It’s still not earning you money to spend electricity because you still have to pay the transfer fee which is around 6 cents / kWh but it’s pretty damn cheap nevertheless, mostly because of the excess in wind energy.
Last winter because of a mistake it dropped down to negative 50 cents / kWh for few hours, averaging negative 20 cents for the entire day. People were literally earning money by spending electricity. Some were running electric heaters outside in the middle of the winter.
The only thing I’m curious about in terms of using waste as energy source is how much it costs. If we can build reactors that have a good efficiency and don’t cost too much its great. However if it costs way to much it isn’t really useful even if the Idea of reducing our waste is good, since ain’t anyone is paying for it if you can much cheaper renewable energy.