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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

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
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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.



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
waste.jpg" style="max-width:100%;">
Pipe transporting waste
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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

Insero is together with NOAE (Network of Automotive Excellence) and Audi implementing an information system for drivers (solution 10). This information tool was tested in two cars in June/July 2017. Effects on travel time and the drivers’ experiences are now being 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. 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

8 June 2017

Barcelona blog #6: Nearly Zero Energy Buildings and innovative heating/cooling solutions

Action area 1: Low Energy Districts
To see all the measures to be implemented, click here.

Smart solution 1: Works ongoing in the refurbishment of tertiary building Ca l’Alier

The refurbishment work in the future office building Ca l’Alier is ongoing. The building, owned by a Public-Private Partnership between the Municipality of Barcelona and Cisco, is composed of three units built in 1877 with a total surface of 2,400 m2. It has been out of use for a very long period, and thus suffered from degradation of the building facilities.

The old textile factory will be rebuilt into a nearly Zero Energy Building (nZEB) including a range of passive and active measures. nZEB describes buildings with energy use near to 0 in a “typical year”, meaning that much of the energy consumed comes from the building itself by means of renewable sources. The renovations will be carried out in order to turn the building into a "prototype of a self-sufficient habitat" that produces enough energy resources to meet its own demand. The project aims to achieve a Platinum LEED (Leadership in Energy & Environmental Design) certificate awarded by the US Green Building Council.

Work on the foundation started in June 2016 and finished in April 2017, which is now followed by refurbishments to the basement, paving and underground sewage networks that started in April 2017 and will continue out through 2017.


Foundation work in September 2016. Source: BIMSA



Ongoing refurbishments. Source: BIMSA


Ca l’Alier will demonstrate the feasibility of an nZEB site through active technologies, such as LEDs and occupancy sensors for lighting, variable speed fans and free-cooling for HVAC (Heating, Ventilation and Air Conditioning), photovoltaic panels, connection to the local DHC network that uses waste heat from Municipal Solid Waste incineration, and a Smart Energy Management System. Passive measures include exploitation of natural lighting, wall and roof insulation to lower heating and cooling demands, and rainwater collection to lower water consumption, among others. In order to meet the technical specifications for nZEB, coverage of 70% or more of the consumption of primary energy will be from renewable resources while a special effort in the design has been put on lowering the building energy demand. Also, the energy management system will be capable of optimising current consumption and forecasting the future building energy consumption. Finally, Ca l’Alier will demonstrate the compatibility of open communication protocols with HVAC equipment.

With advanced ICT infrastructure, advanced control of facilities and connection to district energy networks, Ca l’Alier integrates the features of a low energy district and will be an excellent demonstration of smart city solutions in the city of Barcelona.

Smart solution 1: Refurbishment of the Sports Centre

Collaboration Agreement
Following the audit, engineering, proposal and negotiation phases, a participation agreement was reached within GNF and Fundació Claror. The sports centre up for refurbishment within GrowSmarter is the Cartagena Sports Centre, located in the Sagrada Familia neighbourhood in Barcelona.

The refurbishment is taking place under an Energy Services contract, through which the Energy Services Company (ESCo) provides a turnkey solution and provides the initial investment, while the customer pays an annual fee.

Public-Private collaboration
Fundació Claror is a non-profit organisation that manages publicly owned sports centres. The organisation is interested in carrying out energy refurbishments in the facilities they operate to improve sustainability, energy and economic efficiency, and increase comfort.

This and several other sports centres in the city are publicly owned, and exploitation is awarded to private companies by the Barcelona Sports Institute (IBE, in Catalan). This organisation has also participated in negotiations and supported the project.

The Sports Centre
The Cartagena Sports Centre is an urban sports centre with a large swimming pool area (over 600 m2), a spa area, an indoor sports pitch and a fitness area. Other facilities include group activity rooms and spaces dedicated to physical therapy. The total surface area is close to 3,000 m2.



Current equipment mainly consists of natural gas-fired boilers that satisfy most of the heating demand and DHW needs, electric heaters that serve the spa pool, an electric chiller that serves air handling units (AHUs) in the fitness area and other spaces, and dehumidifiers for the pool and spa areas.

Energy Conservation Measures (ECMs)
In the framework of GrowSmarter, an integrated refurbishment of the Centre’s facilities will be carried out, ranging from passive measures that aim to reduce thermal demand to installation of new equipment to increase energy efficiency in the production of thermal energy. The measures selected are intended to complement each other and achieve a technically and economically optimised level of investment and savings. Work in the sports centre began in April 2017.


  • As passive measure, the roof over the main pool hall has been refurbished by adding a layer of insulation within the dropped roof to reduce losses through this surface.

