When electricity is generated by burning fossil fuel or garbage, waste heat is fed to centralized heating systems. In this way efficiency of over 90% is achieve

When electricity is generated by burning fossil fuel or garbage, waste heat is fed to centralized heating systems. In this way efficiency of over 90% is achieved. Probably it's time for the next stage of this idea: electricity should be immediately fed to mining facility, which preheats water that goes to the furnace. In the end all computers are just hi-tech heaters.