February and March there were 14 tenants who have enrolled themselves to the carpool. The cars are frequently used especially during weekends.

Communication and marketing

An event for tenants in Valla Torg was organised 18th of April 2018. In the events Stockholm Site partners showed smart solutions for the tenants and they could also test solutions like the cargo bike. The event was successful and received positive feedback from tenants.

All photos from the tenant event was taken by Bengt Alm.

In Slakthusarea an inauguration was held 15th of May introducing the smart solutions implemented in the area. Some 100 persons from different organisations attended the event. It was a wonderful weather and the visitors had a possibility to both listen to presentations as well as see the solutions in practice in a study visit.

All photos from the Slakthusarea event was taken by Sven Lindwall.

With this I want to wish you a very nice summer.

 

Mika Hakosalo

Site Manager, Stockholm

For the previous blog post, click here

26 February 2018

Barcelona Blog #8: Breathing new life into old buildings

Read about how Barcelona has completed refurbishment works in several building complexes, including social housing buildings, student residences, a new library and more! Energy saving solutions have been implemented together with smart monitoring systems to track the new energy performance of the buildings. The solutions being implemented could be replicated across the city and have a considerable impact on the energy performance of Barcelona's buildings.

 

Action area 1: Low-Energy Districts

To see all the measures to be implemented, click here.

Inaugural ceremony of newly retrofitted public library

The refurbishment works on the public library owned by Barcelona Municipality, which are part of the GrowSmarter project, have been completed. The inaugural ceremony of the Library Montserrat Abelló in the district Les Corts was held on 26th January with the attendance of the Mayor and other representatives of the City Council.

Located in an old silk factory, the new public library is an example of the refurbishment of an industrial building owned by the Municipality of Barcelona. In this case, three adjacent buildings (an old industrial building most recently used as a warehouse and two office buildings) have been retrofitted to become the new public library of the district, a public facility of more than 3,000 m2.

The new library is the first public building in the city of Barcelona with the BREEAM® (Building Research Establishment Environmental Assessment Methodology) certificate, a world-leading sustainability assessment method for buildings. In order to achieve this, the Municipality included energy efficiency criteria in the structural refurbishment of the building to reduce its environmental impact. The scope of the energy retrofitting works includes the improvement of the façade, roof, ground floor and glazing insulation to reduce the demand for heating and air conditioning of the building, the installation of radiant floor system for heating and cooling that contributes to the energy savings of the building, and the installation of software for the energy management of the building (BEMS). In addition, the library will cover part of its own electrical demand with a solar photovoltaic installation on the rooftop.

To watch a summary video of the inaugural ceremony please click here.

The official speech held by the Administration during the inauguration ceremony. Source: Sergi Ramos/Diputació de Barcelona
General view of the ground floor of the library. Source: IREC

Works on social housing building finished by Barcelona Municipality

The refurbishment works in the residential building of Passeig Santa Coloma 55-71, promoted by the public body responsible for social housing in Barcelona Institut Municipal de l’Habitatge i la Rehabilitació - IMHAB , were finished in December 2017.

This building is composed of 207 dwellings with a total surface of 14,165m2, which will benefit from the passive refurbishment of the entire building façade. The insulation of the building façade is expected to lead to a reduction of the heating demand of the dwellings. The benefits for the tenants will not only be lower heating and energy bills, but also improved comfort and other qualitative aspects, such as noise and humidity insulation.

In order to assess the impact on user comfort, a survey and monitoring campaign was done in February 2017 as a baseline, and a second survey and monitoring campaign will now follow in February 2018, since the insulation works are now finished.

 
 
One of the 8 renovated building entrances. Source: IMHAB

District heating connection between Melon District and DistrictClima

Melon District

Melon District Marina is the biggest student residence in Barcelona with more than 500 rooms. Melon District has a privileged location in the city thanks to its situation near the one of the most innovative neighbourhood in Barcelona, named 22@, as well as being just ten minutes walking from the centre of Barcelona.

Before the refurbishment, HVAC installations consisted of electric heaters that satisfied the heat demand and a connection to the nearest district heating and cooling (DH&C), named DistrictClima, for cooling in the summer and for domestic hot water.

Collaboration Agreement

At the outset of GrowSmarter, two buildings (not in Melon District) were under consideration for connection to the district heating network. However, after energy pre-analyses and a first contact with the communities were done, these buildings were deemed unsuitable for the project. Finally, after a long period of searching, Melon District was identified and its participation in the project was accepted by the property management in July 2016. The agreement was a private-private collaboration between Melon District property and Gas Natural Fenosa (GNF).

Before the agreement between the student residence and GNF, Melon District had already planned a refurbishment of its building, though the heating system was not part of its initial refurbishment plans. But thanks to the European subsidy (via GrowSmarter) and the participation of Gas Natural Fenosa as an Energy Services Company (ESCO), the expansion of the initial scope of the refurbishment project was made possible.

GrowSmarter measures in Melon District

The refurbishment works carried out in the framework of GrowSmarter include connecting the heating installation to the nearest DH&C (DistrictClima) and installing a building energy management system (BEMs).

Work on the building started in August 2016 and finished in March 2017. Specifically, the refurbishments in Melon District were based on:

  • Connection to the DH&C: Before the refurbishment, the heating system in Melon District was based on electric heaters to supply the heat demand. After the refurbishment, all the electric heaters were disconnected and heat is instead provided DistrictClima. This connection to the district heating network, shown in the following pictures, allows to Melon District to considerably reduce its primary energy consumption thanks to replacing the use of electricity with the DH&C.

 

 

  • Building Energy Management System (BEMS): A new Building Energy Management System (BEMS) was installed in Melon District, which will provide relevant information about the energy consumption of the building. The BEMS allows the property managers to understand the energy impact of the students' habits and reduce consumption through the application of new control strategies. Furthermore, the BEMS will help Gas Natural Fenosa to develop new strategies to better respond to disturbances or stresses in the system.

 

A Home Energy Management System (HEMS) was also installed on one floor (B4) of the Melon building, which monitors the energy use of the four bedrooms and one kitchen on the floor. Thanks to the data gathered here, Gas Natural Fenosa will be able to disaggregate total consumption measured by the BEMs by each room and kitchen in Melon District.

