I understand. Here we do have heating delivered by heating pipes. Heat comes from local energy plants.
We dont have caves though but storing heat underground should be doable i assume
It just feels silly to spend money on not making electricity instead of spending money on storing even just some of it in any kind of energy form.
My theory is that energy is still seen at as a resource instead of a flow. We won't run out of wind energy. We will only get more and more of it. We shouldn't care quite as much on how effectively we can convert or store it imo