Contact our Experts

If you live, own a business, or install solar thermal systems in the San Diego Region (SDG&E), feel free to email us at or call 858-244-1177

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Questions in Other Service Territories?

While CSE administers the CSI-Thermal Program for SDG&E, the other investor-owned utilities administer the program in their respective territories. If you have questions about projects in one of their service territories, please contact them directly.

Pacific Gas and Electric (PG&E)
(877) 743-4112

Southern California Gas Company
(800) Gas-2000

Southern California Edison
(866) 584-7436

Customer Service