In short
- 79 home solar permits were issued in Tarzana, Los Angeles in 2025, up 16% from 2024 (68).
- 30% of them included a battery.
Solar permits in Tarzana, Los Angeles by year
| Year | Solar permits | With a battery | Battery share | Battery-only permits |
|---|---|---|---|---|
| 2026 (through Sep 27) | 38 | 10 | 26% | 4 |
| 2025 | 79 | 24 | 30% | 9 |
| 2024 | 68 | 22 | 32% | 7 |
| 2023 | 87 | 20 | 23% | 10 |
| 2022 | 82 | 15 | 18% | 6 |
| 2021 | 109 | 22 | 20% | 8 |
| 2020 | 67 | 21 | 31% | 5 |
System sizes in Tarzana, Los Angeles
| Figure | Median | Middle half | Permits |
|---|---|---|---|
| Solar size | 12.0 kW | 7.2 kW – 16.9 kW | 231 |
| Battery size | 13.5 kWh | 13.0 kWh – 27.0 kWh | 21 |
Middle half: the range covering the middle 50% of records (a quarter were lower, a quarter higher).
How much a system here produces
Modeled for the San Fernando Valley climate, each kilowatt of south-facing panels makes about 1,690 kWh a year, so a median-size 12.0 kW system makes about 20,300 kWh a year. Source: PVWatts (National Laboratory of the Rockies), 20° tilt, 14% losses. Shade, roof direction and panel type change real output.
Your utility and solar billing
- LADWP: retail net metering (exports credited at your normal rate).
Questions about solar in Tarzana, Los Angeles
How many homes in Tarzana, Los Angeles have solar?
The City of LA issued 530 home solar permits in Tarzana, Los Angeles since 2020, including 79 in 2025. A permit means the work was approved; older systems from before the data starts aren't counted.
Do new solar homes in Tarzana, Los Angeles get batteries?
30% of the home solar permits issued in Tarzana, Los Angeles in 2025 included a battery.
Which utility serves Tarzana, Los Angeles?
Los Angeles Department of Water and Power (LADWP): retail net metering (exports credited at your normal rate).
About this data
- Counts are City of LA electrical permits for 1-or-2-family homes, by issue year: a permit means the work was approved, not that it finished. Revisions to an earlier permit aren't counted again.
- Solar sizes come from the permit's work description; batteries are found by keywords (battery, energy storage, Powerwall) because the data has no battery flag.
- LADBS doesn't record installer names or prices, so those figures aren't available for the City of LA.