Installing solar power ... Effectively the water heater becomes another type of battery in [Rogan]’s home, capable of storing energy at least for the day in the form of hot water.

Solar water heaters have become an increasingly popular choice for homeowners and businesses looking to reduce energy costs ...

Looking for a simpler solution [Martin] came up with his own solar pool heater for under $100 ... Combine this with a compost-based hot water system for indoors and you’ll really be cutting ...