Scientists in China have designed a solar self-insulated composite exterior wall panel, integrating a solar collector panel, ...

the Nakoair Solar Air Collector can pump air into the greenhouse 40 to 85 degrees warmer than the outdoor air. It has its own circulation pump powered by a PV panel incorporated into the device.

That’s because the power reduction was high in the case of the presence of four bird droppings on the PV panels (33% lower than cooled PV panel) which reduced the module efficiency markedly ...

Offering arguably better bandgap properties than traditional silicon cells, perovskite-based PV panels also promise to be cheaper and (literally) more flexible, but commercialization has been elusive.