> But you can't run the grid on 50% renewables without solving storage.
Counter-example: Brazil's national grid routinely runs on over 85% renewables with essentially zero storage (there might be a couple of experimental battery storage units, but if any they're much less than 1%; and all it has of pumped hydro storage is one partial preliminary study of possible locations).
Counter-example: Brazil's national grid routinely runs on over 85% renewables with essentially zero storage (there might be a couple of experimental battery storage units, but if any they're much less than 1%; and all it has of pumped hydro storage is one partial preliminary study of possible locations).