Hydro output in Bonneville Power Admin has averaged 12GW this month, against last year's 10GW.
June output last year dropped off quickly, averaging below 9 GW. This year could dwarf that, with river levels high and forecasts for demand low in the West. Power will be moving south to California, and the little bit of gas fired burn that is still in the dispatch curve in CAISO will fade further unless heat moves in quickly.