Who owns the reliable information that the network bitcoin uses more than 80% of the countries separately electricity. Bitcoin also multiplied by several times the amount of energy consumed in the last year. Is this really true, who will say? So there are thoughts that bitcoin in a couple of years will be a threat to the energy situation on the planet?
Its hard to make precise calculation because every country have different electricity tariff. Miner in china have different cost with miner from europe because electricity in china cheaper. But i dont believe bitcoin network use more than 80% of the country separately electricity