Solar power is one of the most popular and sustainable energy sources in the world today. It harnesses the energy from the ...

Solar panels use photovoltaic cells that release electrons when sun shines on them. This creates an electrical current. Inverters turn it into useable power.

It is among the cheapest energy sources available, provided homeowners can get over the hump of the initial investment.

A confluence of lower-power appliances and devices using low-voltage external switch-mode supplies, readily available solar panels and electronic modules, and inexpensive high-capacity batteries ...

The rooftop solar business is a big source of consumer complaints. The industry is working to repair its reputation. Here’s how you can protect yourself.

Interested in a solar-power system to reduce your electricity bill? Here's how the whole business of converting sunlight to electricity works.