Together, these measures are expected to reduce the primary energy consumption of the building by 38%.

Added value

All the measures and works carried out in Melon District were part of an Energy Services contract, through which the Energy Services Company (ESCO) guarantees energy savings to Melon District as well as the correct operation of all installations for the stipulated period, in exchange of an annual fee.

Moreover, thanks to the Gas Natural Fenosa’s background and its large range of different clients, the project carried out in Melon District will be easily replicable beyond what has been demonstrated in GrowSmarter, multiplying the beneficial impacts of the project.

Last but not least, all data obtained by BEMS and HEMS will be fundamental to assessing the energy savings guarantees, thus improving the know-how of Gas Natural Fenosa and allowing Melon District to be more self-sufficient in its energy consumption.

Action area 2: Integrated Infrastructures

Action area 2: Integrated Infrastructures

To see all the measures to be implemented, click here.

Smart solution 8: Big data management

In Measure 8.2, we have added data access and query functionality beyond what GrowSmarter proposes. Concretely, we can now query and cross data from more than one source, in this case from the GrowSmarter API and from other triple stores containing Barcelona urbanistic data (where data is in RDF/OWL format). This is a first step towards integrating Linked (Open) Data.

Discussed in this blog

Solution 3: Smart energy-saving tenants

Solution 6: Waste heat recovery

Solution 8: Big data management

 

Gonzalo Cabeza

Site Manager, Barcelona

For the previous blog post, click here

22 February 2018

Stockholm Blog #8: Inside a flow

Csíkszentmihályi, who defined the state of flow, has said, "If challenges are too low, one gets back to flow by increasing them. If challenges are too great, one can return to the flow state by learning new skills.". Even if it is often referred to a personal state of mind, it could also be put in the context of the smart solutions implemented as a joint effort in Stockholm. Most of the solutions in Stockholm are implemented the first time in a larger scope, with high goals and a very tough schedule, but they are also very tightly linked to each other. Now that the implementation phase for most parts is over or in a repetitive phase it becomes evident how challenging the project actually has been and how it has required developing new skills. Now we are stepping out of this state of flow and starting sharing our experiences. And I think we have a very interesting story to tell.

Action area 1: Low-Energy Districts

What is happening in Valla Torg, Årsta and the Slakthus area buildings?

To see all the measures to be implemented, click here

In Valla Torg the refurbishment of the two first multi-storey buildings (7G and 6) are finalised and the tenants have moved in. The evaluation of energy use has started and will continue until the end of the project to secure a 2-year evaluation time.

The second half of the low-storey building 8 is finalised and tenants have moved in.

In the private condominia Brf Årstakrönet the evaluation is on its second year indicating clear energy savings.

In Slakthusarea the refurbishment of building 8 is finalised. The new tenant, nightclub Slaktkyrkan, is open and have a full schedule of live shows planned for this spring. The pictures below show some of the energy efficiency measures implemented.

New interior window with u-value 0,6, the external window is original

The building with integrated solar panels on the southern side (upper right) of the external glass roof, all lights are LED-lights

The substitute building Kylhuset in Slakthusarea is also finalised for building related energy efficiency measures. The waste heat recovery will be installed in summer 2018.

Action area 2: Integrated Infrastructures

To see all the measures to be implemented, click here

Installing smart LED-lighting

The smart LED-street lights (solution 5) have now been in operation for 1,5 years and the system has worked well. The results have been so promising that now the City of Stockholm will scale up this solution on a district level.

A Smart Connected City

In Stockholm the smart connected city will use the extensive fibre network provided and administered by Stokab, a company owned by Stockholm City Council (more information) Several Internet of Things applications and solutions can be developed thanks to the fibre network.

The implementation of sensors in the Slakthusarea is soon finalised. Most of the sensors for vehicle traffic flow measurements are now installed and most of the wifi-based sensors are going to be installed within the next two weeks.

Vehicle sensor installed measuring in- and outcoming traffic in Slakthusarea

Sign informing pedestrians and bicyclists of traffic flow measurements

IBM, who is responsible for the open consolidated big data platform (solution 8), will build up a multiuseable data platform where real-time data can be analysed, but also were the data can be turned into practical usecases reducing transport emissions and increasing the quality of life for citizens. The development work will be done in an agile process were users from different city organisations work together with IBM:s development team.

Waste Heat recovery

Fortum’s open district heating (solution 6) system has been operating during the heating season and has given better results than expected. The heat recovery can thus heat up more than the earlier calculated 700 apartments.

Smart waste handling

The waste handling system provided by Envac has been running since summer. The system has worked well with the bags provided for this purpose, but in some cases the tenants have used other plastic bags which has unfortunately broken. In the picture below you can see how the waste fractions look like inside the container before the delivery to the end sorting facility.

Mixed different coloured bags inside the container

Action area 3: Sustainable Urban Mobility

To see all the measures to be implemented, click here

Building logistics centre and delivery boxes

The Building logistics centre (solution 2) implemented by Carrier, will start handling more materials for the last buildings to be refurbished in Valla Torg. Carrier has together with Skanska agreed which material streams can be best handled by the logistics centre, and these materials will be handled by the centre during 2018.

The implementation of delivery boxes (solution 9) by Carrier is done. The delivery boxes are actually a delivery room, which later on can be used for other purposes. In the room for instance tools could be safely kept and booked by tenants.

Smart Traffic Management

Insero has together with NOAE (Network of Automotive Excellence) implemented an information system for drivers (solution 10). Effects on travel time and the drivers’ experiences will be evaluated.

KTH has developed a smart phone application (solution 10) to follow up changes in travel behaviour. In the same application, information about renewable fuels in Stockholm will be shown. The application is launched.

Alternative fuel driven vehicles

As part of the GrowSmarter project, Fortum will install up to 10 charging stations and one fast charger (solution 11). The fast charger is installed in Årsta. The normal chargers are also installed in Valla Torg.

The first four refuelling stations (solution 11) for renewable fuels are up and running. The filling station in Årsta is expected to be built in 2018.

Stockholmshem launched yesterday its electrical carpool (solution 12) for tenants and habitants.

