Middlesex County, MA solar installation & market data
Updated November 19, 2024Older data · growth withheld By The SolarDNA Data Team
Middlesex County has 30,472 solar installations across 87 zip codes at a median installed cost of $4.09/W, recent growth not yet measurable, and an installs-weighted Market Score of 48.
Active installations
30,472
Zip markets
87
Median cost
$4.09/W
12-mo growth
—
Installers active
462
County Market Score
Great · installs-weighted across 87 zips
Best zip in Middlesex County scores higher than 95% of U.S. zip markets.
Versus Massachusetts
How Middlesex County compares with the state
Installed cost
$0.08/W below
state median $4.17/W
Market score
48 vs 58
Massachusetts scores 58
Share of state installs
21.36%
of 142.6K tracked statewide
Battery attach
3.5%
state 3.1%
Statewide momentum
▲ 22.8%
residential solar added in Massachusetts, 12 months through Jul 2026
Statewide market
233.7K systems
13.3% of homes · utility-reported through Jul 2026
Growth & pricing
Middlesex County by year
2,791 installs in the trailing twelve months vs 2,790 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Middlesex County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 7,697 | 452 | 70 | $4.05 |
| 2 | TESLA | 4,637 | 290 | 70 | $4.95 |
| 3 | TRINITY SOLAR | 1,954 | 3 | 69 | $3.81 |
| 4 | BOSTON SOLAR | 1,232 | 107 | 75 | $3.85 |
| 5 | DIRECT ENERGY SOLAR | 1,196 | 0 | 72 | $3.81 |
| 6 | SUNBUG SOLAR | 1,184 | 53 | 71 | $4.16 |
| 7 | SOLARFLAIR ENERGY | 844 | 0 | 54 | $3.70 |
| 8 | NEXT STEP LIVING | 650 | 0 | 71 | $6.32 |
| 9 | SUNGEVITY | 639 | 0 | 65 | $4.07 |
| 10 | REVOLUSUN | 617 | 32 | 75 | $4.30 |
| 11 | NEW ENGLAND CLEAN ENERGY | 544 | 13 | 69 | $4.70 |
| 12 | ROOF DIAGNOSTICS SOLAR | 532 | 0 | 65 | $3.92 |
| 13 | GREAT SKY SOLAR | 526 | 95 | 64 | $3.12 |
| 14 | SUNLIGHT SOLAR ENERGY | 440 | 9 | 61 | $4.05 |
| 15 | SUNPOWER | 353 | 122 | 56 | $4.13 |
| 16 | FREEDOM FOREVER | 280 | 76 | 55 | $3.81 |
| 17 | RGS ENERGY | 277 | 0 | 66 | $4.85 |
| 18 | 1ST LIGHT ENERGY | 274 | 0 | 49 | $4.06 |
| 19 | BRIGHTSTAR SOLAR | 251 | 22 | 49 | $3.31 |
| 20 | INVALEON TECHNOLOGIES | 248 | 8 | 57 | $3.59 |
| 21 | REVISION ENERGY | 228 | 31 | 58 | $3.59 |
| 22 | PALMETTO SOLAR | 219 | 1 | 46 | $4.20 |
| 23 | SECOND GENERATION ENERGY | 218 | 18 | 54 | $3.58 |
| 24 | SOLECT ENERGY | 212 | 12 | 52 | $2.97 |
| 25 | ACE RESIDENTIAL SOLAR | 204 | 17 | 57 | $3.19 |
Zip markets
Zips in Middlesex County
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 01701 | 1,319 | $4.08 | 52 A |
| 01801 | 1,286 | $4.43 | 50 B |
| 01760 | 1,143 | $3.97 | 52 A |
