Longbow BESS
Tokyo Gas AmericaBrazoria CountyERCOT
Longbow BESS, LLC is an EIA-listed batteries facility with 174.0 MW in Brazoria County, Texas, registered as EIA Plant ID 67083. Tokyo Gas America acquired the project from Clean Capital Partners; Longbow BESS, LLC is the registered plant entity. DEPCOM Power provided EPC and LTSA services. The project reached substantial completion in February 2025 and was expected to begin commercial operation in 2024.
Mapped infrastructure geometry associated with this asset.
Batteries
Longbow BESS, LLC is operating.
ERCOT
EIA plant 67083 · Inventory for Sep 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| LBBES | Batteries | Operating | 174 | 407.4 |
Similar plants ranked by technology, capacity, and distance.
Current generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| LBBES | 174 MW 174 MW summer | Batteries BA | Oct 2024 | 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.
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
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Project milestones and public references behind the asset profile.
Registry and project sources list Longbow BESS as operational in 2024.
ERCOT · Brazoria County
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.
1 ERCOT market resource · Battery / storage
Cycles/day is discharged energy vs. usable capacity (~359 MWh). Capacity factor is avg discharge vs. peak.
Observed ERCOT settlement prices at LON_RN1 over 365 days (2025-10-26 to 2026-10-25).
The TB2 figure is a price benchmark, not revenue: it values one perfect-foresight cycle per day between the 2 cheapest and 2 dearest hours of each day, gross of round-trip losses, and excludes ancillary services. It describes what this node’s price shape was worth over the window — it is not this asset’s realized capture, and no dispatch is assumed or modelled.
Matched to the latest available ERCOT generation-interconnection queue record. Queue status and completion dates describe the queue record; operating status is verified separately against plant and market registrations.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
Marathon Capital announced its advisory role reporting Tokyo Gas Co., Ltd.'s 100% acquisition of the 174 MW / 348 MWh Longbow BESS.
Foss & Company announced a partnership with Tokyo Gas America and Clean Capital Partners on the Longbow BESS project and was presented as project tax-equity / financier.
EIA-860 lists generator LBBES with this operating date.
A sector report (February 2025) cites approximately $118.5 million of Investment Tax Credits associated with the Longbow BESS project.
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Longbow BESS reports 174 MW battery storage of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.
Longbow BESS is a batteries facility in Brazoria County, TX, participating in the ERCOT market.
Longbow BESS is in Brazoria County, TX, inside the ERCOT balancing area.
Longbow BESS is operated by Longbow BESS, LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Longbow BESS reported 96 GWh over the twelve months to 2026-07. For a storage plant this is reported gross generation — a discharge proxy, not a cycle count or a conventional capacity factor.
Longbow BESS interconnects at 100-DAB-B.
By capacity, Longbow BESS ranks #92 of 1,061 operating plants of the same technology nationally. It ranks #35 of 254 in TX.
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.