    Initial roof – no insulation

    Insulated roof

  • The heating demand of the pool hall will be further reduced by replacing the current dehumidifier with a new machine that consumes less electricity and includes a thermal recovery module. The bottom line is a reduction of the electricity consumption and heating needs of the pool space, ultimately reducing the amount of heat required from gas-fired boilers.

  • The current chiller will be replaced with a new electric heat pump that produces heating and cooling at a high efficiency. In order to integrate this heat which is available at 40-50ºC, it is necessary to separate existing thermal demands in low temperature and high temperatures through modifications in the distribution system. This solution is especially interesting in buildings with simultaneous heating and cooling needs such as sports centres (pool spaces are often heated while other areas are cooled).

  • To further capitalise on high-efficiency heat from the heat pump, the spa basin will be connected to the new heating ring. This will yield important electricity savings, as it is currently being heated using electric resistance heaters, which are very inefficient.

  • Heating needs not covered by the EHP (e.g. DHW heated up to 70-80ºC for sanitary reasons) will be covered using a new set of high-efficiency boilers replacing the existing ones.

  • Important electricity savings will come from replacing existing lighting equipment with equivalent LED lamps.

  • New equipment and other key systems will be monitored with a new Building Energy Management System (BEMS), which will provide relevant information for more efficient energy management and allow remote monitoring of main energy indicators via web access.



Altogether, total energy consumption is expected to be reduced by more than 40%.

Added value
Gas Natural Fenosa has been offering Energy Services contracts to commercial and industrial customers for several years, including several sports centres in Barcelona, making this project highly replicable in further clients.

Through this contract, Gas Natural Fenosa guarantees energy savings for the sports centre, providing an increased value to the solution from the client’s point of view. Data gathered by the BEMS will be fundamental to assess these energy savings. Furthermore, the company guarantees the correct running of the refurbished systems for the duration of the contract.
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 Audi, 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

31 October 2016

Stockholm blog #4: from nothing to everything all at the same time

GrowSmarter is a complex project in which many solutions are linked to each other and both planning and implementation must happen in an integrated manner. This is very evident in Valla Torg, where the tenants must first vacate the buildings before the smart solutions can be implemented in and around the buildings. As this process didn’t start as planned in February 2016, but rather in August, we are now in a very hectic implementation phase where everything happens at the same time, as we still need to keep the original timetable. In this blog I will explain in more detail everything that will happen in the next few months to come.





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.


For those of you who didn’t have a chance to read my previous blog posts, the smart solutions for low energy districts will be rolled out in three building zones, namely Valla Torg, Årsta and the Slakthus area (see map here). For an overview of the measures being implemented, click here. In Valla Torg tenants began leaving the buildings in August and the first high-story building has scaffolding (pictured). Work on the façade will start in October. The walls will receive more insulation and new energy-efficient windows will be installed by Skanska. The interior work will also start at the same time. Old pipelines will be removed and new insulated pipelines will be installed. All these measures are part of the energy efficient climate shell (solution 1).


In the private condominia Brf Årstakrönet, the refurbishments (solution 1) and (solution 3) started in January 2016 with the installation of an adaptive control system by Veolia. Veolia will also install photovoltaics (solution 4) on the roofs upon receiving the building permit. The same solutions will also be implemented in the Valla Torg and Slakthus area buildings during later stages of refurbishment.

The real estate administration office (Fastighetskontoret) has made a procurement of a building contractor for Slakthusarea, but the decision has been appealed. As soon as the court has given its decision the work can continue.


Action area 2: Integrated infrastructures

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


Installing smart LED-lighting

The installation of smart LED-street lights (solution 5) was finalised in June in Valla Torg. The adaptive LED-lighting will reduce energy consumption by 50% while still providing the same sense of security along walking and bicycling paths. Each street light features a radar detector that senses movement on the path (Picture). As soon as any movement is detected, the light is activated and the movement is communicated wirelessly by radio to a number of nearby street lights. As a result, cyclists and pedestrians experience normal illumination levels along their entire route. In Stockholm the lights are not fully turned off during periods without movement, but rather dimmed down and then activated to full light as soon a person approaches.



Smart LED-lighting in Stockholm


Waste heat recovery

Fortum’s open district heating (solution 6) will be implemented in two locations. Waste heat from Data Centres in Västberga and waste heat from Supermarkets in Farsta (some 5km South of the Slakthus area) will be integrated into the district heating systems. The agreements have been signed and the installations will begin in October-November. When operational, the waste heat collected will be distributed into the district heating system and provide heat and hot water to more than 1,000 apartments.


