I like saving money, but I’m more interested in the environmental benefits. What are they?
As mentioned elsewhere on the site. A conventional water heater uses the equivalent of 11 barrels of oil per year in energy. That adds up to about 10,000 pounds of C02 each and every year. Replacing your conventional system would have the same environmental benefit as selling your car and riding a bike everywhere. For passionate environmentalists, solar hot water is a case of “having your cake, and eating it too” when you also consider the economics.
