Often, heaters are set at 170 degrees at the factory. They should both be set back to 120 degrees. Insulate your tank. Valuable heat loss occurs in many hot water heaters because the manufacturer does not do a good job of insulating. Many hot water heaters are sold with only a minimum amount of insulation.
Electric heaters are very high users of electricity.
We have found several refrigerators and freezers that were causing problems for people. They did not cycle properly. Several of these older units caused a large increase in their owners' bills. In the summer, Kotzebue can be quite dusty. This dust will accumulate and can eventually insulate the cooling fins so that the refrigerator or freezer cannot rid itself of heat.