
District heating and cooling
Our district heating and cooling systems are built around a well-developed network that enables efficient use of resources.
District heating is a resource-efficient way to heat Stockholm
We heat water in our installations and distribute it through our network to our customers’ properties. Most of the energy comes from residual products from the forestry industry as well as sorted municipal waste. By making use of these resources, we are able to reduce energy losses and contribute to a more sustainable society. Our energy recovery from waste integrates key societal needs: waste treatment, heating and electricity generation. At the same time, we are removing unwanted substances from the cycle, such as heavy metals.
The surplus becomes district cooling for our customers
We use seawater as well as excess cooling from heat pumps and cooling machines to cool water, which is then distributed to our customers. The cooling is used to create a pleasant indoor climate in buildings. The excess heat that is collected is largely recovered in the form of district heating, thanks to our integrated systems. Stockholm probably has the world’s largest district cooling network, with access to district cooling across virtually the entire city centre and several other areas.
Facts about district heating and cooling
- Stockholm has the world’s longest continuous district heating network
- District heating water is colored green to make it easier to see leaks
- We keep more than 800,000 Stockholmers warm
- Stockholm Exergi treats 800,000 tons of Stockholmers’ waste every year
- The district cooling network comprises 250 km of pipes and is probably the world’s largest




