As of April 1, 2025, Helsinki has officially shut down its last coal-fired power plant, Salmisaari, marking a major leap in its journey toward carbon neutrality. This move eliminates coal from the city’s energy mix and reduces local carbon emissions by 30% compared to the previous year.
This milestone follows the 2023 shutdown of the Hanasaari B plant, together bringing a total emission reduction of 43% to the city. On a national scale, these closures cut Finland’s CO₂ emissions by 5%, signaling the near-complete end of coal usage in the country.
Driven by its goal to reach carbon neutrality by 2030—two decades ahead of the EU target—Helsinki is transitioning to greener energy sources. District heating is now powered by a mix of electric boilers, large-scale heat pumps, energy storage, and sustainably sourced bioenergy. Helen Ltd, the city-owned energy utility, also generates electricity from wind, nuclear, hydro, and solar power.
Deputy Mayor Anni Sinnemäki emphasized that while this is a huge step forward, Helsinki remains committed to achieving net zero by 2040 and eventually becoming carbon negative.
Looking ahead, the city is also investing in clean hydrogen technologies. Helen’s 3H2 – Helsinki Hydrogen Hub pilot aims to begin production in 2026, tapping into Finland’s strengths in clean energy infrastructure and innovation.
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