It's the other way around. Without wind and solar, Germany would produce a lot more CO2 than it produces today. If you come from a situation where most electri

It's the other way around. Without wind and solar, Germany would produce a lot more CO2 than it produces today. If you come from a situation where most electricity is generated from fossil fuel, with a bit of nuclear, than installing a bit of solar and wind trivially reduces CO2. Wind on the North Sea can trivially take 50% of all required electricity production. It is the end game that is hard. With just solar and wind you can't go down to zero CO2 emission. That said, it is not clear that you can go to zero CO2 with just nuclear. Unless you are massively overbuilding nuclear to deal with peakload. The current problem is that no government has proposed a timeline when fossil fuel will be more expensive than storage (or than nuclear mixed with wind). As long as fossil fuel is cheap, we will only see solar and wind, because those are currently cheaper than fossil.