There is lot of country-to-country variation here; while some countries like Netherlands are completely dependent on gas, others like Sweden barely use it at al

There is lot of country-to-country variation here; while some countries like Netherlands are completely dependent on gas, others like Sweden barely use it at all. On aggregate level gas is biggest source, but that is driven by few big consumers like Germany and Italy while in most EU countries gas is actually a minority energy source for heating.