This startup says it has found a way to cut the cost of making solar cells in half

Leap Photovoltaic is working on a way to build solar panels without the use of silicon wafers, a hard-to-manufacture component that bottlenecks the solar production process. If it works, it could mean vastly expanding domestic solar production. Solar power is growing quickly, but it still makes up only around 3% of the world’s electricity production—and to address climate change, that number may need to grow to 60% or more. The supply chain is one of the factors limiting growth: Bottlenecks ...