this post was submitted on 03 Sep 2024
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I guess this is cool, but even though it's an efficient heat pump it's still a poor use of electricity. It would make more sense to use cogeneration, to use the incidental heat from a thermal power plant, for district heating.
It looks like this is what they currently do. I believe the goal is to retire some of these older district heating systems and just use renewables for electric generation. https://www.helen.fi/tietoa-meista/energia/energiantuotanto/voimalaitokset In the short term they can shut down some of the gas/coal/pellet thermal centers without needing to build a new generator.
And Helen is also pulling heat from waste water. The latest heat pump was just the next logical step.