[rb12345]

The thing is though that 40% of the German gas supply comes from Russia at the moment. That means that if you can eliminate the 15% used for electricity, you've reduced the demand for Russian gas by about 38%. Put that way, reopening the newly shut nuclear plants makes a lot of sense. Refuelling and starting an existing power plant should be far quicker than building a brand new power plant or wind farm. You'll still have a lot of demand for gas from heating, but the warm winter and arrival of spring should reduce that too in the next few months.

Longer term, you are right about the need for more heat pumps to replace gas heating, and I'd also add extra insulation to that to reduce the heating needed from any source. The heat pumps can be powered by nuclear, renewables or gas depending on cost and preference.