solar powered

Research firm Strategy Analytics projects that global installations of concentrated photovoltaic technologies, which use lenses, mirrors or other optics to concentrate sunlight and direct it in to solar cells, will nearly triple every year for the next four years.

The little everyday expenses in life -- coffee and snacks -- can quickly add up but so do the big costs. So while cutting out that daily latte may help your day-to-day expenses, cutting the cable service or a telephone line can mean hundreds or even thousands of dollars in savings. Granted, it...

Two start-ups, biofuel maker Codexis and solar-energy firm Solyndra, recently filed, and others are rumored to be doing so, including sexy electric-car company Tesla Motors and smart-grid integrated-technology maker Silver Spring Networks.

If you've ever thought about how much money you'd save on your electricity bill by installing solar power, but didn't want to go through the hassle of getting an estimate, here's an easy solution to find out on your own.RoofRay has a beta program that uses Google Maps to let homeowners figure out...