The Valla Torg Electrical Car Pool

Communication and marketing

In Stockholm Emma Borggren-Franck has taken the responsibility of the demonstration of smart solutions. Several study visits have been organised and still more are planned for this year. There has also been a great interest for presentations of the smart solutions implemented in Stockholm. A few weeks ago we presented our experiences in Brussels and last week I was in Wien and Bratislava presenting results and experiences. In spring there are two events planned. One will be focused on the smart solutions in Slakthusarea and the second one on smart solutions for tenants in Valla Torg.

Presenting GrowSmarter in Bratislava, Slovakia

Discussed in this blog

Solution 1: Efficient and smart climate shell refurbishment

Solution 2: Smart building logistics

Solution 5: Smart street lighting

Solution 6: Waste heat recovery

Solution 9: Sustainable delivery

Solution 10: Smart traffic management

Solution 11: Alternative fuel-driven vehicles

Solution 12: Smart mobility solutions

Mika Hakosalo

Site Manager, Stockholm

For the previous blog post, click here

23 October 2017

Barcelona blog #7: Urban-scale air quality monitoring and microdistribution

Read about how Barcelona will pilot a beyond state-of-the-art wind and air quality monitoring network, including how it will integrate with the GrowSmarter platform. In addition, the first results from our last-mile delivery services with electric bicycles are available!




Action area 2: Integrated Infrastructures
To see all the measures to be implemented, click here.

Sensor deployment in the 22@ district of Barcelona
Within GrowSmarter, measures are being carried out to develop an air quality model at the urban-scale using Computational Fluid Dynamics (CFD) simulations. In order to provide real-case inputs for the operational air quality nowcasting and the short-term forecasting of the CFD models, a set of monitoring sensors will be deployed in an initial pilot area in Barcelona. The monitoring nodes, composed of wind and air quality sensors, will be installed in 4 Smart Towers in the 22@ district. This use case will also include vehicle counting equipment for emission monitoring purposes.

An urban-scale air quality model - why?
Air quality and associated impacts on public health are matters of growing concern in many urban areas. Public administration and health agencies are tasked to monitor the quality of air and, eventually, to make model forecasts to assist the adoption of reactive measures and to warn the public of air pollution that could affect vulnerable groups of citizens.

Urban-scale pollutant dispersion models require of two critical inputs: high-resolution wind fields near urban-scale morphologies (buildings) and pollutant sources (mainly derived from vehicle combustion) through sensors and emission inventories. Today, the increase in computational capabilities is making it possible to envisage a near-future scenario in which Computational Fluid Dynamics (CFD) models will be used to simulate urban-scale winds and pollutant dispersion operationally. In this scenario, the massive deployment of low-cost sensors for monitoring wind and the concentration of critical pollutants will be critical.


Mesh of Barcelona, obtained from LIDAR data, topography and cadastre data



Results for wind field (speed and direction) obtained from CFD simulation



Web-based graphical user interface for visualisation of air quality results


Sensor deployment at 22@ district of Barcelona
Using the city of Barcelona as a test bed, this use case will deploy a low-cost sensor network to extend the current monitoring network of environmental sensors to selected urban areas of Barcelona. Real-time data will be used to initialise and validate an in-house CFD-based high-resolution (tens of meters, hourly output) urban-scale air quality model before its operational implementation. This system is being developed at the Barcelona Supercomputing Center (BSC) in a joint collaboration with the Barcelona City Council (IMI - Municipal Institute of Information) and the CAPTOR project, who provides the monitoring nodes that integrate the air quality and wind sensors.

The monitoring nodes for wind and air quality will be installed in 4 GrowSmarter Smart Towers in the 22@ district, also including vehicle counting equipment for emission monitoring purposes.

The use case will deploy a monitoring system for:

  • Wind field (speed and direction),
  • Air quality (NO2 and O3),
  • Flow of vehicles (vehicles per minute).


  • Each monitoring node will be composed of an Arduino node, which have been developed as part of the Horizon 2020 CAPTOR project, and integrating several sensors on a single device. This control hardware node is in charge of monitoring, management and post-processing of raw data coming from the following integrated sensors:

    • a Davis anemometer for wind direction and velocity
    • several (up to 3) NO2 MOX sensors
    • several (up to 3) O3 MOX sensors
    • vehicle sensor to detect flow of vehicles


    The environmental Arduino nodes will be deployed in the 22@ district and are self-contained packs that are designed to be installed on public street lights and poles at a minimum height of 5 meters to avoid vandalism. All the devices in this pack are designed to be long-lasting and highly durable to reduce maintenance. This installation pack is composed of the components shown in below:


    Components of the Arduino pack


    The collected data will be sent to the GrowSmarter platform through the GrowSmarter API. The data will be used by the air quality monitoring software (nowcasting) developed by BSC-CNS that can predict wind fields in the streets with a resolution of 10 metres and 1 hour, and gas concentration with resolution of 10 metres and 1 hour. These resolution values are beyond the state of the art in air quality modelling for nowcasting.

    Moreover, the sensing data information and the sensor-derived nowcasting maps will be offered as Open Data to third parties through the GrowSmarter platform so that consumers of these environmental data can use this information to provide environmental monitoring services.

    Benefits for GrowSmarter
    This use case is a clear example of synergies gained from integrating infrastructures of GrowSmarter: The Smart Towers will provide support for the monitoring nodes and provide communication infrastructure, while the GrowSmarter platform will provide the required data storage for the collected data. The air monitoring software is an example of a service developed on top of the GrowSmarter platform that will provide monitoring services. Moreover, this use case is an example of collaboration among different entities and projects beyond the GrowSmarter project.

    Action area 3: Sustainable Urban Mobility
    To see all the measures to be implemented, click here.

    First results on the microdistribution of freight in Barcelona
    In January 2017 the microdistribution platform became operational. The service is offered by the company Vanapedal. The municipality of Barcelona has leased a public space to the company, which is obliged to be neutral in the market and work with any logistics operator willing to use the service.

    The main objectives of the measure are to:

    • Introduce a more efficient and effective freight transport system in the city centre,
    • Analyse the administrative management of a public concession,
      Analyse the business model of the service,
    • Analyse the reduction in CO2 and vehicle kilometres due to shift from conventional vehicles to electric bikes, and
    • Test a new sensor system to measure pollutants and other environmental parameters using the bicycles of the service.


