http://redlib.bunny5exbgbp4sqe2h2rfq2brgrx3dhohdweonepzwfgumfyygb35wyd.onion/r/energy
New design heat pumps are also emerging out of labs. Coming nearer home.. cooking, baking with gas or electricity by conduction heating gets an efficiency of 60%, while induction heating yields over 90%. The scope list is endless.
When the world moves in that direction, there will be a time where we have an abundance of energy generation.