Carbon neutral district heating in Espoo in the 2020s

Espoo Clean Heat

The logo of Espoo Clean Heat project

Fortum and the City of Espoo have committed to carbon-neutral district heating in the district heating network operating in the Espoo, Kauniainen and Kirkkonummi regions in the 2020s. The development work has since been accelerated with a new intermediate goal to discontinue the use of coal in 2025. The accelerated project for carbon-neutrality in 2020's is called Espoo Clean Heat.

The new generation of district heating is based on replacing fossil fuels with smart and flexible solutions, e.g. by utilising waste heat, renewable electricity, geothermal energy, and bioenergy. Artificial intelligence optimises the district heating system’s operations.

Espoo district heating transformation journey 2014-2029

Our current clean energy projects in Espoo 

2020: New bio-heating facility in Kivenlahti

The new biomass-fired  49 megawatt heating plant was commissioned in the spring 2020 in the area of the existing Kivenlahti facility, where two wood pellet boilers already produce district heat. The new facility replaced one of the two coal-fired units in the Suomenoja power plant. The commissioning of the facility increased the share of carbon-neutral district heating in Espoo to 40%.

2020: Otaniemi Geothermal Heat Plant

Our partner ST1 is drilling the world’s deepest geothermal heat wells in Otaniemi, Espoo. Starting next year, the plant is expected to cover 10% (40 MW) of our district heating network's heat demand in Espoo. 

2021: The new heat pump unit in Suomenoja

The new 20 MW unit will be built in the Suomenoja heat pump facility. As the other units, also the new unit will utilize the excess heat from treated waste water and sea water in the summer. The unit is expected to be commissioned in autumn 2021. The facility will raise the share of carbon-neutral production to 50% in 2022. 

Share of carbon neutral district heating in Espoo (forecast)

The share of carbon neutral district heating in Espoo (forecast)


Pasi Kokko
Head of Customer, DHC Finland
Tel: +358 40 169 2500