Solar photovoltaic (PV) technology has changed little since the energy crisis of the 1970s, but it’s finally getting cheaper. Large-scale rollouts of solar farms in Europe in the past few years have ...

PV is breaking new ground with a video series that reveals the entire process of making perovskite solar cells, from bare substrate to finished, tested modules. For the first time, viewers can see ...

At a recent solar energy trade show, the first thing anyone would note is that solar cells are cheaper than ever before. Perhaps second, is that solar vendors had all sorts of solar panels. There were ...

"You need to speak to several contractors before making a final selection," said Michael Trahan, a solar energy expert.

It's been nearly three years since Elon Musk unveiled Tesla's solar roof at a Hollywood event, and he still thinks it could turn into something big. But getting there hasn't been easy – and Tesla ...

Community solar projects allow subscribers to benefit from the renewable energy source even without installing solar panels. Old Hill Farms, in Yorktown, N.Y., produces enough solar energy to power ...

If you stop to think about it, it’s a marvel that we can harness energy from the sun. But we do, thanks to solar panels equipped with photovoltaic cells that convert sunlight to electricity. That’s no ...