There are so many reasons to go solar, and Earth Day only provides a convenient excuse. But still, it's a big deal that solar energy uses so little water.
On this Earth Day, we get a sneak peek at the Solar City and Tesla home solar plus energy storage offering that will turn the energy business on its ear.
A San Francisco-based startup's database details all the solar permits in more than 400 US cities and counties. It's a ground-level view of the solar boom.
A massive new study of 50,000 solar installations found them easily enduring the elements -- even natural disasters -- and still performing 10% better than expected.
Despite ample sunshine, Manitoba solar only barely exists; a lack of incentives has slowed its growth, though rising electricity costs means that could soon change.
This year (as well as the next two years) may mark a turning point for renewable energy in the US, as solar and wind grow -- and some incentives fall away).
A six-year study of California solar installations found the state's incentive program would be even better by giving away solar to low-income households.