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 fibre optic network. Together with different departments and city owned companies, we are defining ways to provide higher quality of life for citizens with smart connected solutions in a series of workshops. We will start the process with defining the users’ needs. We have defined three groups of users: inhabitants, visitors and companies. In the Slakthus area we are focussing on visitors and companies, while in Valla Torg the focus is on inhabitants. In my last blog I addressed some of the activities in the Slakthus area, so in this blog I will cover how apartments with simple installations can provide many new functions.


In residential houses, as the tenants change over time, we should install equipment which can be used by several end users and for several purposes. Let’s say we install a movement sensor and water meters in every apartment. If the inhabitant is old, maybe the relatives would like to have a way to monitor her well-being. For example, a simple alarm function could be built and an automatic message sent to relatives when the motion sensor senses the person is inside the apartment, but has not used water for 12 hours. We can also collect water use data and the housing company could, for instance, detect leakages when water is being used and no one is home. If we realise that people use water in different ways, from very little to very intensively, we can create individual water billing so that everyone only pays for the water they use.


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

In “Sensing City Scale people movement” IBM planned to analyze mobile phone data and create heat maps to show how people move in the city over time. This analysis was to be matched against 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 city. The project team, platform for data management, analysis tools and method are all in place. A subcontractor was identified and final negotiations for delivery of Telco data were in progress at the beginning of 2016, with the project start scheduled for 1 February 2016.


But an unexpected issue arose. Based on a thorough legal assessment of the current Swedish Personal Data Legislation (PUL) and the EU General Data Protection Legislation (EU GDPL), the subcontracted Telco cannot provide the requested mobile telephone data for citizens of Stockholm in a way that would make it useful to the use case defined by IBM Research Dublin Lab. The only legally approved way for getting access to mobile phone trajectory data is to ask the citizens to voluntarily participate in the project and thus explicitly give consent for the project to track the movements of their mobile phones over time.

The merits, challenges and feasibility of this alternative approach will be assessed by the City of Stockholm and IBM, and a decision on whether to attempt this approach - by consent will be made in 3Q 2016.


In “Movement of Pedestrians/Bicyclists” IBM will measure and study in detail especially how pedestrians move in the city. A prototype user interface environment has been developed in the Bluemix platform. Sample data sets from relevant data sources have been uploaded into the Bluemix environment and made available for the 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 visualization tools have been developed, e.g. new work project definition, traffic data selection, report generation, and graphical data visualization.


A plan for implementing new sensor data sources in Aug/Sept 2016 has been agreed upon with the Traffic Administration. This will consist of 7 video sensors in the city infrastructure connected through the city fiber optic network to the Bluemix platform. Data from these sensors will be uploaded 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.


Smart waste handling

The underground parts of the smart waste handling system (solution 7) provided by Envac will be implemented in October and November (pictures). The terminal and inlets will be implemented during the beginning of 2017. The waste is compacted right below the waste inlet in the storage pipe instead of upon arrival to the waste terminal. The compacted waste allows for smaller pipes and a reduction of the airflow by as much as 50%. These factors together result in a reduction of energy consumption up to 50%. The solution will consume less energy per tonne of collected waste than any other comparable traditional waste collection, including ordinary waste collection vehicles.


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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 center (solution 2) and delivery boxes (solution 9) will be implemented by Carrier starting in October and November. The location of the buildings logistics centre has changed and will now be in Slakthus area. Carrier has together with Skanska discussed 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 of materials to construction sites. Typically the materials are delivered outside work hours (after 5pm) so that they are available the next morning at the construction site. There are several benefits of the construction logistics centre. First, there are fewer materials wasted and damaged at the construction site, along with less traffic to and from the construction site. The construction site can also be kept clean, as the packaging waste is regularly removed. What’s more, production is enhanced as materials needed for work are constantly available and it is always clear where the materials are and how much is in stock.


Delivery boxes (pictured) are installed in the entrance of the refurbished buildings in Valla Torg next to the post-boxes. Tenants 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, together with NOAE (Network of Automotive Excellence) and Audi, is implementing an information system for drivers (solution 10). In Stockholm around ten traffic lights will be equipped with software that can communicate and inform users about the status of the light and when it is about to change. 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 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 for a few months’ time. Effects on travel time and the drivers’ experiences will be evaluated.


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 will soon be installed in Årsta. The location has been selected and the charger has already been delivered. The normal charging stations will be installed in Valla Torg, the Slakthus area and Årsta.

The first refuelling station (solution 11) is up and running (picture). The filling station in Årsta is expected to be established in the beginning of 2017.




Citizen engagement

A citizen engagement event was organised in Valla Torg in September. The event was very successful with around 500 visitors and positive feedback. The event was also the launch of the refurbishment in Valla Torg, and the audience had the opportunity to get information both on the GrowSmarter project and the different smart solutions from our partners, and to visit the exhibition apartments.





Mika Hakosalo

Site Manager, Stockholm