>Heating the equivalent of 1 gallon of water from -60°F to a reasonable liquid distribution temperature (50°F) means heating it up by a whopping 110°F. That’s 268 watt-hours of raw energy required just to bring a single gallon of water up to distribution temperature!
It's actually more than this, because the phase change from solid to liquid takes a lot of energy too.
It's actually more than this, because the phase change from solid to liquid takes a lot of energy too.