PHOTOVOLTAIC DEVICE Russian patent published in 2012 - IPC H01L31/58 

FIELD: physics.

SUBSTANCE: photovoltaic device (10) having flat photovoltaic cells (12) which, when solar radiation (S) falls on the upper side, generate electric power which is transmitted into an electric network (14) and/or to an electric accumulator, characterised by that under each photovoltaic cell (12), there is a cooling battery (20), which is linked through the circulation loop of a heat pump with a first heat pump, wherein the cooling battery (20) feeds process heat, released during operation of the photovoltaic cell (12), to the first heat pump; the first heat pump is linked to the first circulation loop (22) for circulating carrier medium containing a first carrier medium; in the first circulation loop (22) for circulating the carrier medium there is a heat-accumulating unit (24) containing a heat-accumulating medium, wherein heat energy of the first carrier medium inside the heat-accumulating unit (24) is transmitted by the heat-accumulating medium, and at least one other circulation loop (30) of the heat consumer, which contains a second carrier medium, is linked with the heat-accumulating unit (24), and heat energy of the heat-accumulating medium, if needed, is transmitted to the second carrier medium of said other circulation loop (30) of the heat consumer.

EFFECT: improved efficiency of the photovoltaic device.

7 cl, 2 dwg