[danhor]

(all numbers for germany) Only ~14% of gas used is used for electrical energy. About 50% of the gas we use is imported from russia. 77% of the gas is used by households for heating (and also cooking, but that's negliable) and industry

To not depend on russian gas by reducing gas usage, the gas heating systems need to be replaced with heat pumps or something else and industry needs to shift, presumably to electricity (since it's unlikely that we have enough green hydrogen that's not produced from fossil fuels without depending on russia). This isn't going to be easy and unlikely to happen at a large enough scale in the next 5 years.