There are two types of passive solar water heaters: the integral collector-storage passive systems, which simply allows the sun to heat the water, at which point it flows into the household ...

An international research team has designed a novel cooling system for PV modules involving a phase change material (PCM), heat sink fins, and water. The experimental system utilizes passive ...

Passive systems rely on the thermosyphon ... professionally installed collectors and less-expensive DIY-friendly solar hot ...

Another technique uses moveable mirrors to focus the sun's rays on a collector ... solar technologies are passive. For example, big windows placed on the sunny side of a building allow sunlight to ...