Energy & Green Tech

Good news for rooftop solar, not for home batteries

The energy produced over the lifetime of typical rooftop solar panels more than makes up for the energy it takes to make, mount and then eventually recycle them. But adding a home battery usually lowers those dividends, according ...

Energy & Green Tech

How greener grids can stay lit

Californians love renewable energy. In fact, California just became the first state to require solar panels on all new homes.

Energy & Green Tech

Insect eyes inspire new solar cell design

Packing tiny solar cells together, like micro-lenses in the compound eye of an insect, could pave the way to a new generation of advanced photovoltaics, say Stanford University scientists.