New eco standard for homes could save families up to 90 per cent on their energy bills, says Mayor

Adopting a new eco standard for homes in London could save families up to 90 per cent on their energy bills while reducing carbon emissions in the long run. Homes that meet the “Passivhaus” (passive house) standard – considered the gold standard for energy efficiency – are so well insulated and airtight that they remain cool in the summer and warm in the winter without much need for energy consuming heating systems.

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