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You are proposing build 4 times the power generation: Renewables for the daytime load, Renewables for charging the night time storage, the night time storage, a
by XorNot 3y ago
You are proposing build 4 times the power generation: Renewables for the daytime load, Renewables for charging the night time storage, the night time storage, and then a whole extra set of power plants for emergency standby.
Why would hydrogen combustion plants - which don't exist at the moment, don't have turbines on the market, don't have a fuel supply pipeline - be cheaper then current coal fired powerplants?
So your cost of generation already is - at minimum - at least as expensive as a coal fired powerplant, in terms of fixed costs for maintenance (and investment - who's building these when they can't sell the power from them?)
- pfdietz 3y agoHydrogen combustion CC plants will certainly have a capital cost less than coal fired plants. They will be almost identical to natural gas fired CC plants (just the combustor will be different). These are known to be quite inexpensive, costing maybe $1/W. There need not be any fuel pipeline, since the plant can be built at the hydrogen storage site. The electrolysers will be there also. There have been industrial turbines that burn hydrogen for decades. It's not some sort of exotic technology. Yes, there are many parts here. And it's still cheaper than nuclear. Nuclear is pathetic in that way.