The Gemini house is a prototype design for a house that uses solar energy and efficient design.

This article relies excessively on references to primary sources. (November 2010)

Roland Mösl wrote the house's concept in autumn 1991. The name expresses a design goal: The real estate used should serve two purposes simultaneously -- living and generating solar electricity. Ten years later, in 2001, the (up to now) only prototype was built in Weiz, a small town north of Graz in Austria as part of a national exhibition about energy. The cylindric house rotates to follow the sun. It is equipped with up to 150m² of photovoltaic panels. Extreme thermal insulation and heat recovery from waste air are also included.

• Web site of the GEMINI house in German

47°13′09″N 15°37′31″E

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