Suffolk County, NY solar installation & market data
Updated August 27, 2026 By The SolarDNA Data Team
Suffolk County has 21,694 solar installations across 104 zip codes at a median installed cost of $4.75/W, installations down 16.7% over the trailing twelve months, and an installs-weighted Market Score of 46.
Active installations
21,694
Zip markets
104
Median cost
$4.75/W
12-mo growth
▼ 16.7%
Installers active
249
County Market Score
Great · installs-weighted across 104 zips
Best zip in Suffolk County scores higher than 86% of U.S. zip markets.
Versus New York
How Suffolk County compares with the state
Installed cost
$0.59/W above
state median $4.16/W
Market score
46 vs 59
New York scores 59
Share of state installs
11.59%
of 187.3K tracked statewide
Battery attach
3.1%
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
Next-12-month outlook: 612–748 installs (midpoint 680)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±10% band. Not a forecast of permits or policy.
Growth & pricing
Suffolk County by year
742 installs in the trailing twelve months vs 891 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Suffolk County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 3,138 | 0 | 85 | $5.18 |
| 2 | TESLA | 2,764 | 35 | 96 | $5.59 |
| 3 | SUNATION SOLAR SYSTEMS | 2,366 | 161 | 100 | $3.73 |
| 4 | SUNPOWER | 905 | 0 | 100 | $5.26 |
| 5 | LEVEL SOLAR | 866 | 0 | 78 | $5.05 |
| 6 | LONG ISLAND POWER SOLUTIONS | 813 | 16 | 86 | $3.75 |
| 7 | NRG RESIDENTIAL SOLAR SOLUTIONS | 748 | 0 | 84 | $3.53 |
| 8 | HARVEST POWER | 741 | 56 | 90 | $3.85 |
| 9 | GREEN LOGIC | 726 | 19 | 96 | $4.09 |
| 10 | NYSS | 724 | 9 | 66 | $3.94 |
| 11 | EMPOWER SOLAR | 531 | 29 | 86 | $3.94 |
| 12 | SUNWIZE TECHNOLOGIES | 220 | 0 | 71 | $4.46 |
| 13 | GREENLOGIC | 189 | 0 | 58 | $4.62 |
| 14 | GREENLEAF SOLAR NY | 167 | 0 | 53 | $3.77 |
| 15 | TRINITY SOLAR | 148 | 0 | 58 | $3.65 |
| 16 | SURF CLEAN ENERGY | 142 | 20 | 49 | $5.14 |
| 17 | HYTECH SOLAR | 138 | 21 | 54 | $4.16 |
| 18 | EASTERN ENERGY SYSTEMS | 133 | 0 | 48 | $3.99 |
| 19 | SUNGEVITY | 130 | 0 | 54 | $3.47 |
| 20 | MAJESTIC SONS | 126 | 0 | 57 | $4.43 |
| 21 | DIRECT ENERGY SOLAR | 125 | 0 | 45 | $3.91 |
| 22 | WESCO DISTRIBUTION | 100 | 0 | 47 | $3.96 |
| 23 | YOU SAVE GREEN | 97 | 0 | 39 | $3.71 |
| 24 | ENERGY BY CHOICE | 94 | 0 | 43 | $4.32 |
| 25 | R B QUALITY ELECTRIC | 93 | 0 | 43 | $4.14 |
Zip markets
Zips in Suffolk County
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 11757 | 849 | $4.95 | 48 B |
| 11704 | 823 | $5.10 | 47 B |
| 11746 | 708 | $4.95 | 47 B |
| 11706 | 687 | $4.56 | 49 B |
| 11772 | 583 | $4.51 | 49 B |
| 11779 | 582 | $4.44 | 49 B |
| 11717 | 559 | $5.10 | 46 B |
| 11729 | 509 | $5.20 | 45 C |
| 11741 | 490 | $4.50 | 48 B |
| 11787 | 485 | $4.49 | 48 B |
| 11720 | 466 | $4.88 | 46 B |
