utility battle solar water heating

Solar water heating requires a significant upfront investment, but once it is installed you no longer need to pay for heating the water. Installation includes a pump, plumbing through which the water circulates for exposure to the sun, and possibly large glass tanks for storing the hot water.

A tankless water heater has no storage tank and the water is heated as you need it. Heating water on demand is much less expensive than heating water and storing it until it is needed.