Salmisaari CHP power plants by sunset in Helsinki, Finland. CHP = combined heat and power. The power plants of Salmisaari use mainly coal as a fuel. The plant has an electrostatic precipitator, an desulphurisation plant, and an ISO 14 000 certification. The efficiency of power plants with heat recovery rises up to 92 percents. The recovered heat is used in district heating.
<a href="//commons.wikimedia.org/wiki/User:P%C3%B6ll%C3%B6" title="User:Pöllö">Pöllö</a>
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<span class="int-own-work" lang="en">Own work</span>