Earlier quoted context omitted.
I question your assumptions about grid storage. The cost of storage has been plummeting alongside the cost of solar, and battery lifespans are a non-issue when capacity is not a factor. A battery storage facility that has lost 30% of its capacity after 10 years of operation is still functional with that lower capacity. Compare this to something like a car that has much more limited function with a lowered capacity.
Ok, but why then, if storage is not a big problem of solar power, the US has 179 gigawatts of installed solar capacity with rated power of all grid storage on the US grid being 31.6 GW, of that only 4.8 GW being battery storage. [2] [1] https://en.wikipedia.org/wiki/Solar_power_in_the_United_Stat... [2] https://css.umich.edu/publications/factsheets/energy/us-grid...
And Pumped hydro is great wherever it's possible, don't see why it needs to be pitted against BESS.