Happens all the time here Doug, parts of Scotland produced 163% of their energy needs in just a few weeks during some very windy weather. The wind farms were paid almost £1M in total to stop producing energy! Maybe with home battery storage systems, we'll be able to store it up soon and use it when we need it. Germany produced so much solar in May, the price dropped to -130 Euros PMWH, yes MINUS. In Chile, electricity was free for 113 days in a row.
P.s. you direct a lot towards me, you're not a passive anti-diesel head are you?