Service Areas · California
Solar installation across California.
ETW Energy installs solar and battery storage for homes across California, from design through activation. California’s NEM 3.0 rules changed solar economics significantly — and getting the design right now depends heavily on your utility.
With some of the highest electricity rates in the country, California homeowners have a lot to gain from solar designed correctly for the current rules — which increasingly means solar paired with storage.
The California solar landscape
Under NEM 3.0, California’s investor-owned utilities — PG&E, SDG&E, and Southern California Edison — credit exported solar at a much lower value than before. The economics now favor storing your production in a battery and using it yourself, especially in the high-rate evening hours, which is why we design most California systems as solar-plus-storage.
There’s an important exception: municipal utilities like LADWP, which serves much of Los Angeles, run their own net-metering programs and are not governed by NEM 3.0. The first step is always confirming which utility serves your address, because it changes the entire design.
California metros we serve
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Solar in California — common questions
Do I need a battery to go solar in California now?
Under NEM 3.0, usually yes. Exported solar is credited at a low value, so storing your production in a battery and using it yourself is where the return comes from. A solar-only system captures much less.
Does NEM 3.0 apply everywhere in California?
No — it applies to the investor-owned utilities (PG&E, SDG&E, SCE). Municipal utilities such as LADWP run their own net-metering programs and may not follow NEM 3.0. We confirm your utility before designing.
Paying for solar in California
How you pay shapes your return as much as the system does. Compare cash, a loan, a prepaid lease that lowers your upfront cost, or a $0-down lease or PPA — with a straight answer on the 2026 tax-credit reality — on our solar financing page.
Solar built on trust — in California.
Tell us about your home and your utility. We’ll give you a straight answer about what solar will do for you here — no pressure.
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