On: Storehouses for Solar Energy Can Step In When the Sun Goes Down

[slyall]

As the article says they are betting that with all the other solar capacity going online the peak price (demand vs supply gap) will be late afternoon early even when demand is still high but there is little/no sun.

I assume you mean $200/megawatt-hour which is close to the numbers I get. I guess they are assuming the peak-premium plus the renewable requirements will offset the premium price. They probably have a longer payback period too.

[philipmorg → slyall]

I do mean megawatt-hours.

I don't know what the normal payback period is for generation infrastructure, maybe 15 years or so is not that unusual.