China is tinkering with heliostats (mirrors used to collect solar energy) and think they've come up with an innovation, by using sand - rather than water - to get heated and provide the steam that can be used to provide energy.
Many countries have been playing with this concept over the years, but while
They have found success, the biggest problems were the amount of water required made it costly, and of course there was the cost to build and maintain it.
Arizona until recently had a similar sort of farm, but they announced it will be closing due to federal subsidies being withdrawn AND because the cost of more traditional solar has decreased to the point where its much more cost effective.
But, as always, I love to see innovation happening.
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