13 Mar '18, 4pm

How an energy-efficient house can become a big wind-powered battery

How an energy-efficient house can become a big wind-powered battery

Passivhaus or PassiveHouse buildings have a lot of insulation and lose heat very slowly; I have previously called them thermal batteries, speaking figuratively. But now Es Tressider of Lean Green Consulting and Highland Passive shows how PassiveHouse buildings could literally be batteries, storing wind power. Es simulated a 100m2 (1076SF) house designed to Passivhaus standards in Oban on the west cost of Scotland. The house would be heated by electric resistance or a heat pump. Two different houses were modelled; a lightweight timber design and a heavyweight masonry design with concrete floors. When the wind was blowing hard and the turbines were generating lots of power, he cranked up the model's virtual thermostat from 19°C (66.2°F) to 22° (71.6°F) It required a bit more energy in total, but it was all wind energy. © Dr. Es Tressider/ Red temperature lines indicate a per...

Full article: https://www.treehugger.com/renewable-energy/how-energy-ef...

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