It's common out west to sell electricity back to utility cooperatives when the private owner has wind and/or solar on their property that creates more than they can use. While the energy sold back to the cooperatives is measurable, just like usage, I wonder how much is wasted collection at non-peak periods (without appreciable storage ability). The article touches on this aspect. I'm guessing the sell-back price isn't the same as the utility price. another problem for Elon Musk to save us from...
