Scientists Swapped a Toxic Chemical in Solar Cells For a Tofu Ingredient

Thin-film solar cells promise to bring flexible, low-profile solar power to all kinds of surfaces. Unfortunately, constructing thin-film panels requires cadmium chloride, a finicky, expensive, and toxic material. Now, University of Liverpool scientists have figured out how to make solar cells using magnesium chloride,… » 6/26/14 7:15pm 6/26/14 7:15pm

You Can Drive Over This Parking Lot Paved With Solar Panels

If you've scampered barefoot across asphalt on a sunny day, then you know driveways are already absorbing plenty of solar energy. What if we could actually harness it? Solar Roadways has created solar panels so strong you could drive a tractor right over them—plus they light up at night and heat to melt snow. » 5/09/14 2:20pm 5/09/14 2:20pm