| 摘要 |
The invention pertains to a hybrid roof covering element comprising a flexib le thin film solar cell sheet having a heat capacity of less than 3,5 kJ/m2K, preferably less than 600 J/m2K. Preferably, the flexible thin film solar cel l sheet has a response speed, defined as the change in temperature per unit of time per change in net flux, of more than 5,7*10~-4 K/W, preferably more tha n 11*10~-4 K/W. The use of a thin film solar cell sheet having such a low heat capacity makes it possible to obtain a hybrid roof covering element with a high response speed. Thin film solar cell sheets manufactured by means of a roll-to-roll process, more particularly a roll-to-roll process in which a temporary substrate is employed, are preferred for use in the hybrid roof covering element according to the invention. |
