I did not mean to say that producers were doing this intentionally. Energy storage entities would only really profit in extreme circumstances where the prices

I did not mean to say that producers were doing this intentionally. Energy storage entities would only really profit in extreme circumstances where the prices are driven up so high - where production has decreased to the point where the grid is in danger of destabilizing. The rest of the time they'd be operating in the margins, picking up the solar and wind excesses to sell later. Given the investment and operating costs (battery farms, taking over hydro (or constructing new hydro), etc), I doubt it would be worth picking up given the current incentives.