Just a week after reporting a peak of more than 90 percent renewable power, Agora now shows for the first time that green electricity may have briefly touched and slightly surpassed 100% of Germany’s electricity demand on May 15. Wind and solar cannot produce negative wholesale prices. Wind farms and solar arrays will never pay you to take electricity off their hands; they will simply curtail. Negative prices come from baseload power plants. They are the ones that would rather pay you to consume tha ramp down below their must-run level. So you have got to get rid of baseload if you want solar and wind.
Renew Economy 17th May 2016 read more »