District heating system

The municipalities we serve 

We provide district heating across various locations in the capital area, south, and west regions of Iceland. Our district heating systems are operated in partnership with local authorities in key areas such as Reykjavík, Kópavogur, Hafnarfjörður, Garðabær, Akranes, Borgarbyggð, Stykkishólmur, Hveragerði, Þorlákshöfn, Hvolsvöllur, Hella, and in rural Rangá. Additionally, we manage seven independent district heating systems in the south and west, including Austurveitur in Ölfus, Grímsnesveita, Hlíðarveita, Munaðarnesveita, Norðurárdalsveita, Rangárveita, and Skorradalsveita. 

District heating System in the Capital region 

The source of the hot water is from geothermal wells in the capital region and from the geothermal cogeneration power plants at Hellisheiði and Nesjavellir. 

Hot water from the wells is pumped by well pumps into pumping stations and then it is supplied either straight to our customers or into hot water tanks before being distributed to homes and businesses. 

Hot water from the power plants is pumped into hot water tanks on Reynisvatnsheiði before it is distributed to our customers. A part of our heating system is designed so that return water that has been used by our customers for household heating is returned to the pumping stations. This helps to cool the water coming from the wells or power plants, which is often very hot, down to around 80°C.