Mampw Energy
No recent recordsSolar installer based in Massachusetts · installer record #7703 resolved from 40 public installation records.
At a glance
Mampw Energy is a solar installer with 40 recorded installations totalling 119.1 MW, dated 2010 to 2022. All of its records are in Massachusetts, where it ranks 148th of 487 profiled installers by volume and 3,734th of 10,537 nationally. The median installed price across 27 priced systems from all years is $1.99/W before incentives.
Track record
Install volume by year
Recorded installs per year; prices by year are in the table below.
Pricing
Price by year (solar only)
| Year | Priced systems | Mampw Energy | Massachusetts median | vs state |
|---|---|---|---|---|
| 2018 | 6 | $1.85/W | $3.88/W | −52% |
| 2017 | 18 | $2.13/W | $3.99/W | −47% |
Median installed price per DC watt before incentives, systems without a battery, by the year in the public record. Years with fewer than five priced systems are left out.
Why a company's own figure can differ from this one
- Timing. These prices come from state incentive filings, published about once a year, so the latest full year here is the last year of data. Prices moved down in many states after 2023; a company's current quotes can be lower (or higher) than its last full year on record.
- Dates. A filing is dated when the program processed it, not when the job was sold, so jobs can land in a different month or year than in the company's own books.
- What the price includes. The filed price is the whole project as reported to the program, which can include loan dealer fees, electrical panel upgrades or roof work. A company's internal figure often leaves those out.
- Batteries. Systems flagged with a battery are excluded here; a battery the filing didn't flag can still raise a year's median.
Latest records
Most recent recorded installs
| Date | Location | Size | Price | Ownership |
|---|---|---|---|---|
| Jan 1, 2022 | Sandwich, MA | 4,300 kW | $2,214,770 | — |
| Jan 1, 2021 | Carver, MA | 12,200 kW | $4,559,229 | — |
| Jan 1, 2021 | Wareham, MA | 4,100 kW | $3,295,897 | — |
| Jun 27, 2019 | Millbury, MA | 1,409 kW | $4,064,405 | — |
| May 17, 2019 | Carver, MA | 2,842.4 kW | $4,559,229 | — |
| Apr 18, 2019 | Hopkinton, MA | 2,764.8 kW | $5,127,620 | — |
| Jan 1, 2019 | Hopkinton, MA | 2,800 kW | $5,127,620 | — |
| Dec 31, 2018 | Wareham, MA | 1,386.5 kW | $2,569,426 | — |
| Dec 31, 2018 | Wareham, MA | 1,798.9 kW | $3,333,833 | — |
| Dec 31, 2018 | Wareham, MA | 1,778.4 kW | $3,295,897 | — |
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Service geography
Busiest cities
Record
- Installer ID
- PC-7703
- First recorded install
- Jan 1, 2010
- Last recorded install
- Jan 1, 2022
- Priced records
- 27
Is this your company?
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How does Mampw Energy compare with other installers in Massachusetts?
By recorded installations Mampw Energy ranks 148th among the 487 installers based in Massachusetts with five or more records. Its all-years median price of $1.99/W is about half of the Massachusetts median of $4.17/W. Its median system, 2,439 kW, is about 326 times the state median of 7.5 kW. 15% of its recorded installations are third-party owned (lease or power-purchase agreement), against 47% across Massachusetts. 0% include battery storage, compared with 4% of Massachusetts records. Installers of similar recorded volume in Massachusetts include Sunray Solar Nj (41), bruce dike (41) and JAMES LEAVITT (41).
How has Mampw Energy's installation volume changed?
Mampw Energy's earliest dated installation on record is from 2010. It has recorded installations in 7 calendar years. The busiest year was 2017, with 22 installations. 2022, its latest year with records, has 1. Its median price per watt moved from $2.13/W in 2017 to $1.85/W in 2019. The most recent recorded installation is dated Jan 1, 2022. No installation in the public records is dated within the last three years.
Where does Mampw Energy install solar?
All recorded installations are in Massachusetts. The cities with the most of its installations are Wareham, MA (5), Haverhill, MA (4), Hopkinton, MA (3), Foxborough, MA (3) and Pittsfield, MA (2).
Frequently asked questions
How many solar installations has Mampw Energy completed?
PanelCensus records 40 installations by Mampw Energy, from Jan 1, 2010 to Jan 1, 2022, totalling 119.1 MW of capacity. Public reporting varies by state, so the company's true total may be higher.
What does Mampw Energy charge for solar?
The median installed price across 27 priced systems from all years is $1.99/W before incentives (median system 2,439 kW, about $2,927,461). The Massachusetts median is $4.17/W. Prices are the total project cost reported to state programs, so they can include work billed with the solar.
Where does Mampw Energy install solar?
All 40 recorded installations are in Massachusetts, the most of them in Wareham.
Is Mampw Energy still installing solar?
The most recent installation attributed to Mampw Energy in the public records is dated Jan 1, 2022; 2022 has 1 recorded installation. Records reach PanelCensus months to a couple of years after installation, so recent activity may not appear yet.
Does Mampw Energy install leased or PPA solar systems?
6 recorded installations by Mampw Energy (15%) are third-party owned — a lease or power-purchase agreement; across Massachusetts the share is 47%.
Does Mampw Energy install battery storage?
0 recorded installations by Mampw Energy (0%) include a battery.
Related installers and places
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, “Mampw Energy, solar installer (Massachusetts)”, https://panelcensus.com/installers/massachusetts/mampw-energy-7703 (data as of September 21, 2026).