I recall that there are some folks researching into ways that they can either use the heat or generate some additional electricity from the mining heat by-product.
I have had some discussions with power station engineers. The crux of it is that low grade heat (anything that is not hot enough to boil water) is considered a waste product and dumped to the atmosphere. And these are fancy, high efficiency co-gen plants.
So it seems pretty unlikely that they will be able to generate electricity if not producing over 100 C (which I assume not).
My information is about 8 years old so it is possibly out of date.
In theory it could be used in a preheating (to around 50 centigrade) stage of a larger process... but yes electric heating is dumb, inefficient and probably not really worth it to integrate in a power generation plant.
It would maybe make some sense in some very cold places where the heat could perhaps be used for central heating though.
Yes...even though many of us likely realize that heat generation is going to come in handy in really cold locations; however, it seems that your preheating idea has to be worth something, even if such preheating is not bringing the temperature to an actual boil (that generates steam with some the current powerful electricity generation methods)... and I suppose that part of my point is that if there is ongoing research into such lower heat thresholds, there could be ways to generate energy with temperature thresholds that are below boiling
- I feel like I am devolving from BTC price speculation down to random brainstorming regarding energy generation speculation with little to no grounding.