A two-hour Tesla Megapack facility beside Carver Substation
Cranberry Point is an operating 150 MW/300 MWh standalone battery on a six-acre parcel in Carver, Massachusetts. The final approved design uses 82 Tesla Megapack 2 XL units with integrated inverters.
Answers use this researched asset profile with live ISO-NE data. Ask about ownership, equipment, project history, or current grid context.
Live ISO-NE public data · answers can be wrong, verify against source data or the ISO.
Current EIA nameplate and regulator-approved project basis.
Two-hour project design.
Tesla Megapack 2 XL units in the final design.
Illustrative BESS equipment layout for comparing sites. Not an as-built site map.
Similar plants ranked by technology, capacity, and distance.
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| NA | 150 MW 150 MW summer | Batteries Electricity used for energy storage · BA | May 2025 | Operating |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
Project milestones and public references behind the asset profile.
EIA-923 reports gross generation and net grid exchange for storage plants. Gross generation is shown as a discharge proxy; it is not a cycle count or conventional capacity factor.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Cranberry Point Energy Storage has a reported capacity of 150 MW and an energy capacity of 300 MWh. Source: EIA Form 860M.
Cranberry Point Energy Storage is a Lithium iron phosphate battery energy storage facility in Plymouth County, MA, participating in the ISO-NE market.
Cranberry Point Energy Storage is in Plymouth County, MA, inside the ISO-NE balancing area.
Cranberry Point Energy Storage is operated by Cranberry Point Energy Storage LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Cranberry Point Energy Storage reports a commercial operation date of May 2025. Current status: operating. Source: EIA Form 860M.
Cranberry Point Energy Storage reported 82.5 GWh over the twelve months to 2026-04. For a storage plant this is reported gross generation — a discharge proxy, not a cycle count or a conventional capacity factor.
Cranberry Point Energy Storage interconnects at Carver Substation.
By capacity, Cranberry Point Energy Storage ranks #85 of 962 operating plants of the same technology nationally. It ranks #2 of 129 in MA.
Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.