Somewhere in the middle - the capital costs are $103/kWh - So, if you want to store 1 MWatt for 1 hour (Large Solar / Wind plant with variable sun/wind, and fix

Somewhere in the middle - the capital costs are $103/kWh - So, if you want to store 1 MWatt for 1 hour (Large Solar / Wind plant with variable sun/wind, and fixed size upstream transmission), it will cost you $103,000 fixed costs. OpEx is a function of maintenance, operation, life time, and duty-cycle of the plant.