Lastmile Energy
Recently activeSolar installer based in Massachusetts · active in 3 states · installer record #7247 resolved from 12 public installation records.
Data through: New York through Sep 2026 (monthly state program data); its other 2 states through Dec 2025 (LBNL Tracking the Sun).
At a glance
Lastmile Energy is a solar installer with 12 recorded installations totalling 1.8 MW, dated 2016 to 2024. Its records are concentrated in Massachusetts (83%), where it ranks 281st of 487 profiled installers by volume and 6,874th of 10,840 nationally. The median installed price across 11 priced systems from all years is $2.36/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 | Lastmile Energy | Massachusetts median | vs state |
|---|---|---|---|---|
| 2024 | 5 | $2.00/W | $3.35/W | −40% |
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 2025. 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.
Equipment
Module, inverter and battery brands
| Equipment | Year | Main brands (share of systems that reported one) | Year before |
|---|---|---|---|
| Modules | 20245 reported | Canadian Solar 80% · Qcells 20% | — |
| Inverters | 20245 reported | SMA 100% | — |
Manufacturer on each recorded installation, as filed with the state program (Tracking the Sun for earlier years). Brand names are grouped by manufacturer family (e.g. Hanwha Q CELLS and Qcells North America count as Qcells). Not every state reports equipment, and battery brands come mainly from California and New Jersey.
Latest records
Most recent recorded installs
| Date | Location | Size | Price | Ownership |
|---|---|---|---|---|
| Dec 11, 2024 | Maynard, MA | 729.6 kW | $1,200,000 | Host-owned |
| Oct 15, 2024 | Maynard, MA | 150.4 kW | $300,000 | Host-owned |
| Oct 15, 2024 | Maynard, MA | 81.2 kW | $180,000 | Host-owned |
| Oct 15, 2024 | Maynard, MA | 78 kW | $156,000 | Host-owned |
| Oct 15, 2024 | Maynard, MA | 41.7 kW | $100,000 | Host-owned |
| Dec 1, 2023 | Sharon, MA | 372 kW | $750,000 | Third-party · battery |
| Apr 11, 2023 | Waltham, MA | 197.8 kW | $467,000 | Third-party |
| Jun 29, 2022 | Maynard, MA | 91.2 kW | $220,000 | Third-party |
| Jul 17, 2020 | Bronx, NY | 73.9 kW | $175,000 | Host-owned |
| Mar 16, 2020 | Westwood, MA | 7.5 kW | $25,000 | Host-owned |
See all 12 installations →searchable & filterable; export to CSV with a free account
Service geography
Busiest cities
Record
- Installer ID
- PC-7247
- First recorded install
- Dec 16, 2016
- Last recorded install
- Dec 11, 2024
- Priced records
- 11
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How does Lastmile Energy compare with other installers in Massachusetts?
By recorded installations Lastmile Energy ranks 281st among the 487 installers based in Massachusetts with five or more records. Its all-years median price of $2.36/W is about 43% below the Massachusetts median of $4.17/W (the installer's median covers every state it works in). Its median system, 81.2 kW, is about 11 times the state median of 7.5 kW. 25% of its recorded installations are third-party owned (lease or power-purchase agreement), against 47% across Massachusetts. 8% include battery storage, compared with 4% of Massachusetts records. Installers of similar recorded volume in Massachusetts include Great Sky S (13), Onyx Renewables (13) and Atlantic Design Engineers (12).
How has Lastmile Energy's installation volume changed?
Lastmile Energy's earliest dated installation on record is from 2016. It has recorded installations in 5 calendar years. The busiest year was 2024, with 5 installations. Its median price per watt moved from $3.32/W in 2016 to $2.00/W in 2024. The most recent recorded installation is dated Dec 11, 2024.
Where does Lastmile Energy install solar?
Recorded installations span 3 states: Massachusetts (10, 83%), New York (1, 8%) and Rhode Island (1, 8%). The cities with the most of its installations are Maynard, MA (6), Sharon, MA (1), Westwood, MA (1), Newport, RI (1) and Waltham, MA (1).
Frequently asked questions
How many solar installations has Lastmile Energy completed?
PanelCensus records 12 installations by Lastmile Energy, from Dec 16, 2016 to Dec 11, 2024, totalling 1.8 MW of capacity. Public reporting varies by state, so the company's true total may be higher.
What does Lastmile Energy charge for solar?
The median installed price across 11 priced systems from all years is $2.36/W before incentives (median system 81.2 kW, about $180,000). 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 Lastmile Energy install solar?
Recorded installs span 3 states, led by Massachusetts (10), New York (1) and Rhode Island (1). Its busiest city is Maynard, MA.
Is Lastmile Energy still installing solar?
The most recent installation attributed to Lastmile Energy in the public records is dated Dec 11, 2024; 2024 has 5 recorded installations. Records here run New York through Sep 2026 (monthly state program data); its other 2 states through Dec 2025 (LBNL Tracking the Sun), so the newest installations may not appear yet.
Does Lastmile Energy install leased or PPA solar systems?
3 recorded installations by Lastmile Energy (25%) are third-party owned — a lease or power-purchase agreement; across Massachusetts the share is 47%.
Does Lastmile Energy install battery storage?
1 recorded installation by Lastmile Energy (8%) includes a battery.
Related installers and places
- All solar installers in Massachusetts· 487 profiles
- Solar installations in Massachusetts· 159,600 records
- Great Sky S· 13 installations
- Onyx Renewables· 13 installations
- Atlantic Design Engineers· 12 installations
- Lhs Carpentry· 12 installations
- Meyer And Sons· 12 installations
- Nextsun Energy· 12 installations
- Solar in New York· 1 by Lastmile Energy
- Solar in Rhode Island· 1 by Lastmile Energy
Dataset updated . Sources: LBNL Tracking the Sun (through 2025), monthly state program records (California DGStats, NYSERDA, NJ Clean Energy, Illinois Shines) and permit records; installer resolved by exact-normalized name matching and, for state program records, by the systems both sources share.
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, “Lastmile Energy, solar installer (Massachusetts)”, https://panelcensus.com/installers/massachusetts/lastmile-energy-7247 (data as of September 21, 2026).