Abstract: The invention relates to a hybrid solar collector that generates thermal and electrical energy while maintaining a comfortable indoor climate. The hybrid solar collector comprises a thermal energy collector for time-delayed transfer of thermal energy resulting from incident solar energy into building walls having a rear-vented cover arranged so that an air gap is formed between the solid collector portion and the cover, said cover comprising photovoltaic (PV) elements and being at least partially transparent and/or partially translucent so as to allow solar radiation to impinge on the solid thermal collector, wherein the air in the gap between the cover and the collector is sucked by a heat pump preferably for use in heating water or thermal storage The hybrid solar collector of the invention stores thermal energy in and releases thermal energy from the thermal collector portion, while also generating electricity using the PV elements and utilizing thermal energy from the heated air in the air gap.

Abstract: The invention relates to a hybrid solar collector that generates thermal and electrical energy while maintaining a comfortable indoor climate. The hybrid solar collector comprises a thermal energy collector for time-delayed transfer of thermal energy resulting from incident solar energy into building walls having a rear-vented cover arranged so that an air gap is formed between the solid collector portion and the cover, said cover comprising photovoltaic (PV) elements and being at least partially transparent and/or partially translucent so as to allow solar radiation to impinge on the solid thermal collector, wherein the air in the gap between the cover and the collector is sucked by a heat pump preferably for use in heating water or thermal storage The hybrid solar collector of the invention stores thermal energy in and releases thermal energy from the thermal collector portion, while also generating electricity using the PV elements and utilizing thermal energy from the heated air in the air gap.

Abstract: Heat insulations in houses having card-board lattice arranged behind a glass pane yield, in practice, a heat flow which is dependent on insolation. Said heat flow is lower at night and during weak insolation and begins to increase when the lattice is solar heated. The inventive solar cell (1) comprises a lattice (5) which is situated behind a rear-ventilated glass pane (2) and which exhibits durable storage properties. The solar cells characterize a solar energy yield (v′) by an arrangement which selects for an angle of incidence. Said solar energy yield does not lead to overheating in the room interior (R) also when the sun is at a high position. A thermal time constant is obtained by means of heat insulations (11, 12, 13) which are connected in succession. Said time constant guarantees comfortable temperatures in the interior (R) of the house also in the case of low supplementary heating.