Yesterday it was so windy near Edinburgh that the price of power went negative!
Why does the price go negative? Apparently because it costs more to slow the turbines than to let them spin and generate power. And it costs more to dump the power somewhere than to have customers use it.
This is a companion discussion topic for the original entry at https://johncarlosbaez.wordpress.com/2023/07/17/negative-prices-for-power/