Sol Alliance
Recently activeSolar installer based in Massachusetts · active in 3 states · installer record #11150 resolved from 31 public installation records.
At a glance
Sol Alliance is a solar installer with 31 recorded installations totalling 8.2 MW, dated 2020 to 2025. Its records are concentrated in Massachusetts (81%), where it ranks 164th of 463 profiled installers by volume and 4,404th of 10,536 nationally. The median installed price across 30 priced systems is $2.34/W before incentives.
Track record
Install volume by year
Bars: recorded installs · right column: this installer's median $/W that year.
Latest records
Most recent recorded installs
| Date | Location | Size | Price | Ownership |
|---|---|---|---|---|
| May 1, 2025 | Pembroke, MA | 221.3 kW | $531,688 | Host-owned |
| Apr 30, 2025 | Pembroke, MA | 202.5 kW | $459,937 | Host-owned |
| Apr 30, 2025 | Pembroke, MA | 273.8 kW | $538,992 | Host-owned |
| Apr 29, 2025 | Pembroke, MA | 448.3 kW | $757,438 | Host-owned |
| Apr 7, 2025 | Pembroke, MA | 357.8 kW | $792,054 | Host-owned |
| Dec 31, 2024 | Pembroke, MA | 375 kW | $652,544 | Host-owned |
| Dec 31, 2024 | Pembroke, MA | 300 kW | $539,780 | Host-owned |
| Aug 15, 2023 | Pembroke, MA | 108 kW | $194,662 | Host-owned |
| Aug 15, 2023 | Pembroke, MA | 108 kW | $194,981 | Host-owned |
| Aug 14, 2023 | Pembroke, MA | 108 kW | $190,710 | Third-party |
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Service geography
Busiest cities
Record
- Installer ID
- PC-11150
- First recorded install
- Jan 28, 2020
- Last recorded install
- May 1, 2025
- Priced records
- 30
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How does Sol Alliance compare with other installers in Massachusetts?
By recorded installations Sol Alliance ranks 164th among the 463 installers based in Massachusetts with five or more records. Its median price of $2.34/W is about 44% below the Massachusetts median of $4.17/W (the installer's median covers every state it works in). Its median system, 209.2 kW, is about 28 times the state median of 7.5 kW. 3% of its recorded installations are third-party owned (lease or power-purchase agreement), against 47% across Massachusetts. 6% include battery storage, compared with 4% of Massachusetts records. Installers of similar recorded volume in Massachusetts include Kosmo Solar (34), Samuel Pillsbury (34) and Key Solar (33).
How has Sol Alliance's installation volume changed?
Sol Alliance's earliest dated installation on record is from 2017. It has recorded installations in 7 calendar years. The busiest year was 2023, with 9 installations. 2025, its latest year with records, has 5. Its median price per watt moved from $3.08/W in 2020 to $2.21/W in 2025. The most recent recorded installation is dated May 1, 2025.
Where does Sol Alliance install solar?
Recorded installations span 3 states: Massachusetts (25, 81%), New York (6, 19%) and New Jersey (1, 3%). The cities with the most of its installations are Pembroke, MA (16), New York, NY (3), Brockton, MA (3), Norwell, MA (3) and West Bridgewater, MA (2).
Frequently asked questions
How many solar installations has Sol Alliance completed?
PanelCensus records 31 installations by Sol Alliance, from Jan 28, 2020 to May 1, 2025, totalling 8.2 MW of capacity. Public reporting varies by state, so the company's true total may be higher.
What does Sol Alliance charge for solar?
The median installed price across 30 priced systems is $2.34/W before incentives (median system 209.2 kW, about $473,591). The Massachusetts median is $4.17/W.
Where does Sol Alliance install solar?
Recorded installs span 3 states, led by Massachusetts (25), New York (6) and New Jersey (1). Its busiest city is Pembroke, MA.
Is Sol Alliance still installing solar?
The most recent installation attributed to Sol Alliance in the public records is dated May 1, 2025; 2025 has 5 recorded installations. Records reach PanelCensus months to a couple of years after installation, so recent activity may not appear yet.
Does Sol Alliance install leased or PPA solar systems?
1 recorded installation by Sol Alliance (3%) is third-party owned — a lease or power-purchase agreement; across Massachusetts the share is 47%.
Does Sol Alliance install battery storage?
2 recorded installations by Sol Alliance (6%) include a battery.
Related installers and places
- All solar installers in Massachusetts· 463 profiles
- Solar installations in Massachusetts· 159,700 records
- Kosmo Solar· 34 installations
- Samuel Pillsbury· 34 installations
- Key Solar· 33 installations
- Solworks Energy· 31 installations
- Daniel McGrath· 31 installations
- Incite Solutions· 31 installations
- Solar in New York· 6 by Sol Alliance
- Solar in New Jersey· 1 by Sol Alliance
Dataset updated . Sources: LBNL Tracking the Sun + permit and program records; installer resolved by exact-normalized name matching.
About this data
Source: Lawrence Berkeley National Laboratory's Tracking the Sun, merged with city permit records, state incentive programs and the USGS U.S. Large-Scale Solar Photovoltaic Database / EIA-860 plant registers, as published September 21, 2026 — PanelCensus refreshes it as each source publishes new records. See the methodology for how records are matched, cleaned and scored.
Cite as: PanelCensus, “Sol Alliance, solar installer (Massachusetts)”, https://panelcensus.com/installers/massachusetts/sol-alliance-11150 (data as of September 21, 2026).