Solar panels on a newly built passive house in Oldenburg, Lower Saxony, Germany.

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A passive house is a building in which a comfortable interior climate can be maintained without the need for conventional heating system. European law states the annual heating requirement in a passive house must be less than 15 kilowatt hours per square meter of living space per year. Passive houses are thus extremely effcient in terms of energy consumption while at the same time providing very high levels of comfort.

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Size: 5128px × 3433px
Location: Oldenburg, Lower Saxony, Germany.
Photo credit: © Clynt Garnham Renewable Energy / Alamy / Afripics
License: Licensed
Model Released: No

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