Old Frontier Solar III
Solar and battery storage project in Franklin County, Massachusetts. 4 MW of nameplate capacity across 2 generators, operated by Old Frontier Solar III PV, LLC.
Also known as EIA plant 68069
This project groups Old Frontier Solar III (EIA 68069). EIA reports them as separate plants.
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 4 MWSolar 2.0 · Battery storage 2.0
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- September 2022First generator online
- Operator
- Old Frontier Solar III PV, LLCEIA operator ID 66580
- Grid
- ISO-NEBalancing authority ISNE
- Price nodes
- 1 ISONE nodeResource nodes with prices
- Location
- Franklin County, MA42.4940, −72.6225
- EIA plant ID
- 68069EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Old Frontier Solar III produces
Free · EIA-923Net generation, 2025
3.82 GWh
3,822 MWh, final
Capacity factor, 2025
21.9%
2024: 23.4%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2024 to 2025
3.8–4.1
GWh a year. Low 2025, high 2024
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | Not reported | Not reported | 0 of 12 |
| 2017 | Not reported | Not reported | 0 of 12 |
| 2018 | Not reported | Not reported | 0 of 12 |
| 2019 | Not reported | Not reported | 0 of 12 |
| 2020 | Not reported | Not reported | 0 of 12 |
| 2021 | Not reported | Not reported | 0 of 12 |
| 2022 | Not reported | Not reported | 0 of 12 |
| 2023 | Not reported | Not reported | 0 of 12 |
| 2024 | 4,089 | 23.4% | 12 of 12 |
| 2025 | 3,822 | 21.9% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · ISONEEmissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 16501 | Solar Photovoltaic | 2.0 | September 2022 |
| 16502 | Batteries | 2.0 | September 2022 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Old Frontier Solar III PV, LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Modeled curtailment
A range, not one number. The lower bound counts hours inside the production tax credit window; the upper bound is the no-credit case.
Expected vs reported generation
Monthly modeled expected output and physical potential next to EIA-923 reported output.
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Questions about Old Frontier Solar III
How much power does Old Frontier Solar III produce?
Old Frontier Solar III reported 3,822 MWh (3.82 GWh) of net generation in 2025, a 21.9% capacity factor on 4 MW of nameplate capacity.
Where is Old Frontier Solar III?
Old Frontier Solar III is in Franklin County, Massachusetts, at 42.4940, −72.6225. It is in the ISO New England Inc. balancing area (ISNE).
Who operates Old Frontier Solar III?
EIA-860M for August 2026 lists Old Frontier Solar III PV, LLC as the operator (EIA operator ID 66580). The operator is not always the owner.
Is Old Frontier Solar III a solar or a battery storage plant?
Both. Solar capacity totals 2 MW and battery storage capacity totals 2 MW.
When did Old Frontier Solar III start operating?
Its first generator began operating in September 2022, according to EIA-860M.
Does InfraMap have power prices for Old Frontier Solar III?
Yes. InfraMap has ISONE day-ahead and real-time prices at 1 price node linked to Old Frontier Solar III, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- ISONE day-ahead and real-time prices; node and hub assignments as of 2026-10-05
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page