    The Last Mile Operator Vanapedal offers different services, the most relevant of which is the distribution of parcels and packages from other carriers to their final destination. Carriers bring these items to the microplatform which is conveniently located close to the city centre. These are then transferred to electric bicycles and tricycles. The last mile is then performed by drivers from Vanapedal following their established routes. Parking and access regulation do not apply to bicycles, so no delivery time window restrictions affect the distribution.

    The service has been running since January 2017 from the Estació de França location with success, although the market is difficult to reach since there are also competitors and some logistics companies have begun operating their own last mile deliveries using sustainable modes of transport.


    Location of the microplatform at Estació de França


    Currently, up to 9 bicycles are being used in daily operation. The company gathers all business information of their operations including the daily number of deliveries and pick-ups, the number of kilometres covered and the time needed to cover all routes. This information is being collected monthly and the first results of the analysis of this information have been made. During the first three months of operations, 23,000 journeys have been performed and an increase in the daily number has been noted.


    Average daily number of journeys


    In February, the average distance covered was of 65.5km/day, while in March this figure increased to 160km/day due to the introduction of three more tricycles.


    Km performed by all bikes daily between January and March 2017


    Also, the effectiveness of the deliveries is being monitored. So far, the average percentage of successful deliveries has been 92.73%. This value has increased over time, but it is seen as very good compared to conventional carriers.


    Evolution of the daily effectiveness of deliveries


    The next step is to continue analysing the data obtained from the operator of the microplatform and compare it with the data obtained from the sensors that have been installed in three bicycles that offer further information such as the routes followed or the concentration of contaminants.

    The last step of the process will determine how much traffic and CO2 this measure has reduced. This will help to encourage other cities to implement similar last mile services.

    Discussed in this blog
    Solution 8: Big data management
    Solution 9: Sustainable delivery

    Gonzalo Cabeza
    Site Manager, Barcelona

    For the previous blog post, click here
16 October 2017

Stockholm blog #7: Tenants are moving in...

The personnel from Skanska and Stockholmshem have been working hard to finalise the buildings so that the tenants can start moving back as planned in September. In the last weeks, construction workers have been working nights and weekends to accomplish this. Now the first tenants have moved in and can start using all the smart solutions we have implemented. As soon as the heating season starts (we all wish the first snow would just come!) we can start getting some indications on how energy efficient the buildings are.


Action area 1: Low-Energy Districts


What is happening in Valla Torg, Årsta and the Slakthus area buildings?


To see all the measures to be implemented, click here


The smart solutions for low energy districts will be rolled out in the building zones in Valla Torg, Årsta and the Slakthus areas (see map here). For an overview of the measures being implemented, click here.


In Valla Torg the refurbishment of the first multi-storey building (7G) is on the finish line. There is still some minor painting work to be done in apartments, but all energy efficiency solutions are implemented. Here are some photos of the building:


 



New insulated façade
New subcentre



Accumulator tanks, where the recovered heat from heat pumps are stored
The waste water heat exchanger


 



Photovoltaics on the roof

In this building the tenants have the possibility to use the Active House application from Fortum to control the temperature and lighting in the apartment.


The other two buildings under construction are also well on their way. The first half of the low-storey building 8 is finalised and in September tenants moved in. The other half will be finalised later this autumn.



Eastern half of building 8

The second multi-storey building 6 is going to be finalised by the end of this year.



Building 6

In the private condominiums Brf Årstakrönet, Veolia (who just changed their name to L&T) have installed all solutions for optimising the energy use in the building. These are listed below (with pictures):


1. Adaptive control system


2. Temperature control in each apartment


3. Measurement implemented for:


a) Hot water circulation losses


b) District heat energy


c) Electricity


d) Cold Water


4. Thermographic control


5. Smart control of ventilation in garage:


a) PPM


b) Temperature, humidity


6. Electrical hub installed


7. Electrical battery storage installed


8. PV Cells and control system installed



Action area 2: Integrated Infrastructures


To see all the measures to be implemented, click here


Installing smart LED-lighting


The smart LED-street lights (solution 5) have now been in operation for a year.


A Smart Connected City


In Stockholm the smart connected city will use the extensive fibre network provided and administered by Stokab, a company owned by Stockholm City Council (more information). Several Internet of Things applications and solutions can be built on top of the fibre network.


The implementation of sensors in the Slakthusarea has started. IBM, who is responsible for the open consolidated big data platform (solution 8), will analyse data to show how people move around in the Slakthusarea. This starts as soon as the sensors can provide data in October. The project team, platform for data management, analysis tools and methodology are all in place.


Waste heat recovery


Fortum’s open district heating (solution 6) system is now installed in the datacentre. The heat recover can heat up approximately 700 apartments.


datacentre.jpg" />
Installations in the datacentre

Smart waste handling


The waste handling system provided by Envac was completed by the end of June. The pipelines, inlets and terminal of the smart waste handling system (solution 7) are in place. The terminal and inlets are now being installed.


 



Terminal
Pipe transporting waste



Container for waste
Inlets where tenants put their waste


 


Action area 3: Sustainable Urban Mobility


To see all the measures to be implemented, click here


Building logistics centre and delivery boxes


The Building logistics centre (solution 2), implemented by Carrier, will start handling more materials in autumn. Carrier has together with Skanska agreed which material streams can be best handled by the logistics centre, and these materials will be handled by the centre when the next phase of the refurbishment begins later in the autumn.


 


The implementation of delivery boxes (solution 9) by Carrier is being done alongside refurbishments of buildings in Valla Torg. When the tenants move back into their apartments starting in September, they can order packages and other deliveries straight to their homes instead of retrieving them from the nearest service point. The delivery from the service point to the building is carried out with cargo bikes.


Smart Traffic Management


KTH has developed a smart phone application (solution 10) to follow up changes in travel behaviour in a way that is more effective and has a greater response rate than traditional travel surveys. This will improve travel demand management measures. In the same application, information about renewable fuels in Stockholm will be shown. This information includes updated information on where each alternative fuel can be tanked, together with the most recent prices. The application will be launched when tenants have moved back later this autumn.


