In City of Malmö, Sweden, two case studies have been performed. The first one examines a smart energy system on household level, the second one a new industrial area in the Northern Harbour.
Case study: Smart Homes
Project description: Eight new apartments have been erected in the Western Harbour in Malmö, Sweden. The energy company E.ON will demonstrate new ways to generate and use energy through interaction with its customers in the houses called Hållbarheten (Sustainability). The initiative, supported by City of Malmö, does meet all three corner stones of the e-harbours project; smart grids, electric mobility and renewable energy.
What we have done
- The eight houses are equipped with different solutions testing new techniques and 100 measuring points to monitor the results. All houses are equipped with smart grids where also price adjusting solutions are tested for steering of electric cars charging, freezers and laundry machines.
- The house is equipped with solar collectors, photovoltaics and it’s own wind mill.
- Five electric cars, one electric vespa and 7 electric bicycles are included in the house for the use of the residents. The vehicles are charged in the garage.
- For the evaluation of the showcase E.ON and residents of the house have been interviewed and data collected.
- Flexibility in energy consumption have been found from dish washers, tumble dryers, washing machines and electric vehicles charging, in total 44 000 kWh per year.
- If we would upscale the Smart Homes to all newly built apartments in the City of Malmö the total annaul load shifting would be 63 MWh per year.
- Most of the technical solutions for a Smart Home are today on the open market, but not all of them, for example vehicle to grid-solutions. However E.ON have packaged some of the solutions from the Smart Homes in to a package that could be installed in newly built apartments for a smaller cost.
- In total however, the flexibility in household energy consumption is quite small
- Since household flexbility is quite small smart grid technology on household level needs to be justified with other means than purely economic, as a symbol it has proven to be very strong.
- Act smart from the start. To include the different solutions already in the planning phase is crucial to reach a good result.
- To benefit from flexibility on household level hourly metering of energy usage is crucial, the Swedish legislation allows this which has been a corner stone.
Reports and more information
- Now the families have moved in the Smart Homes, see them all here
- Staff exchange in Malmö. City of Amsterdam visited Malmö. Calendar event »
- Are you ready to move in? The eight new Urban Villas that E.ON is building in the Western Harbour in Malmö are just about to be finished. Article in e-harbours newsletter #3 »
- The Malmö showcase in the e-harbours project fits perfectly in the climate policy of the Municipality, and brings it one step further. Article in e-harbours newsletter #2 »
- The inaguration of the construction of the houses took place in June 2011 and according to plan the houses will be ready and customers shall be able to move in the summer of 2012. Read more: Article in e-harbours newsletter #1 »
- Project information at E.ONs website » (Google translate)
- Press information on the project from E.ON » (Google translate)
- The architect firm Hauschild-Siegel »
- Pictures from the project from E.ON »
- Video on the project at Youtube » (Swedish)
- Smart Homes on BBC World Horizons
- The energy is steered through an app » (In Swedish)
- E.ONs Smart Homes controls your energy usage » (In Swedish)
- E.ON to build houses for the future of energy »
Case study: Norther Harbour
Project description: The Northern Harbour in Malmö is the new industrial harbour area for industries and energy production. The Northern Harbour includes both large energy consumers and the most vital energy production facilities in the city. The scope of the case study was to find excess heat and renewable heat for the district heating grid.
What we have done
- Mapped energy flow, waste and transport in the Northern Harbour.
- Interviewed 17 energy actors and consumers in the Northern Harbour.
- Interviewed six energy producers in the Northern Harbour.
- More excess heat from industries are available.
- More heat could be produced renewable, for example via wood burners replacing compressed natural gas CHP plant.
- SYSAV could store heat locally from day to night when needed.
- One problem that might occur is when there is a monopolly on the district heating grid which might stop new actors from delivering energy into the grid.
- A general recommendation is that there is often excess energy to be found in industrial areas if you are looking close enough for it.
Reports and more information
- The City of Malmö has decided to redevelop a large harbour area for logistics and industry. The redevelopment of the Northern Harbour will take decades, but the guiding principles have been set already. Read more in Newsletter #4 »
- “The harbour is a green project” (In Swedish)
- Sydsvenska Dagbladet: The Northern Harbour (In Swedish)
Showcase leader Marcus Ljungqvist, City of Malmö