Share of coal power in Finland nearly zero as cogeneration plant shuts down

Helsinki’s municipal energy company Helen closed its last coal facility. Together with the country’s remaining plants that use the solid fossil fuel, Salmisaari accounted for just 0.8% of the electricity mix in 2024. The Government of Finland earlier set May 1, 2029, as the coal exit date.

Two years ago, the Olkiluoto 3 nuclear reactor of 1.6 GW, the strongest in Europe, entered commercial operation. Apparently it helped the energy system of Finland to almost eliminate coal from the board. Helen, controlled by the local authority of the capital Helsinki, closed its Hanasaari B plant in 2023, leaving the Salmisaari combined heat and power (CHP) facility as the only one using coal. This week the company shut it down.

Finland is now using neglectable quantities of coal. Salmisaari has 177 MW in power capacity and 300 MW for heat. Together with the country’s remaining three coal power plants, it accounted for a mere 0.8% of the electricity mix last year, Coal-Free Finland and Beyond Fossil Fuels said.

Moreover, coal amounts to just 30% of fuel in Vaskiluoto 2. The facility mostly uses biomass. The operator of the Martinlaakso coal unit is eliminating fossil fuels from regular operations next year. The third one, Meri-Pori, is in strategic reserve.

Share of coal in Finland is marginal

Finland will retain reserve coal capacity for security of supply purposes, which can be deployed if necessary, Helen said. In addition, some energy companies use small amounts of coal in their energy production for peak, reserve and security of supply reasons, it added. The law forbids using coal in energy production after May 1, 2029.

Wind power output more than doubled in Finland since 2020, reaching a quarter of the total. At the same time, coal-fired generation plummeted 73% while fossil gas is down 82%, according to the report. “Finland has shown what’s possible when clear political signals are matched with rapid investments in renewable power,” said Deputy Campaign Director at Beyond Fossil Fuels Cyrille Cormier. The group called on the authorities to double down on renewables and clean flexibility.

Finnish energy experts can pull off impossible tasks

Helen delayed the closure of Salmisaari by a year. Coal still accounted for 64% of the company’s district heating supply in 2022!

The utility managed to slash its greenhouse gas emissions by more than 80% since 1990. It aims to reach 95% by the end of the decade.

“Helen giving up coal and, at the same time, foreign imported energy with regard to it, will remain a significant part of our country’s industrial history and shows that Finnish energy expertise enables actions that initially seemed impossible,” Chief Executive Officer Olli Sirkka said.

Helen transitioning to clean solutions

Helen is shifting to clean solutions. It enables operating more profitably with lower prices, the CEO pointed out. A range of facilities are under construction.

Heat production is mainly moving to heat pumps – utilizing waste and environmental heat – electric boilers, energy storage and sustainable biofuels. Helen will lean on wind, nuclear energy, hydropower and photovoltaics for electricity.

The new units in Salmisaari will be two electric boilers of a combined 100 MW, in combination with a heat pump of 33 MW in external capacity, as well as a 153 MW plant burning wood pellets. Helen is planning a 200 MW electric boiler facility of four units in Hanasaari, able to store 1 GWh of heat. It would currently be the biggest in Europe.

Helsinki has the ambition to reach climate neutrality by 2030, though including external offsets. It would eliminate them within the following ten years, which means only the city’s carbon sinks are included in the equation. The next step is turning carbon negative.

Market forces are decimating the remaining coal power capacity in Europe as it is expensive because of emissions rights and strict environmental regulations, as well as inflexible. Germany, Poland, Slovenia, the Czech Republic, Serbia, Montenegro, Bosnia and Herzegovina, Kosovo* and Turkey have the largest shares of coal in power production in the European Union and Southeastern Europe. Their phaseout deadlines are all after 2030, but the situation is changing fast.