Alternative fuel driven vehicles


As part of the GrowSmarter project, Fortum will install up to 10 charging stations and one fast charger (solution 11). The fast charger is installed in Årsta. The normal chargers are also installed in Valla Torg.


The first three refuelling station (solution 11) for renewable fuels are up and running. The filling station in Årsta is expected to be built in the beginning of 2018.


Communication and marketing


In Stockholm several study visits have been arranged and there is high interest in the GrowSmarter solutions. As more and more smart solutions are implemented, the study visits will become more frequent. In October 2017 there will be an event demonstrating the smart solutions in Valla Torg. Here the focus is on city representatives. In November/December 2017 a similar event will be arranged in Slakthusarea. In spring 2018 an event is planned for tenants in Valla Torg.


A video has been produced showcasing the smart solutions implemented in Stockholm. The video can be seen here.








Discussed in this blog

Solution 2: Smart building logistics


Solution 5: Smart street lighting


Solution 6: Waste heat recovery


Solution 7: Smart waste collection


Solution 8: Big data management


Solution 9: Sustainable delivery


Solution 10: Smart traffic management


Solution 11: Alternative fuel-driven vehicles


 


Mika Hakosalo


Site Manager, Stockholm


For the previous blog post, click here

9 June 2017

Stockholm blog #6: Adaptive control for smart cities

The winter and spring weather in Sweden has been very odd, with the weather changing from cold to warm from one day to another. This year we had minus degrees and snow during Easter in late April. With the adaptive systems we have installed we have still been able to keep a steady indoor temperature inside the apartments. With traditional systems it would have either been too cold or too warm. We have also received good results from the smart street lighting and the combined renewable energy production, control and storage system. All these solutions are examples of adaptive control in cities. In this blog I will write some more about these and the other adaptive control systems we are now implementing.


Action area 1: Low-Energy Districts


What is happening in Valla Torg, Årsta and the Slakthus area buildings?


To see all the measures to be implemented, click here


The smart solutions for low energy districts will be rolled out in the building zones in Valla Torg, Årsta and the Slakthus areas (see map here). For an overview of the measures being implemented, click here.



In Valla Torg the refurbishment of the first multi-storey building (7G) is going forward and many of the smart energy saving solutions are already implemented. All installations will be finalised in the summer and tested in August. The tenants start moving back into their apartments in September. When the next heating season starts, we can begin evaluating exactly how much energy we can save in these buildings. In this building the tenants have the possibility to use the Active House application from Fortum to control the temperature and lighting in the apartment. They can also use the home/away button, which means that when they leave the apartment to go to work or on holiday, they can cut unnecessary electricity and lower the temperature a few degrees in the apartment. With a mobile application they can push the home button, which will adjust heating and electricity back to normal before they arrive home.


In the private condominiums Brf Årstakrönet the adaptive control system by Veolia has been in operation for more than a year and has resulted in substantial energy savings as well as more stable temperatures in the apartments over the year. The energy hub that consists of photovoltaics, a current equalizer and battery storage has been in use for half a year. The system provides a higher output of solar electricity and a better interface between the production and use of locally produced electricity.


In Slakthusarea the refurbishment of building 8 is well on its way and will be finalised in autumn 2017 by the Fastighetskontoret (Real estate administration office). The selection for a substitute building in Slakthusarea is done and is only waiting for an official approval from the Commission. Work on the substitute building can begin in summer 2017 and all energy saving solutions are to be implemented during this year.


Action area 2: Integrated Infrastructures


To see all the measures to be implemented, click here


Installing smart LED-lighting


The smart LED-street lights (solution 5) have now been in operation for a year. There are three different methods used to adjust the street lights to use less energy while still providing the same sense of security for pedestrians and bicyclists. The first method is applied to street lights on a walking/bicycling path. When there is no movement the lights reduce to 40% capacity. When a person approaches, the lights ramp up to full power and when the person has passed they dim down again. The second method is that each individual luminaire keeps track of when it is turned on and off and uses those times to calculate a middle point. From that middle point, the brightness is lowered to 66% for a duration of 6 hours, or until it is turned off. In the third method, all luminaires are connected to a Central Management System where a dimming schedule runs. In the dimming schedule, lighting levels are set according to sunset/sunrise and specific times during the night. The lighting is turned on at sunset to 100%, at 10 PM it is dimmed to 67%, at 1 AM it is dimmed to 50%, at 5 AM it dims up to 67% again, at 6 AM 100% and is turned off again at sunrise.


A Smart Connected City


In Stockholm the smart connected city will use the extensive fibre network provided and administered by Stokab, a company owned by Stockholm City Council (more information) Several Internet of Things applications and solutions can be built on top of the fibre network.


The implementation of sensors in the Slakthusarea has faced data protection issues which needed to be examined very carefully. Even if both solutions have previously been used at small scales in other cities, they have never been combined. The combination of sensors measuring the pedestrian, bicycle and vehicle traffic in the area will provide very accurate information about the movement of people. A communication plan must also be produced to communicate to citizens that sensors are collecting data from passing vehicles and mobile phones to be able to provide better traffic flow in the areas, especially during events. The implementation of sensors will be done during August so that the communication plan can be finalised before implementation.


IBM, who is responsible for the open consolidated big data platform (solution 8), will analyse data to show how people move around in the Slakthusarea. This starts as soon as the sensors can provide data. The project team, platform for data management, analysis tools and method are all in place.


Waste Heat recovery


Fortum’s open district heating (solution 6) system has been recovering heat from a Supermarket in Farsta, some 5km south of the Slakthus area. The installations in the data centre will be done in June and as soon as the heating season starts again, the waste heat can be used to heat buildings.


Smart waste handling


The waste handling system provided by Envac will be completed by the end of June. The underground parts of the smart waste handling system (solution 7) are in place (see image below). The terminal and inlets are now being installed.



Action area 3: Sustainable Urban Mobility


To see all the measures to be implemented, click here


Building logistics centre and delivery boxes


The Building logistics centre (solution 2) implemented by Carrier, will start handling more materials in autumn. Carrier has together with Skanska agreed which material streams can be best handled by the logistics centre, and these materials will be handled by the centre when the next phase of the refurbishment begins later in the autumn.


