The dam only runs about 33% of the time so 8 hours a day and the batteries run nearly every day so just 3 months of additions is nearing half a grand coulee dam of electricity output. Or two Coulee dams a year in grid battery production.

The existing batteries in Texas and California have already delivered a coulee-dam-year (21TWh) so far in 2026.

I live in Texas and I've recently seen a number of wide load hauls of grid scale batteries. Not sure where they are coming from, but they were all heading out west. I assume to wind/solar to capture them when costs are low and balance the grid later. For Texas being the gas state, it is crazy how much renewable stuff I see moving around.