Then how are they planning to supply the electricity for electric cars in future, if they cannot even supply sufficient electricity for some small heaters? An electric heater usually consumes 2000 Watt, that is not really something that should bring the electric grid to its knees.

By producing more energy, having less cars, better insulated houses, ... It's been calculated and described a thousand times by now by various institutes how this can be done. But obviously this can't be done in a few months, after the previous governments ignored experts for years.

> An electric heater usually consumes 2000 Watt, that is not really something that should bring the electric grid to its knees.

That's an additional 40GW when all gas-heated apartments use one of those heaters. You'd need ~30 additional nuclear reactors to sustain such a load -- the 3 remaining ones in Germany provide 1.4GW each.

Germany also uses electric stoves for cooking more than gas. An electric stove uses 2000-5000W. The grid handles everyone turning on their stove around the same times fine. Maybe heaters will have to run on top of that, but likely most won't have their space heater running while also cooking.

What are you talking about? The reason why electric stoves don't bring the grid down is because it is designed with this load in mind. Adding electric heating to the grid is an additional load, because people won't stop cooking when it's cold, nor would they stop heating if they're hungry.

That's why experts are warning people to not suddenly switch from gas to electric heating this winter.