While it does sound impressive, as stated in the article, Iceland has only 340,000 people. And almost all heating is done with geothermally heated water further

While it does sound impressive, as stated in the article, Iceland has only 340,000 people. And almost all heating is done with geothermally heated water further reducing residential electricity costs. Compared to the electricity of aluminum smelting business in Iceland, bitcoin very small (so far).