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I've seen non-photovoltaic solar collectors that heat molten salt and then store it for off-peak use. I wonder if they could be hybridized with small modular M
by ortusdux 5y ago
I've seen non-photovoltaic solar collectors that heat molten salt and then store it for off-peak use. I wonder if they could be hybridized with small modular MSRs.
- ZeroGravitas 5y agoThose are no longer cost competitive with PV and batteries.
- DennisP 5y agoBut a lot of that is the cost of concentrated solar. On the PV side, batteries are not known for being especially cheap. Lazard puts the wholesale cost of PV plus four hours storage at 8 to 14 cents/kWh, as of 2020: https://www.lazard.com/perspective/levelized-cost-of-energy-levelized-cost-of-storage-and-levelized-cost-of-hydrogen-2020/ https://www.lazard.com/perspective/levelized-cost-of-energy-... And four hours storage is just what you need to shift peak daytime sun to peak evening demand. You need more to get through a windless night. To cover reduced supply on cloudy winter days you need some combination of overcapacity and long-duration storage, which typically involves some kind of turbine.
- ncmncm 5y agoBatteries are the most expensive storage. Storage cost is plummeting even faster than solar or wind ever did.