Rialto, CA 92377 solar market data
Updated May 15, 2026 By The SolarDNA Data Team
Rialto 92377 has 2,573 solar installations at a median installed cost of $4.25/W, installations down 46.4% over the trailing twelve months, and a Market Score of 37 — higher than 17% of U.S. zip markets.
Versus California
How 92377 compares with the state
Installed cost
$0.01/W below
state median $4.26/W
Market score
37 vs 53
California scores 53
Share of state installs
0.11%
of 2.3M tracked statewide
Battery attach
31.7%
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: 163–221 installs (midpoint 192)
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
92377 by year
226 installs in the trailing twelve months vs 422 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 92377
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNNOVA ENERGY | 605 | 0 | 3.78 | $3.80 |
| 2 | SUNRUN | 391 | 52 | 7.93 | $4.24 |
| 3 | TESLA | 172 | 4 | 6.92 | $5.12 |
| 4 | BRIGHT OPS | 101 | 20 | 7.87 | $4.39 |
| 5 | G A F ENERGY | 81 | 75 | 3.7 | $9.95 |
| 6 | FREEDOM FOREVER | 73 | 6 | 8.3 | $4.42 |
| 7 | SUNGEVITY | 70 | 0 | 7.25 | $4.02 |
| 8 | SUNPOWER | 65 | 1 | 28.08 | $4.47 |
| 9 | SUNNOVA ENERGY CORPORATION | 53 | 5 | 3.61 | $5.48 |
| 10 | SUNCREST SOLAR | 40 | 0 | 5.9 | — |
| 11 | COMPLETE SOLAR | 36 | 0 | 7.56 | $3.94 |
| 12 | SEMPER SOLARIS | 33 | 2 | 8.13 | $4.86 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 92336 Fontana | 5.3 km | 12,279 | $4.22 | 48 |
| 92376 Rialto | 5.4 km | 4,279 | $4.45 | 45 |
| 92407 San Bernardino | 6.8 km | 5,147 | $3.88 | 51 |
| 92334 Fontana | 7.7 km | 11 | $4.49 | 37 |
| 92331 Fontana | 8.8 km | 8 | $6.45 | 28 |
| 92411 San Bernardino | 8.9 km | 979 | $4.64 | 33 |
Same city
Other zips in Rialto
Equipment
What gets installed in 92377
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA45.1%
LONGI GREEN ENERGY TECHNOLOGY7.6%
CSI SOLAR5.0%
TESLA4.4%
JA SOLAR3.2%
Inverters
ENPHASE ENERGY49.4%
SOLAREDGE31.4%
TESLA4.9%
ABB3.5%
SMA AMERICA2.4%
Frequently asked
Quick answers about 92377
How many solar installations are there in 92377?
SolarDNA counts 2,573 active solar installations in Rialto 92377, 2,539 of them residential, with data through May 15, 2026.
How much does solar cost in 92377?
The median residential system in 92377 cost $4.25 per watt over the trailing twelve months, $0.01/W below the California median.
Is solar growing in 92377?
Installations in 92377 are down 46.4%: 226 in the trailing twelve months versus 422 before.
Who installs solar in 92377?
SUNNOVA ENERGY, SUNRUN, TESLA lead the 266 installers with systems in 92377. The full comp set is above.
Is 92377 a good market for solar sales?
92377 scores 37 out of 100 (Fair, higher than 17% of U.S. zip markets).