Use alternate sources of water until the power is restored. Gas Appliances may not work if the electricity is off because the equipment may require electricity for ignition or valve operation. Electric Water Heaters that are drained to prevent damage from freezing must have their power circuit shut off as well. Failure to do so could result in loss of the heating element when power is restored. Never turn on a water heater unless the tank is full.
Plumbing can freeze when power is lost during cold weather periods.
Drain pumps, supply lines, water heaters, boilers, and traps in drains of tubs, sinks, commodes, washing machines, and dishwashers. To avoid major flooding when temperatures rise, turn off supply lines to outside spigots. You should have a contingency plan that always includes an alternate power source for the device and relocating the person. Trees are the primary cause of power outages in Milwaukee County. Power companies have regularly scheduled programs for trimming trees.