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Annual and Sustainability Report 2024

Distribution system

From our production plants, we pump water into a pipeline network that reaches thousands of buildings throughout greater Stockholm.

Our plants are part of the cityscape

Our plants are well-known parts Stockholm’s cityscape, from Brista in the north to Högdalen in the south. Production data for our five largest plants is shown in the image on the right.

Map
1
1

Brista plant

1,027 GWh heat
141 GWh electricity
Steam boilers
Waste and solid biofuel

2
2

Hässelby plant

170 GWh heat
40 GWh electricity
Steam boilers
Wood pellets and fuel oil

3
3

Värtan plant

2,794 GWh heat
318 GWh electricity
Steam and hot water boilers, heat pumps, solid biofuel, bio-oil, fuel oil, energy from sea water

4
4

Hammarby plant

1,274 GWh heat
Heat pumps and hot water boilers
Electricity and bio-oil
No electricity production. 
Residual energy from wastewater from Henriksdal treatment plant used in heat pumps

5
5

Högdalen plant

1,709 GWh heat
205 GWh electricity
Steam boilers
Waste, reclaimed wood, bio-oil and fuel oil

Demand for sustainable energy drives us forward

We meet Stockholm’s heating, electricity and cooling needs through efficient and flexible energy production. In our plants we create district heating from the solar energy stored in biofuels, from wastewater waste heat and from non-recyclable waste, and also where we extract cooling from seawater.

Facts about our production system

  • Circular energy recovery – A large proportion of the energy in the system comes from the recovery of residual heat, from waste incineration and from biofuels. This helps makes the energy supply more sustainable
  • Flexible production – The company has several production plants, including at Värtan, Brista, Högdalen, Hässelby and Hammerby. These plants are able to use different types of fuel such as biofuel, waste and electricity to optimize energy production as needed
  • Electricity generation – Stockholm Exergi also produces electricity at CHP plants for delivery to Stockholm’s electricity grid, which helps stabilize the energy supply