New Scientist (13 April 2013, p 30-33) reports a number of related initiatives based on ground-source heat pumps. The Vancouver Olympic Village meets 70% of space and water heating needs from heat pumped from untreated sewage whilst in Helsinki ground-source heat warms 93% of the city's heated spaces.
The UK, as always, drags behind with only 172,000 homes are warmed this way even though half the country's heat load is in areas where district heating would be viable.
Lots of opportunities then.
Friday, 26 April 2013
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