The implementation of delivery boxes (solution 9) by Carrier is being done alongside refurbishments of buildings in Valla Torg. When the tenants move back into their apartments starting in September, they can order packages and other deliveries straight to their homes instead of retrieving them from the nearest service point. The delivery from the service point to the building is done by cargo bikes.


Smart Traffic Management


Insero is together with NOAE (Network of Automotive Excellence) and Global car OEM, implementing an information system for drivers (solution 10). In Stockholm, ten traffic lights are equipped with software that can communicate and provide information about the status of the light and when it is about to switch to another colour. This is achieved through a data connection between the traffic light, the cars’ on board software and GPS, and a central computer handling the calculations. Through a special device in the car, the driver can receive information on what speed to adopt in order to reach a green light at the next intersection. This information tool will be tested in two cars starting in May/June 2017. Effects on travel time and the drivers’ experiences will be evaluated.


KTH has developed a smart phone application (solution 10) to follow up changes in travel behaviour in a way that is more effective and has a greater response rate than traditional travel surveys. This will improve travel demand management measures. In the same application, information about renewable fuels in Stockholm will be shown. This information includes updated information on where each alternative fuel can be tanked, together with the most recent prices.


Alternative fuel driven vehicles


As part of the GrowSmarter project, Fortum has planned to install up to 10 charging stations and one fast charger (solution 11). The fast charger is installed in Årsta. The normal chargers will be installed in Valla Torg, Slakthus area and Årsta by the end of 2017.


The first refuelling station (solution 11) for renewable fuels is up and running. The filling station in Årsta is expected to be built in the beginning of 2018.


Communication and marketing


In Stockholm several study visits have been arranged and there is high interest in the GrowSmarter solutions. As more and more smart solutions are implemented, the study visits will become more frequent. In August 2017 there is a plan to have an event demonstrating the smart solutions in Valla Torg. Here the focus is on city representatives. In November/December 2017 a similar event will be arranged in Slakthusarea. In spring 2018 an event is planned for tenants in Valla Torg.


A video has been produced showcasing the smart solutions implemented in Stockholm. The video will soon be available at the GrowSmarter website.


Mika Hakosalo


Site Manager, Stockholm

12 March 2017

Stockholm blog #5: a variety of smart solutions in implementation

GrowSmarter has reached a milestone year: by the end of 2017, all the smart solutions will be in place and in use in Stockholm. Smart solutions from each area of action have already been implemented, so the work is now shifting from implementation to demonstration and evaluation of the project. A lot of emphasis is put on communication and marketing activities in 2017 and 2018. Each partner will make a communication plan and contribute to the demonstration site’s general communication activity plan, but also look into how the smart solutions can be marketed internationally.


Action area 1: Low-Energy Districts


To see all the measures to be implemented, click here.


What’s happening in Valla Torg, Årsta and the Slakthus area buildings?


The smart solutions for low energy districts will be rolled out in the building zones in Valla Torg, Årsta and the Slakthus area (see map here). For an overview of the measures being implemented, click here.


In Valla Torg The refurbishment of the first higher storey building (7G) started in September 2016. Insulation of facades, installation of new windows and other climate shell related measures were carried out by Skanska.


 


The refurbishment of the first lower storey building (8H) started in October 2016. Work on insulating facades and changing windows has already been done, and other climate shell measures will be finalised by the end of March 2017.


The refurbishment of the second higher storey building (6F) started in December 2016. All of the measures to be implemented are part of the energy efficient climate shell (solution 1).


In the private condominia, Brf Årstakrönet, the implementation (solution 1) and (solution 3) started in January 2016 with the installation of an adaptive control system by Veolia. Veolia has also installed photovoltaic arrays (solution 4) on the roofs. The solar energy production is connected with energy storage (batteries), so that solar energy can be stored and used when it’s needed. The same solutions will also be implemented in the Slakthus area buildings during later stages of refurbishment.


In Slakthus the refurbishment of building 8 by the Fastighetskontoret (Real Estate Administration Office) started in October 2016. Unfortunately, the overall budget for the Real Estate Administration was cut, so the second building (building 7) cannot be refurbished in 2017 as planned. Therefore, we are working on finding a replacement building. The alternative building will also be situated in Slakthus area.


Action area 2: Integrated infrastructures


To see all the measures to be implemented, click here.


Installing smart LED-lighting


As described in an earlier blog, the installation of smart LED-street lights (solution 5) was finalised in June 2016 in Valla Torg and has now been in use for a full winter season. The measure will bring an estimated 50% energy savings, but actual figures have not yet been analysed.


A Smart Connected City


In Stockholm the smart connected city will use the extensive fibre optic network provided and administered by Stokab, a company owned by Stockholm City Council. Several Internet of Things applications and solutions can be built on top of the network.


In April 2017 sensors will be installed in the Slakthus area. One set of sensors will measure the pedestrian and bicycle traffic in the area. Another set of sensors will analyse vehicle traffic. We are especially interested in understanding how people travel to events that take place in this area: there are three sports arenas situated close to each other which host events year-round.


We will also install sensors for measuring air pollution. These will be placed in the same locations as the vehicle transport sensors. The real-time data that is collected will be delivered to an open consolidated big data platform for further analysis. A workshop with city departments and other interested parties is planned for the 8th of March to define the types of analysis to be done. Later in spring when the first set of data has been analysed, further workshops will be planned to define what kind of applications can be developed for lowering transport-based emissions based on the real-time data. In doing this we are defining ways to provide higher quality of life for citizens with smart connected solutions.


IBM, who are responsible for the open consolidated big data platform (solution 8), have two ongoing roles in GrowSmarter: “Sensing City Scale people movement” and “Movement of Pedestrians/Bicyclists”.


Under “Sensing City Scale people movement” IBM will analyse data on the flow of people to show how people move in the Slakthus area over time by creating heat maps. This analysis will be combined with other data such as public transport capacity, traffic measurements, weather, etc. to see how well the different transportation modes and capacities are optimised in the area, especially during events with a lot of people in motion. The project team, platform for data management, analysis tools and method are all already in place.


