Mineral Wells East BESS is a 9.9 MW battery-storage facility located in Mineral Wells, Palo Pinto County, Texas, within the ERCOT balancing authority. The facility is operated by HEN Infrastructure, L.L.C. It is interconnected through Oncor in ERCOT's North congestion zone and comprises a single 9.9 MW battery-storage unit with 9.9 MWh energy capacity and one-hour duration.
Mapped infrastructure geometry associated with this asset.
EIA plant 66788 · Inventory for Aug 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| MNWLE | Batteries | Operating | 9.9 | 9.9 |
Similar plants ranked by technology, capacity, and distance.
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| MNWLE | 9.9 MW 9.9 MW summer | Batteries Electricity used for energy storage · BA | Mar 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.
Manulife committed $225 million to form HEN Infrastructure as a venture with Hunt Energy Network to develop and operate distribution-level ERCOT storage assets.
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 (~11 MWh). Capacity factor is avg discharge vs. peak.
Observed ERCOT settlement prices at MNWL_BESS_RN over 365 days (2025-10-22 to 2026-10-21).
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.
| Largest reported plants | Capacity | State | |
|---|---|---|---|
| Olney | 19.8 MW | TX | |
| Toyah Power Station | 10.4 MW | TX | |
| Russek | 9.9 MW | TX | |
| Junction (TX) | 9.9 MW | TX | |
| Mineral Wells East BESSCurrent | 9.9 MW | TX | |
| Gomez | 9.9 MW | TX | |
| Caterina | 9.9 MW | TX | |
| Lufkin South BESS | 9.9 MW | TX |
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
View full reporting portfolioEIA/FERC records show Mineral Wells East BESS, plant code 66788, generator ID MNWLE, with HEN Infrastructure, L.L.C. as the registered utility, active date November 1, 2023.
Texas Public Utility Commission generating-capacity report lists Mineral Wells East as a 9.9 MW battery-storage generating resource with commercial generating-operation date of February 16, 2024.
EIA-860 lists generator MNWLE 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.
Mineral Wells East BESS reports 9.9 MW battery storage of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Aug 2026.
Mineral Wells East BESS is a batteries facility in Palo Pinto County, TX, participating in the ERCOT market.
Mineral Wells East BESS is in Palo Pinto County, TX, inside the ERCOT balancing area.
Mineral Wells East BESS is operated by HEN Infrastructure, L.L.C. according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Mineral Wells East BESS reported 885 MWh over the twelve months to 2024-12. For a storage plant this is reported gross generation — a discharge proxy, not a cycle count or a conventional capacity factor.
By capacity, Mineral Wells East BESS ranks #554 of 1,061 operating plants of the same technology nationally. It ranks #165 of 254 in TX.