“Secretive energy startup backed by Bill Gates achieves solar breakthrough”
November 19, 2019
“Heliogen, a clean energy company that emerged from stealth mode on Tuesday, said it has discovered a way to use artificial intelligence and a field of mirrors to reflect so much sunlight that it generates extreme heat above 1,000 degrees Celsius…
Essentially, Heliogen created a solar oven… The breakthrough means that, for the first time, concentrated solar energy can be used to create the extreme heat required to make cement, steel, glass and other industrial processes. In other words, carbon-free sunlight can replace fossil fuels in a heavy carbon-emitting corner of the economy that has been untouched by the clean energy revolution…”
https://www.cnn.com/2019/11/19/business/heliogen-solar-energy-bill-gates/index.html