[myself248]

I loooove pumped hydro in theory, but it's so geographically finicky, you can't deploy it just anywhere. Particularly flat land, where the wind resource tends to be both plentiful and accessible...

But it's definitely one arrow in the quiver, and together there are solutions for just about any storage problem you can imagine.

Personally I think a big obvious shift is that EV chargers should be located in the places that the cars park during the day. The whole "charge at home overnight" thing is an unnecessary demand shift. Charge at work during the day, when the PV is producing like mad.

Even if the PV is on the roof at home and the power is getting shipped several miles over the grid to the office where the car is parked, it's still easier to move power over distance than to store it over time.

Of course PV on the roof at work would be even better, since commercial roofs tend to be broad and flat and boring. But it'll take quite a bit of forward thinking to unlock that cognitive step.

[ip26]

Wind peaks at night, and is cheaper.