| 01826 | 1,056 | $4.20 | 50 B |
| 02155 | 902 | $4.27 | 49 B |
| 01752 | 862 | $4.05 | 50 B |
| 02148 | 859 | $4.20 | 49 B |
| 01821 | 789 | $4.28 | 48 B |
| 02474 | 757 | $4.08 | 49 B |
| 01803 | 736 | $4.01 | 49 B |
| 01720 | 718 | $3.92 | 50 B |
| 02149 | 705 | $4.23 | 48 B |
| 01748 | 677 | $3.55 | 51 A |
| 01824 | 673 | $4.19 | 48 B |
| 01702 | 668 | $4.00 | 49 B |
| 01721 | 654 | $3.87 | 50 B |
| 01886 | 595 | $3.94 | 49 B |
| 02180 | 559 | $4.37 | 47 B |
| 02421 | 528 | $3.89 | 49 B |
| 02176 | 522 | $4.20 | 47 B |
| 01746 | 513 | $3.70 | 50 B |
| 01876 | 501 | $4.26 | 47 B |
| 02476 | 492 | $4.00 | 48 B |
| 01854 | 478 | $4.28 | 47 B |
| 02420 | 454 | $4.00 | 48 B |
| 02451 | 452 | $4.04 | 48 B |
| 01852 | 448 | $4.28 | 47 B |
| 01890 | 443 | $4.14 | 47 B |
| 01778 | 416 | $3.70 | 49 B |
| 02472 | 415 | $4.23 | 47 B |
| 01730 | 406 | $3.95 | 48 B |
| 02459 | 403 | $4.02 | 48 B |
| 01754 | 400 | $4.05 | 48 B |
| 01776 | 392 | $3.71 | 49 B |
| 01851 | 388 | $4.12 | 47 B |
| 01879 | 388 | $4.08 | 47 B |
| 01463 | 378 | $4.40 | 46 B |
| 01742 | 345 | $3.69 | 49 B |
| 02453 | 337 | $4.23 | 46 B |
| 01469 | 312 | $4.47 | 45 C |
| 02478 | 310 | $3.70 | 49 B |
| 02138 | 309 | $4.28 | 46 B |
| 02144 | 305 | $3.93 | 48 B |
| 01432 | 284 | $4.35 | 46 B |
| 02465 | 278 | $4.06 | 47 B |
| 02140 | 265 | $4.05 | 47 B |
| 01862 | 259 | $4.51 | 45 C |
| 01773 | 252 | $3.70 | 48 B |
| 02139 | 242 | $4.51 | 45 C |
| 01464 | 235 | $4.23 | 46 B |
| 01850 | 234 | $4.16 | 46 B |
| 01741 | 233 | $3.91 | 47 B |
| 02145 | 230 | $4.20 | 46 B |
| 02143 | 222 | $4.04 | 47 B |
| 01431 | 202 | $4.31 | 45 C |
| 02452 | 199 | $4.02 | 47 B |
| 02493 | 159 | $4.00 | 47 B |
| 01863 | 156 | $4.21 | 46 B |
| 01770 | 144 | $3.72 | 48 B |
| 02460 | 143 | $4.27 | 45 C |
| 02467 | 142 | $3.85 | 47 B |
| 01827 | 139 | $4.20 | 46 B |
| 02458 | 138 | $4.40 | 45 C |
| 02461 | 133 | $3.91 | 47 B |
| 02468 | 124 | $3.95 | 47 B |
| 02466 | 115 | $4.05 | 46 B |
| 01775 | 98 | $4.31 | 45 C |
| 01474 | 77 | $4.46 | 44 C |
| 02141 | 59 | $4.23 | 45 C |
| 01887 | 54 | $4.15 | 45 C |
| 01460 | 45 | $4.40 | 44 C |
| 02462 | 40 | $4.24 | 45 C |
| 01749 | 38 | $4.50 | 44 C |
| 01864 | 34 | $3.66 | 48 B |
| 01450 | 33 | $4.04 | 46 B |
| 02464 | 32 | $4.11 | 45 C |
| 01867 | 32 | $4.04 | 46 B |
| 01731 | 32 | $3.00 | 51 A |
| 01719 | 32 | $4.91 | 42 C |
| 01880 | 30 | $4.44 | 44 C |
| 02142 | 5 | $3.82 | 47 B |
| 01853 | 3 | $4.59 | 43 C |
| 02454 | 2 | $7.24 | 35 D |
| 01718 | 2 | $5.20 | 40 C |
| 02238 | 1 | $5.20 | 40 C |
| 02456 | 1 | $3.46 | 48 B |
| 02471 | 1 | $3.39 | 49 B |