It might be a better idea to idle some wind turbines and possibly save a bird or two rather than pay to get rid of excess power.
After all even if there is no cost for fuel there is OM cost, taxes, ware and tare on blades and generators.
Having spent 38 years in the electric power industry the idea of producing power when demand for it is not there is totally foreign.
We had dispatchers that were highly trained individual whose job it was to balance the the supply and demand for power.
If there was too much power on the grid they would be calling operators at one of the higher cost power plants to back down their production.
I’m trying to remember a call to the Nuc station control room asking for us to lower power
Turnover almost always had 100%……