World’s largest passive house area to be built

The city of Heidelberg in Germany has a new district: Bahnstadt. Almost all of its newly constructed buildings will consume only 15 kilowatt hours of heating per square metre.

Work will be completed on the new district by 2020, according to the web portal Wirtschaftswoche Green. Spread out over an area of 116 hectares, it will be home to 5,000 residents and provide room for 7,000 people to work. The Skylab, a collection of laboratory facilities, has already been completed. It features large windows to cut down on the use of artificial lighting.

The residential units, which are are still under construction, will largely use heat recovery from exhaust air. Whatever heating is still required will be generated from a central wood-burning power plant, derived exclusively from the region.

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