About Solar Water Heating

Using Energy from the Sun

The Earth receives more energy from the sun in just one hour than the entire population of the planet uses in a year. Sunlight helps to power life on our planet with energy that is clean, abundant and reliable. Using solar energy for heating your home’s water is a natural way to conserve resources and protect the environment.

How Solar Water Heating Works

Solar water heating is a companion system that works in conjunction with your current water heater to collect energy from the sun to preheat water for sinks, showers, baths, dishwashers and washing machines. Heat is collected from the sun and transferred into a storage tank. Your conventional water heater then draws the heated water out of solar storage—and boosts the temperature, if necessary—when there is a demand for hot water. Using the sun this way reduces the amount of conventional energy that is needed to heat your water.

The Benefits of Solar Water Heating

When you use a solar water heating system, you can:

  • Conserve energy
    Solar water heating reduces the amount of energy used to heat your water. This not only helps to conserve natural resources—it can be a cost-effective way to generate hot water for your home.
  • Reduce your carbon footprint
    A solar water heating system can significantly reduce your home’s carbon dioxide emissions, which trap heat in our atmosphere and contribute to the greenhouse effect.
  • Increase the value of your home
    Solar water heating systems can increase the resale value of your home. Often, the entire installation cost of the system can be recovered when you sell your property.

Solar Water Heating Kit

  • This FREE Solar Water Heating Kit provides the tools you need to understand what Solar Water Heating can do for you, what rebates are available and how to
    find a contractor to get started today!

Contractor Resources

  • Information and resources for contractors to ensure a successful installation.
    Learn more>>

Go Solar California

Contact Us

  • E-mail:

    Solar Customer Service Center 1-877-743-4112

  • PG&E Customers Connections Online