| 11725 | 437 | $4.23 | 49 B |
| 11763 | 431 | $4.45 | 48 B |
| 11731 | 383 | $4.44 | 48 B |
| 11743 | 373 | $4.51 | 48 B |
| 11795 | 364 | $4.52 | 47 B |
| 11937 | 345 | $5.28 | 44 C |
| 11784 | 339 | $4.50 | 47 B |
| 11754 | 334 | $4.66 | 47 B |
| 11776 | 333 | $4.65 | 47 B |
| 11901 | 332 | $4.84 | 46 B |
| 11727 | 331 | $4.64 | 47 B |
| 11701 | 318 | $4.20 | 49 B |
| 11703 | 317 | $5.00 | 45 C |
| 11722 | 309 | $5.25 | 44 C |
| 11702 | 308 | $4.99 | 45 C |
| 11967 | 300 | $4.28 | 48 B |
| 11788 | 282 | $4.56 | 47 B |
| 11782 | 281 | $4.32 | 48 B |
| 11968 | 281 | $5.10 | 44 C |
| 11738 | 275 | $4.65 | 46 B |
| 11949 | 265 | $4.32 | 48 B |
| 11726 | 242 | $5.00 | 45 C |
| 11767 | 240 | $5.10 | 44 C |
| 11798 | 233 | $5.28 | 43 C |
| 11742 | 228 | $4.34 | 48 B |
| 11768 | 227 | $4.75 | 46 B |
| 11755 | 225 | $4.51 | 47 B |
| 11733 | 222 | $5.00 | 45 C |
| 11752 | 220 | $4.53 | 47 B |
| 11716 | 205 | $4.68 | 46 B |
| 11730 | 203 | $4.42 | 47 B |
| 11946 | 200 | $4.38 | 47 B |
| 11764 | 198 | $4.40 | 47 B |
| 11961 | 191 | $4.34 | 47 B |
| 11769 | 187 | $4.41 | 47 B |
| 11954 | 183 | $5.27 | 43 C |
| 11751 | 182 | $4.53 | 47 B |
| 11792 | 175 | $4.31 | 48 B |
| 11950 | 171 | $4.62 | 46 B |
| 11976 | 169 | $5.21 | 43 C |
| 11963 | 167 | $5.34 | 43 C |
| 11951 | 160 | $4.88 | 45 C |
| 11713 | 159 | $5.04 | 44 C |
| 11971 | 154 | $5.36 | 42 C |
| 11933 | 154 | $4.47 | 47 B |
| 11778 | 154 | $4.37 | 47 B |
| 11934 | 151 | $4.36 | 47 B |
| 11780 | 149 | $4.50 | 46 B |
| 11790 | 148 | $5.00 | 44 C |
| 11766 | 142 | $4.52 | 46 B |
| 11747 | 139 | $4.43 | 47 B |
| 11740 | 139 | $4.23 | 48 B |
| 11952 | 134 | $5.03 | 44 C |
| 11705 | 126 | $4.60 | 46 B |
| 11953 | 122 | $4.61 | 46 B |
| 11786 | 122 | $4.32 | 47 B |
| 11940 | 105 | $4.21 | 48 B |
| 11932 | 104 | $5.30 | 43 C |
| 11715 | 103 | $4.50 | 46 B |
| 11935 | 98 | $4.74 | 45 C |
| 11964 | 92 | $5.10 | 43 C |
| 11942 | 81 | $4.94 | 44 C |
| 11930 | 80 | $5.75 | 40 C |
| 11777 | 79 | $4.64 | 45 C |
| 11978 | 76 | $5.05 | 44 C |
| 11962 | 75 | $6.04 | 39 C |
| 11789 | 65 | $3.98 | 49 B |
| 11749 | 61 | $4.39 | 47 B |
| 11977 | 58 | $5.20 | 43 C |
| 11959 | 53 | $5.60 | 41 C |
| 11796 | 51 | $4.23 | 47 B |
| 11721 | 50 | $5.25 | 42 C |
| 11980 | 49 | $5.10 | 43 C |
| 11719 | 47 | $4.65 | 45 C |
| 11948 | 45 | $5.60 | 41 C |
| 11965 | 43 | $5.09 | 43 C |
| 11944 | 37 | $5.10 | 43 C |
| 11941 | 35 | $5.60 | 41 C |
| 11960 | 34 | $5.46 | 41 C |
| 11947 | 27 | $7.39 | 37 D |
| 11955 | 26 | $4.26 | 47 B |
| 11957 | 26 | $6.70 | 37 D |
| 11958 | 25 | $5.00 | 44 C |
| 11931 | 23 | $7.89 | 37 D |
| 11939 | 23 | $7.46 | 37 D |
| 11718 | 22 | $4.10 | 48 B |
| 11975 | 20 | $4.83 | 44 C |
| 11770 | 19 | $8.45 | 37 D |
| 11739 | 18 | $4.99 | 44 C |
| 11972 | 18 | $4.25 | 47 B |
| 11724 | 17 | $5.07 | 43 C |
| 11970 | 5 | $5.60 | 41 C |
| 11956 | 4 | $5.50 | 41 C |