Origin of heat and energy sources

Our strategic objective is to achieve the net zero target by 2040, in line with the Science Based Targets (SBT) framework. The net zero target replaces our previous goal of achieving carbon neutrality by 2030. Read more about our climate targets here. 

Heat procurement

Heat procurement in 2025, including district heating and steam:

Origin	2020	2021	2022	2023	2024	2025
Toppila	50.4%	26.8%	35.1%	32.5%	27.1%	30.1%
Biopower plant	16.2%	48.6%	44.1%	46.8%	45.9 %	41.5%
Ecopower plant	22.3%	17.6%	17.9%	17.1%	17.8 %	18.7%
Electric boiler				0.3%	4.9 %	6.9%
Heating centres	0.4%	1.1%	0.7%	0.8%	1.4 %	0.4%
Waste heat					0.1 %	0.7%
Purchase	10.6%	5.9%	2.2%	2.5%	2.8 %	1.7%
Total GWh	2,133.0	2,488.0	2,318.0	2,278.1	2,316.3	2,175.0

 

The energy sources of district heat

In 2025, the energy sources of district heat sold to our customers were divided as follows: 

Energy sources	Own production	Including purchased heat
Peat	4.3%	4.2%
Oils	1.1%	1.1%
Wood	75.2%	76.0%
Other biofuels	0.0%	0.0%
Renewable fuels and waste	9.6%	9.3%
Electricity	8.7%	8.4%
Waste heat	1.0%	0.9%

In 2025, 87.6% of the district heat sold to our customers was produced with renewable energy sources and 0.9% was generated from waste heat.

Other biofuels: plant-based biofuels, excluding wood-based biomass 
Renewable fuels and waste: SRF and demolition wood, municipal waste, and mechanically sorted waste

Specific annual emissions of district heating

Specific annual CO2 emissions of district heating delivered to the customer:

	2022	2023	2024	2025
Energy method (g CO₂/kWh)	111.1	91.3	52.0	31.8
Energy method (g CO2(eq)/kWh)	112.9	94.5	54.7	35.1
Benefit distribution method (g CO₂/kWh)	78.7	67.3	40.6	25.4
Benefit distribution method (g CO₂ (eq)/kWh)	80.0	69.6	42.7	28.0