Your hot shower or bath uses 15%–30% of your household's total energy, second only to the heating and cooling of air. More ...

Grid energy is expensive ... He hooked up solar panels to just the bottom heating element of his hot water heater. This cut his power bill in half. His calculator is now up at pvh20.com, and ...

The author uses a pump with a garden hose outlet to supply water to a mounted showerhead. Construct a simple, inexpensive rainwater shower system heated with an off-grid solar water heater.

Not every utility allows selling solar back to the grid ... 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 ...