Comment Re:Phase out fossil-fueled power plants by midcent (Score 1) 308
The price of solar and wind construction is finally starting to get to parity with other energy forms and you tack on the expense and replacement cost of batteries, and probably patented designs that manufacturers will charge a fortune to use...
Your "2-5 years" is now pessimistically 22-25 years.
I'd put my money on mechanical storage in the short term (vacuum sealed flywheel). It is more lossy than battery storage, but for short term is cheap, gives on-demand energy, and well out of patent (though more efficient designs may be patented).