In “Movement of Pedestrians/Bicyclists” IBM will measure and study in detail specifically how pedestrians move in the city. A prototype user interface environment has been developed on the Bluemix platform. Sample data sets from relevant data sources have been uploaded into the Bluemix environment and made available for users, including vehicle traffic measurement data, bicycle traffic measurement data, bicycle accident data, and weather data for specific locations in the city. End user functions and graphical visualisation tools have been developed.


Together with the Traffic Administration, a plan for implementing new sensor data sources has been made. There will be 7 video sensors in the city connected via the fibre optic network to the Bluemix platform, which will feed into the traffic planner user environment in Bluemix. These sensors will be able to measure the flow, volume and direction of pedestrians, cyclists and vehicles in the selected city areas covered.


Waste Heat recovery


Fortum’s open district heating (solution 6) will be implemented in two locations. In Västberga, waste heat from data centres will be integrated into the district heating system.The same will be done for waste heat from Supermarkets in Farsta (some 5km south of the Slakthus area). The agreements have been signed and the installation in the Supermarket is completed. Due to delivery problems the heat pump could not be delivered as planned in March, so the installation in the data centre is postponed until June. When the solutions are in operation, the waste heat collected can be distributed into the district heating system and provide heat and hot water to more than 1,000 apartments.


Smart waste Handling


The waste handling system provided by Envac will be completed in June this year, with the terminal and inlets being installed during spring 2017. The different waste types will be separated by tenants into different coloured bags. The tenant places the bags in the inlet, and each bag colour is automatically identified and measured. Data from all six buildings in the project will be collected. The waste is then transported in underground pipes to the terminal. From the terminal the waste bags are sent to the sorting facility, where the different coloured bags are separated for recycling.


The smart waste handling has several benefits. It saves space compared to conventional waste containers, which can then be used for other purposes. The system also brings about benefits for hygiene and reduces bad odours. As the waste is piped to the terminal for collection, traffic for collecting waste at buildings will be reduced, meaning reduced traffic emissions but also less noise at residential buildings.


Action area 3: Sustainable Urban Mobility


To see all the measures to be implemented, click here.


Building logistics center and delivery boxes


The building logistics centre (solution 2), implemented by Carrier, started in September 2016 with the delivery of windows to Valla Torg. Carrier is together with Skanska discussing which material streams can be best handled by the logistics centre. The construction logistics are part of the production process, so the better production is planned and organised, the easier it is to provide just-in-time deliveries to construction sites. The materials are delivered outside work hours (after 5pm) so that they are available in the next morning at the construction site.


The implementation of delivery boxes (solution 9) by Carrier will be done in three buildings as part of the 2017 refurbishment plan in Valla Torg. Tenants can order packages and other deliveries straight home instead of picking them up from the nearest service point. The delivery from the service point to the building is done by cargo bikes.


Smart Traffic Management


Insero, together with NOAE (Network of Automotive Excellence) and Global car OEM, is implementing an information system for drivers (solution 10). In Stockholm ten traffic lights are equipped with software that can communicate and relay information about the status of the light and when it is about to switch. This is achieved through a data connection between the traffic light, the cars’ onboard software and GPS, and a central computer handling the calculations. Through a special device in the car, the driver will receive information about what speed to drive in order to reach a green light at the next junction. This information tool will be tested in two cars starting in March 2017. Effects on travel time and the drivers’ experiences will be evaluated.


KTH has together with Info24 (now Tingcore) developed a smartphone application (solution 10) to study changes in travel behaviour in a way that is more effective and has a greater response rate than traditional travel surveys. This will improve the travel demand management measures. In the same application, information about renewable fuels in Stockholm will be shown. This information contains updated information on where each alternative fuel can be tanked, together with most recent price.


Alternative fuel driven vehicles


As part of the GrowSmarter project, Fortum has planned to install up to 10 charging stations and one fast charger (solution 11). The fast charger is installed in Årsta. The normal chargers will be installed in Valla Torg, Slakthus area and Årsta during 2017.


The first refuelling station (solution 11) for renewable fuels is up and running. The filling station in Årsta is expected to be installed in the beginning of 2018.


Communication and marketing


In Stockholm several study visits have been arranged and there is a great interest in the GrowSmarter solutions. As more and more smart solutions are implemented, the study visits will become more frequent. In August 2017 there is a plan to have an event demonstrating the smart solutions in Valla Torg. Here the focus is on city representatives. In November/December 2017 a similar event will be arranged in the Slakthus area. In spring 2018 an event is planned for tenants in Valla Torg.


 


All Stockholm partners will produce their own communication activities plan in April, and contribute to an overall communication activities plan for the Stockholm site. In addition, the partners will start producing a marketing plan for their smart solutions as soon as the implementation is completed.


Mika Hakosalo


Site Manager, Stockholm

5 March 2017

Cologne blog #5: open air hackathon and international exchange

Action area 1: Low-Energy Districts

To see all the measures to be implemented, click here.


Energy consultation in the Stegerwald settlement


The City of Cologne and its cooperation partner, the consumer center NRW, support the GrowSmarter project in Cologne. Tenants in the project area of the Stegerwaldsiedlung are eligible for a free energy consultation. This consultation is the perfect preparation for the installation of smart home devices and smart meters in the area. Tenants can receive an overview of their electricity and heating energy consumption as well as advice about heating and ventilation.


Consultants look at all household appliances, lamps, TVs and computers, as well as electric water heaters and other big electricity consumers, taking into account also the heating costs and total annual electricity consumption. In addition, tenants are asked about their electricity consumption habits, typical ventilation habits, and radiator settings. The design of the building and the location of the apartment are also included, since these factors also influence energy consumption. The total level of energy consumption is calculated from the data gathered, and the consultant provides recommendations for better-performing appliances the results are given to the energy consultant in a report for further check up.

The tenants were informed about this with a special invitation:




Action area 2: Integrated infrastructures

To see all the measures to be implemented, click here.


Open Air Hackathon – Cologne is starting to become a smart city



What is a smart city exactly and how can one bring it to the general public? –What about transparency, citizen participation and new forms of climate protection? Initiated by the activities of GrowSmarter, the City of Cologne, RheinEnergy and representatives of civil society pursued this question on 28 October 2016 at an Open Air Hackathon.




