SMT Ironman Battery Storage Plant
SMT Ironman BESS LLCBrazoria County
SMT Ironman is a battery project in Alvin, Texas, listed by EIA at 304 MW of nameplate capacity. A March 2024 FERC filing described approximately 441 MWh and said the project had not yet reached commercial operation; no later operating-status confirmation is cited here.
Mapped infrastructure geometry associated with this asset.
EIA plant 67737 · Inventory for Aug 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| SMTIR | Batteries | Operating | 304 | 440.8 |
Similar plants ranked by technology, capacity, and distance.
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| SMTIR | 304 MW 304 MW summer | Batteries Electricity used for energy storage · BA | Jun 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.
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.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
Project milestones and public references behind the asset profile.
CenterPoint Energy completed a facility study and interconnection development plan for the SMT Ironman Storage Generation Project. The study guided the OASIS Substation expansion design and interconnection configuration.
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.
2 ERCOT market resources · Battery / storage
Cycles/day is discharged energy vs. usable capacity (~555 MWh). Capacity factor is avg discharge vs. peak.
Observed ERCOT settlement prices at JAR_RN over 365 days (2025-10-12 to 2026-10-11).
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.
SMT Ironman BESS LLC and CenterPoint Energy Houston Electric, LLC executed an ERCOT Standard Generation Interconnection Agreement (SGIA) effective on this date.
SMT Energy LLC announced the sale of an approximately 400 MW portfolio of ERCOT-connected battery energy storage projects to UBS Asset Management. The SMT Ironman Battery Storage Plant, located in Brazoria County, Texas, was included in the portfolio. All battery storage projects in the portfolio were expected to start commercial operations in 2024 and 2025. Transaction value was undisclosed.
SMT Ironman BESS LLC filed its Notice of Self-Certification of Exempt Wholesale Generator (EWG) status with the Federal Energy Regulatory Commission (FERC). The filing stated that the facility was still under development, had not yet achieved commercial operation, and was expected to begin generating test energy in the fourth quarter of 2024. The filing identified the facility as approximately 304 MW / 441 MWh.
Amendment One to the ERCOT Standard Generation Interconnection Agreement became effective. The amendment documented the 94-inverter configuration, 308.4 MW planned capacity, 307 MW projected net dependable capability per ERCOT requirements, and 345 kV interconnection voltage.
Amendment One to the ERCOT Standard Generation Interconnection Agreement was executed by both parties: CenterPoint Energy Houston Electric, LLC and SMT Ironman BESS LLC. Signatory for SMT Ironman was Ken-Ichi Hino, Authorized Signatory, UBS Asset Management (Americas).
EIA-860 lists generator SMTIR with this operating date.
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.
SMT Ironman Battery Storage Plant reports 304 MW battery storage of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Aug 2026.
SMT Ironman Battery Storage Plant is a batteries facility in Brazoria County, TX, participating in the ERCOT market.
SMT Ironman Battery Storage Plant is in Brazoria County, TX, inside the ERCOT balancing area.
SMT Ironman Battery Storage Plant is operated by SMT Ironman BESS LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
SMT Ironman Battery Storage Plant reported 147.5 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.
By capacity, SMT Ironman Battery Storage Plant ranks #15 of 1,061 operating plants of the same technology nationally. It ranks #3 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.