This is a clever use of nanocoated quicklime to store and release heat on demand at an industrial level. It will be interesting to see how this test project develops.
https://www.apnews.com/bc43ae5cbbed4c459a543b6fd4b5ee7b
https://www.apnews.com/bc43ae5cbbed4c459a543b6fd4b5ee7b