First meeting on Friday, 28 October


Within the framework of a “Pen and Paper Hackathon”, new application scenarios for a smart city were sought with specially developed environmental sensors. Under the motto "Open Air Cologne", interested parties were invited to place initial rudimentary sensors in different locations in Cologne to get an overview of where and how pollutant concentrations are generated and spread. As a first step, about 20 NO2 measuring stations should be installed for interested citizens in Cologne.

NO2 (nitrogen dioxide) is a gas emitted, among others, by combustion engines. The goal is not 100% accurate measurement results, but the transfer of technology and know-how. Competent experts from research and science as well as from the field of industry provide corresponding input before the first prototype sensors can be used to gain experience.


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Sensor Data from Friday, 2 February – 06:00 AM

The pursuit of new ideas did not end with the conclusion of the Hackathon, it continues with the cooperation of the city of Cologne, project partners from GrowSmarter and the Kölner OK Lab (codefor.de) as well as the regular Open-Data-Roundtable initiated by the City of Cologne (#ODRC). The Hackathon was the starting point for a regular exchange with interested citizens and stakeholders, centring around questions like: What was the experience like with the sensors? How can technology be used in a targeted way to solve problems with open data? Does the solution already exist somewhere?


The Cologne OK Lab is a regional group of designers, developers, journalists and others who meet every two weeks to work on useful applications for open data.


In the process, the group develops different applications, for example to display Cologne’s playgrounds or monuments on maps, to find homes for animals in Cologne's animal shelters, or to show 3D representations of how many young people live in Cologne.


OK Lab is sponsored by the Open Knowledge Foundation, which launched the network of OK Labs in 2014. Code for Germany provides OK Labs with the necessary infrastructure to network with each other. In addition, the program supports the local groups in communication with government, institutions and the public. Decision-makers and administrations are also involved in the processes.


In this respect, the organisers of the Hackathon were grateful to have found this group interested in establishing the participative approach of GrowSmarter permanently. The event itself was divided into two sub-events: the actual sensors were built at the beginning of the one-week festival as part of an embedded hardware meetup and were distributed during this workshop. First, the functional principles of the sensors were shown and explained. There were demonstrations about what happens with the collected data and how it can be examined and further processed, e.g. to correlate with other data or create visualisations.


Participants could take sensors home, install them, and thus support Open Air Cologne with their own data. The second part of the Hackathon focused on the actual development of applications and the optimisations around the sensors themselves, including measurement accuracy, design of housing, etc. The discussions went until late in the evening with the participants working enthusiastically. For the first time, interested people will be part of the data collection and, in addition to the hardware and software engineering of environmental sensors, will also learn about the background and technical know-how on topics related to environmental measurements.




Design concept of Sensor Board and Body


Where does it go from here?

Additional information will be found on following websites: http://openair.codingcologne.de/

The entire codebase will be available on: https://github.com/openaircgn



Action area 3: Sustainable Urban Mobility

To see all the measures to be implemented, click here.


Progress in CarSharing for sustainable urban mobility


The expansion of the mobility points in the Mülheim district is proceeding rapidly. Last year, four new Cambio CarSharing stations were opened. Two of them, REGENTEN and VON-SPARR, have already been equipped with charging stations from RheinEnergie (so-called Tank-E) and electric cars.


All new stations are within walking distance to public transport nodes. This is important in order to complement and connect different forms of mobility in the area. The station Bahnhof Mülheim is connected to tram, suburban train and regional transport. At the station Deutz, next to the station Auenweg at Charles-de-Gaulle-Platz, there is also a connection to the long-distance transportation. In the entire city area of Mülheim there will also be the possibility to use KVB´s bicycles, completing the service offer.


A total of 31 vehicles - including 4 electric ones - are now available to residents of the Mülheim area at different seven stations. Due to the variety of vehicles - in addition to the e-vehicles and small cars, there is also a truck, van or transporter – there are specific vehicles for many different requirements.


The GrowSmarter mobility points are not yet equipped with electric cars, but will also be equipped with Tank-Es and Renault Zoes in the following weeks. With a range of almost 120 km, the Renault Zoe is not just for going shopping in the city. Despite the compact size, it offers enough space for four people. Also the trunk has significant storage space. The Zoes are charged with green electricity. Thus the people of the Mülheim area can make a trip to the countryside without producing particulate pollution.


In addition to the seven existing stations, the station network in the district of Mülheim is to be further consolidated this year. Currently, two new stations are planned for 2017. The aim is to imlpement a comprehensive car-sharing service in Mülheim.




Map of car-sharing points in Mülheim Map of car-sharing point in Deutz



Presentation of GrowSmarter at 3rd World Internet Conference in Wuzhen/Shanghai

In September 2016 a delegation consisting of mayors of large towns, employees of market-leading enterprises and representatives of the company CETC visited the city of Cologne. The delegation was led by Dr. Wanje Chen from Graz, a follower city in GrowSmarter.


The representatives were informed about the aims and management of the smart city projects in Cologne. During a study tour in Stegerwald settlement the GrowSmarter project was presented. The integrated approach in the areas of energy, mobility and information technology impressed the delegation very much, and the city of Cologne was invited to participate at 3rdWorld Internet Conference in Wuzhen /Shanghai. This conference is attended by participants from all over the world.


The representative of the city of Cologne answered questions about smart city projects and GrowSmarter specifically to an audience of about 800. Particular attention was paid at the way of information and participation of the affected citizens during the entire process. The majors were highly interested in the implementation of innovative measures.


The exchange across the borders of continents has brought new knowledge and ideas to all sides, and should be continued.



Photo of Representatives of Wuzhen Conference and City Cologne (M)



District talk in Mülheim - Citizen participation in the GrowSmarter

On 15 December 2016, Mayor Reker invited the citizens of Mülheim to express their concerns and questions related to GrowSmarter. All the construction measures in Stegerwaldsiedlung as well as the plans for the mobile stations in the urban area Mülheim were presented. More than 600 suggestions and questions were collected from the participants, and Mrs. Reker assured that the questions would be answered within 14 days. A film was also shown to present the GrowSmarter measures and directly address tenants' concerns. The dialogue process is to be continued in summer 2017 with an event in Stegerwaldsiedlung.



Photo of GrowSmarter Information Point