The sun’s energy can be increased when focused on a smaller area—just ask any kid who has burned holes in a sheet of paper with a magnifying glass. The same concept has been used for small camping ...

Humans have harnessed the sun's energy for heat and light in various ways for centuries. From housing designs featuring thermal mass heated by the sun, to solar powered ovens and greenhouses, the ...

To make these solar panels, Indian companies need PV cells—which are the small parts that convert sunlight into electricity. Since India doesn’t yet make enough of these cells on its own, it is ...

The secretary of the Department of Energy made this statement on Sept. 2 concerning a solar-energy incident: “Even if you wrapped the entire planet in a solar panel, you would only be producing 20% of ...