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Abstract

An installation for producing supplementary electrical energy for an electricity network includes at least first and second water reservoirs, the first water reservoir (311, 312) being situated at a first level and the second water reservoir (120) being situated at a second level lower than the first level, a communicating pipe (340) between the first water reservoir (311, 312) and the second water reservoir (120) being provided with a remote-controlled valve (350), and a hydro-electric generating system (330) being provided with a pumping installation. The first and/or second water reservoir (311, 312; 120) is integrated in the foundations in the lower portion of an artificial building (301, 303; 200A) that needs to be built for a primary function independently of a secondary function of producing electricity. The first water reservoir (315) or the second water reservoir (120) may constitute a common body of water in the vicinity of ground level. The water reservoirs (311, 312; 210; 220) integrated in foundations of buildings may in particular cooperate with installations for air-conditioning or heating the buildings at the base of which they are constructed, or associated buildings.

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First Claim