Lake County, CA solar installation & market data
Updated May 11, 2026 By The SolarDNA Data Team
Lake County has 5,393 solar installations across 15 zip codes at a median installed cost of $4.42/W, installations down 22.3% over the trailing twelve months, and an installs-weighted Market Score of 39.
Active installations
5,393
Zip markets
15
Median cost
$4.42/W
12-mo growth
▼ 22.3%
Installers active
449
County Market Score
Good · installs-weighted across 15 zips
Best zip in Lake County scores higher than 56% of U.S. zip markets.
Versus California
How Lake County compares with the state
Installed cost
$0.16/W above
state median $4.26/W
Market score
39 vs 53
California scores 53
Share of state installs
0.24%
of 2.3M tracked statewide
Battery attach
15.0%
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: 294–368 installs (midpoint 331)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±11% band. Not a forecast of permits or policy.
Growth & pricing
Lake County by year
373 installs in the trailing twelve months vs 480 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Lake County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 621 | 10 | 12 | $5.12 |
| 2 | V3 ELECTRIC | 358 | 28 | 13 | $4.65 |
| 3 | JONAS ENERGY SOLUTIONS | 307 | 23 | 14 | $3.88 |
| 4 | BRIGHT OPS | 278 | 75 | 12 | $4.85 |
| 5 | FREEDOM FOREVER | 265 | 26 | 12 | $4.25 |
| 6 | SUNRUN | 250 | 39 | 10 | $4.38 |
| 7 | SUN FIRST | 171 | 4 | 11 | $4.69 |
| 8 | COMPLETE SOLAR | 145 | 1 | 12 | $4.30 |
| 9 | GOLD RUSH ENERGY SOLUTIONS | 140 | 0 | 14 | $3.85 |
| 10 | INFINITY ENERGY | 136 | 1 | 12 | $4.08 |
| 11 | HARMONY AIR | 115 | 4 | 13 | $3.42 |
| 12 | PETERSENDEAN | 91 | 0 | 13 | $3.74 |
| 13 | RGS ENERGY | 73 | 0 | 10 | $6.37 |
| 14 | SUNON ENERGY | 69 | 0 | 11 | $3.97 |
| 15 | 1ST LIGHT ENERGY | 65 | 0 | 7 | $3.91 |
| 16 | SOLAR SAVINGS DIRECT | 53 | 5 | 9 | $4.81 |
| 17 | BETTER EARTH | 53 | 0 | 12 | $5.07 |
| 18 | OHM SOLAR SOLUTIONS | 52 | 9 | 10 | $8.16 |
| 19 | TITAN SOLAR | 45 | 0 | 8 | $5.43 |
| 20 | GAIA ENERGY SYSTEMS | 43 | 0 | 8 | $6.57 |
| 21 | POWUR | 37 | 0 | 9 | $4.95 |
| 22 | GREEN DAY ELECTRIC | 36 | 0 | 9 | $4.72 |
| 23 | NORTHERN PACIFIC POWER | 33 | 0 | 8 | $4.02 |
| 24 | FRESH TRAINING CONCEPTS | 31 | 0 | 9 | $7.06 |
| 25 | FELPERIN DANIEL JAY | 29 | 0 | 9 | $3.45 |
Zip markets
Zips in Lake County
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 95451 | 1,180 | $4.29 | 40 C |
| 95453 | 1,009 | $4.38 | 43 C |
| 95422 | 810 | $4.17 | 37 D |
| 95467 | 772 | $4.86 | 39 C |
| 95423 | 361 | $4.43 | 39 C |
| 95461 | 288 | $4.64 | 38 D |
| 95457 | 216 | $4.61 | 38 D |
| 95458 | 212 | $4.46 | 38 D |
| 95485 | 167 | $4.63 | 37 D |
| 95464 | 157 | $4.30 | 39 C |
| 95426 | 135 | $4.21 | 39 C |
| 95435 | 35 | $3.75 | 41 C |
| 95443 | 25 | $3.79 | 41 C |
| 95493 | 22 | $4.71 | 36 D |
| 95424 | 4 | $4.01 | 40 C |