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The smith-putnam turbine was 1941, and at any time since 1953 (or possibly 1906) one shippingport worth of investment into solar would have kick started the pv
by Schroedingersat 4y ago
The smith-putnam turbine was 1941, and at any time since 1953 (or possibly 1906) one shippingport worth of investment into solar would have kick started the pv industry, learning curves are a pretty consistent thing.
Zinc Bromide batteries are still competitive today, nickel iron aren't far off. Pumped hydro is centuries old.