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

Solar collectors cannot heat water at night, but you can solve this by using an insulated tank to store hot water during the day. Traditional water heaters run using gas or electricity and have ...

As well as monetary savings, you can also benefit from freedom and independence — no one can increase the price per kilowatt, and no matter what crazy energy crisis pops up, your water will stay hot .

San Diego-based Beam Global’s (Nasdaq: BEEM) new solar-powered BeamWell ... it turns seawater into fresh water, storing it in a built-in 3,000-liter tank that gets refilled daily.

solar or geothermal energy. However, gas and electric water heaters are by far the most common. Water is heated and stored in the tank of this type of water heater, also called a hot water heater.