Tustin, CA 92780 solar market data
Updated May 5, 2026 By The SolarDNA Data Team
Tustin 92780 has 1,606 solar installations at a median installed cost of $4.09/W, installations up 87.4% over the trailing twelve months, and a Market Score of 60 — higher than 99% of U.S. zip markets.
Zip Market Score
Excellent · higher than 99% of zips
Versus California
How 92780 compares with the state
Installed cost
$0.18/W below
state median $4.26/W
Market score
60 vs 53
California scores 53
Share of state installs
0.07%
of 2.3M tracked statewide
Battery attach
17.9%
state 12.7%
Statewide momentum
▲ 1.1%
residential solar added in California, 12 months through Jul 2026
Statewide market
2.3M systems
30.9% of homes · utility-reported through Jul 2026
Next-12-month outlook: 159–215 installs (midpoint 187)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±15% band. Not a forecast of permits or policy.
Growth & pricing
92780 by year
163 installs in the trailing twelve months vs 87 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 92780
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 213 | 56 | 6.63 | $3.90 |
| 2 | TESLA | 200 | 10 | 6.63 | $5.10 |
| 3 | PEAK POWER SOLUTIONS | 72 | 6 | 6.69 | $4.37 |
| 4 | SUNPOWER | 41 | 2 | 7.02 | $4.56 |
| 5 | ORANGE COUNTY CONTRACTING SERVICES | 37 | 8 | 8.33 | $3.27 |
| 6 | BRIGHT OPS | 35 | 10 | 8.05 | $4.94 |
| 7 | FREEDOM FOREVER | 35 | 5 | 8.8 | $3.92 |
| 8 | VERENGO | 33 | 0 | 5.7 | $4.92 |
| 9 | INFINITY ELECTRIC | 25 | 0 | 7.12 | $3.15 |
| 10 | SOLAR OPTIMUM DESIGN ELECTRIC | 25 | 0 | 8.13 | $3.11 |
| 11 | SEMPER SOLARIS | 22 | 0 | 6.45 | $4.76 |
| 12 | SUNGEVITY | 22 | 0 | 6.42 | $3.86 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 92782 Tustin | 3.3 km | 1,651 | $4.25 | 39 |
| 92701 Santa Ana | 3.4 km | 591 | $3.87 | 56 |
| 92705 Santa Ana | 3.5 km | 2,917 | $4.11 | 62 |
| 92711 Santa Ana | 3.8 km | 7 | $8.99 | 28 |
| 92606 Irvine | 4.6 km | 622 | $3.78 | 56 |
| 92707 Santa Ana | 5.3 km | 920 | $4.67 | 40 |
Same city
Other zips in Tustin
Equipment
What gets installed in 92780
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA22.7%
SUNPOWER8.2%
LG ELECTRONICS8.0%
REC GROUP6.7%
CSI SOLAR4.9%
Inverters
ENPHASE ENERGY38.4%
SOLAREDGE27.7%
SUNPOWER6.0%
TESLA6.0%
SMA AMERICA5.1%
Frequently asked
Quick answers about 92780
How many solar installations are there in 92780?
SolarDNA counts 1,606 active solar installations in Tustin 92780, 1,522 of them residential, with data through May 5, 2026.
How much does solar cost in 92780?
The median residential system in 92780 cost $4.09 per watt over the trailing twelve months, $0.18/W below the California median.
Is solar growing in 92780?
Installations in 92780 are up 87.4%: 163 in the trailing twelve months versus 87 before.
Who installs solar in 92780?
SUNRUN, TESLA, PEAK POWER SOLUTIONS lead the 339 installers with systems in 92780. The full comp set is above.
Is 92780 a good market for solar sales?
92780 scores 60 out of 100 (Excellent, higher than 99% of U.S. zip markets).