Holtsville, NY solar installation & market data
Updated February 6, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Holtsville has 228 solar installations across 1 zip code at a median installed cost of $4.34/W, recent growth not yet measurable, and an installs-weighted Market Score of 48.
Active installations
228
Zip markets
1
Median cost
$4.34/W
12-mo growth
—
Installers active
12
City Market Score
Great · installs-weighted across 1 zips
Best zip in Holtsville scores higher than 78% of U.S. zip markets.
Versus New York
How Holtsville compares with the state
Installed cost
$0.18/W above
state median $4.16/W
Market score
48 vs 59
New York scores 59
Share of state installs
0.12%
of 187.3K tracked statewide
Battery attach
1.4%
state 2.1%
Statewide momentum
▲ 25.2%
residential solar added in New York, 12 months through Jul 2026
Statewide market
274.1K systems
6.4% of homes · utility-reported through Jul 2026
Growth & pricing
Holtsville by year
6 installs in the trailing twelve months vs 14 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Holtsville
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNATION SOLAR SYSTEMS | 33 | 3 | 1 | $3.83 |
| 2 | TESLA | 26 | 0 | 1 | $5.60 |
| 3 | SUNRUN | 18 | 0 | 1 | $4.50 |
| 4 | LEVEL SOLAR | 16 | 0 | 1 | $5.05 |
| 5 | SUNPOWER | 12 | 0 | 1 | $5.41 |
| 6 | LONG ISLAND POWER SOLUTIONS | 10 | 0 | 1 | $3.84 |
| 7 | HARVEST POWER | 9 | 0 | 1 | $3.75 |
| 8 | NRG RESIDENTIAL SOLAR SOLUTIONS | 9 | 0 | 1 | $3.54 |
| 9 | GREEN LOGIC | 6 | 0 | 1 | $4.12 |
| 10 | GREENLEAF SOLAR NY | 6 | 0 | 1 | $3.46 |
| 11 | EMPOWER SOLAR | 5 | 0 | 1 | $5.41 |
| 12 | HYTECH SOLAR | 4 | 1 | 1 | $5.58 |
Zip markets
Zips in Holtsville
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 11742 | 228 | $4.34 | 48 B |