SAVE WITH SOLAR WATER HEATING

Solar water heating is one of the best ways to save money on water heating, while drastically reducing your home’s or business’s carbon footprint and environmental impact.

Through the California Solar Initiative - Thermal Program, rebates are available for San Diego Gas & Electric customers who install solar water heating systems. The Center for Sustainable Energy manages the CSI-Thermal Program for the SDG&E service territory. This program is ratepayer funded and open to customers of the large California investor-owned utilities.

What is Solar Water Heating?

A solar water heating system captures the warmth of the sun and uses it to heat water for your home, business or multifamily property. Unlike solar photovoltaic (PV) systems that collect sunlight and convert it into electricity, solar water heating systems simply absorb the sun’s heat and transfer it to your hot water supply. With solar water heating, you can reduce your energy consumption and utility bills without sacrificing comfort or reliability – even on cloudy days and nights, the system works with your existing water heater so that you have hot water 24 hours a day, seven days a week.

How Does Solar Water Heating Work?

A solar water heating (SWH) system works in conjunction with your existing water heater or boiler to essentially preheat water before it enters the existing tank. Current systems can be used in conjunction with natural gas, electric or propane backup water heaters and boilers and even with tankless water heaters as long as the solar water heating system is compatible.

Inside Solar Thermal Systems