UK-based solar tech developer Naked Energy’s rooftop solar vacuum tubes, which produce both electricity and heat, will soon be sold in the United States. Peoria, Illinois-headquartered ELM Companies, ...

Solar photovoltaic cells and solar thermal collectors both capture the sun’s rays. The first one turns the light into electricity, while the other turns it into hot water for heating. They usually ...

Typically, if you want to convert solar energy into electrical energy, you use either photovoltaic (PV) cells, or you use the sunlight to create steam to turn a turbine. Both of these methods are well ...