Is balcony solar legal in California?
Soon. California's plug-in solar law takes effect January 1, 2027.
Up to 1,200 W AC per dwelling. Signed September 30, 2026. Expected to take effect January 1, 2027, the standard date for new California statutes.
- Size limit
- 1,200 W
- Utility notice
- Online registration may be required
- Electricity price
- 32.6¢/kWh
- 800 W kit payback
- 2.7 years
The law at a glance
| Status | Signed, not yet in effect |
|---|---|
| Bill | SB 868, Plug and Play Solar Act |
| Signed | September 30, 2026 |
| Effective | January 1, 2027 (expected) |
| Size limit | Up to 1,200 W AC per dwelling |
| Certification | Certified as plug-in PV by UL or an equivalent nationally recognized lab, and compliant with the National and California Electrical Codes. |
What your utility can and can't require
- Utilities cannot charge fees or require approval.
- Utilities may require a simple online registration listing address, make, model and size.
Renters, landlords and HOAs
- The act does not override leases or HOA rules, so a lease that bars balcony fixtures still applies.
- Local building and fire rules still apply.
What we could not confirm. Confirm details against the chaptered text on leginfo.legislature.ca.gov once published.
What a balcony kit would save in California
California's average residential price was 32.6¢ per kWh for January–August 2026, above the US average of 18.2¢ and up 5% from the same months of 2025 (EIA). That ranks 2 of 51 for price.
| 800 W kit, $700 | kWh per year | Savings per year | Payback |
|---|---|---|---|
| Hanging on a south-facing railing | 929 | $258 | 2.7 years |
| Hanging on an east- or west-facing railing | 734 | $223 | 3.1 years |
| Tilted 35° on a stand, facing south | 1473 | $347 | 2.0 years |
Assumes a 300 W always-on household load and 6.08 peak sun hours (NREL data for California's largest city). How we calculate.
Before you buy
- Confirm the law is in effect on the day you plan to install.
- Choose a kit certified to the standard California names. See UL 3700 explained.
- Check your lease or HOA rules. See renters and HOAs.
- Pick an outlet on a circuit without heavy loads. See safety.
- Send your utility any required notice before plugging in.
Common questions
Is plug-in solar legal in California?
Soon. California's plug-in solar law takes effect January 1, 2027. Up to 1,200 W AC per dwelling. Signed September 30, 2026. Expected to take effect January 1, 2027, the standard date for new California statutes. Status checked October 29, 2026.
What is the wattage limit for balcony solar in California?
Up to 1,200 W AC per dwelling.
Do I need to tell my utility in California?
Utilities cannot charge fees or require approval. Utilities may require a simple online registration listing address, make, model and size.
Can renters install balcony solar in California?
The act does not override leases or HOA rules, so a lease that bars balcony fixtures still applies. Local building and fire rules still apply.
How much would balcony solar save in California?
At California's average residential price of 32.6¢/kWh, an 800 W kit hanging on a south-facing railing would save about $258 a year in our model, paying back a $700 kit in about 2.7 years. East- or west-facing railings save about $223.
Sources for California
- Office of Governor Newsom: legislative update (Sep 30, 2026) Government
- NRG Clean Power: what SB 868 changes Reporting
- r/bayarea discussion of SB 868 and renters Reporting
- U.S. EIA, Electric Power Monthly, Table 5.6.B (YTD through August 2026) Government
- Peak sun hours by state (NREL PVWatts v8, 20° tilt, largest city), TheGreenWatt Tracker
Found something out of date? Email hiruben@gmail.com. We log fixes on the corrections page. This page is general information, not legal advice.