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California Plug-In Solar Law (SB 868) Explained

California's SB 868, the "Plug Into the Sun Act," was signed in fall 2026 and takes effect on January 1, 2027. It lets Californians use small plug-in solar systems without utility permission or fees.

What SB 868 allows

• Up to 1,200 watts of combined AC output per home from plug-in solar devices.
• Connection through a standard outlet (receptacle), without the usual utility interconnection process.
• No utility fees or permission for qualifying devices.
• Certified equipment only — devices must be certified by UL or an equivalent nationally recognized testing laboratory.

Until January 1, 2027, existing utility rules still apply, so wait for the start date before connecting a kit to your home's wiring.

How much could a Californian save?

California has some of the highest electricity prices in the country — about 33¢ per kWh on average in early 2026 (EIA) — and plenty of sun, so plug-in solar pays back faster there than almost anywhere. Using state averages and assuming you use 80% of the power yourself:

• An 800 W kit on a south-facing balcony railing saves roughly $244 a year.
• A 1,200 W kit tilted toward the south saves roughly $522 a year.

Your savings depend on your utility, rate plan, shade and placement. Calculate yours.

Getting ready for January

1. Check your spot. A south-facing balcony, patio or yard with few shadows between about 10 am and 3 pm is ideal.
2. Size your kit to your daytime use with the kit size calculator — 1,200 W is the maximum.
3. Buy certified. Look for UL 3700 or an equivalent listing — see our certification guide.
4. Renters: check your lease and talk to your landlord about mounting on railings or walls.

Source: pv magazine USA. This is a plain-English summary, not legal advice. Read the law and your utility's guidance before installing.

Frequently asked questions

Last updated October 6, 2026.