Hartmut Murschall | Energy efficiency in North Rhine-Westphalia: political commitment and support
Since the late 1990s, North Rhine-Westphalia has supported the use of Passive House technology. Up to now, 3,700 residential units and various nonresidential buildings have been constructed in compliance with the Passive House Standard. Some 10,000 people now live in 150 solar and climate protection neighborhoods.
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