There's also the Bill Gates-backed solar-concentrator tech that came out of stealth mode a couple of years back... https://edition.cnn.com/2019/11/19/business/

There's also the Bill Gates-backed solar-concentrator tech that came out of stealth mode a couple of years back... https://edition.cnn.com/2019/11/19/business/heliogen-solar-energy-bill-gates/index.html https://edition.cnn.com/2019/11/19/business/heliogen-solar-e...