All industries › Battery storage › Maine › Rumford ESS
Battery storage · Oxford County, Maine
Rumford ESS
A 5 MW battery storage project in Oxford County, Maine. Rumford ESS is built and in service. Public records name Agilitas Energy, Inc. as its developer. No public record read so far names its builder.
The record
What the public record says about Rumford ESS, as of 23 Oct 2026.
| Stage | Operating |
|---|---|
| Construction start | In service since 2021 |
| Size | 5 MW |
| Location | Oxford County, Maine (to about 10 km) |
| Developer | Agilitas Energy, Inc. |
| Grid operator | — |
| Builder (EPC) | Not named yet |
| Trade subcontractors | in the app |
| People to call | in the app |
| Phase windows | in the app |
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What happened
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No change on record since Groundtrace started tracking it.
Who was named on it, and when, is in the app.
Also developed by Agilitas Energy, Inc.
| Project | Stage | Size |
|---|---|---|
| Braley Hill North SolarUtility solar · Plymouth County, Massachusetts | Queued | 5 MW |
| Fresno Community SolarUtility solar · Fresno County, California | Operating | 10 MW |
| I-Eye ESSBattery storage · Wharton County, Texas | Operating | 10 MW |
| Telview ESSBattery storage · Harris County, Texas | Operating | 10 MW |
| Truman SolarUtility solar · Boone County, Missouri | Operating | 10 MW |
| AE-ESS NWS 1Battery storage · Queens County, New York | Operating | 5 MW |
Also in Oxford County
| Project | Stage | Size |
|---|---|---|
| Oxford PV - BD Solar OxfordUtility solar | Operating | 9 MW |
| Rumford Falls Hydro FacilityBattery storage | Operating | 8 MW |
| FryeburgUtility solar | Operating | 5 MW |
| Ryans RanchUtility solar | Operating | 5 MW |
| South Paris PVUtility solar | Operating | 5 MW |
| ISM Solar Shepherd AcresUtility solar | Operating | 4 MW |
More
Questions
Rumford ESS, in short.
Where is Rumford ESS?
Rumford ESS is a 5 MW battery storage project in Oxford County, Maine. The public page places it to within about ten kilometres; the precise location is in the subscriber record.
When does construction start on Rumford ESS?
Rumford ESS is built and in service since 2021.
Who is developing Rumford ESS?
Agilitas Energy, Inc., as the public record names it.
Who is building Rumford ESS?
No public record read so far names a builder for Rumford ESS. Groundtrace leaves the field empty rather than guess, and fills it when a permit, a filing or the builder's own page names one.
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