“The design, unveiled at the Offsite 2007 exhibition in Watford, meets rules to be applied in 2016 that aim to make UK homes more energy-efficient.”
“The home generates all its own energy – and when you’re away on holiday can send electricity back to the National Grid. The company says its annual energy bill would be £31, as compared to £500 for the standard new home of this size.” -BBC
First zero-emission home unveiled
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