# Fort Duncan BESS

ERCOT asset profile · https://askthegrid.com/assets/facilities/fort-duncan-bess

## Current generation inventory

EIA plant 67752 · Inventory reporting month: 2026-08.

- batteries: 102.6 MW operating nameplate
- Capacity basis: operating_generator_nameplate_mw
- Source inventory: [EIA-860M workbook (preliminary)](https://www.eia.gov/electricity/data/eia860m/xls/august_generator2026.xlsx)
- Inventory retrieved: 2026-10-10T22:49:53.020309+00:00
- Filed coordinate (longitude, latitude): -100.4035, 28.69954
- OSM extract: 2026-10-09T20:21:04Z
- OSM mapped edit: 2026-08-09 00:03:27+00:00
- Map prepared: 2026-10-10T23:05:25.405936+00:00

Battery power (MW) and stored energy (MWh) are separate measures. Shared physical-site membership does not establish electrical connectivity, settlement or a common export limit.

## Reviewed overview

Fort Duncan BESS is a standalone merchant battery energy storage facility located in Eagle Pass, Maverick County, Texas, near the U.S.–Mexico border. It comprises 88 utility-scale lithium iron phosphate battery units, each with 2,750 kWh capacity and integrated liquid cooling, distributed across 31.8 acres. The facility has a nameplate capacity of 102.6 MW (EIA listing) and provides 200 MWh of energy storage over a two-hour duration. It interconnects to the ERCOT grid through LCRA Transmission Services Corporation's Sunglow switchyard via a 138-kV gen-tie line and associated step-up and switchyard substations. Fort Duncan BESS reached commercial operation in June 2025 and was acquired by Hunt Energy Network from Recurrent Energy in February 2026. The facility operates on a merchant basis, storing and dispatching electricity in response to ERCOT market demand and providing grid support and reliability services to relieve local congestion and system stress.

## Reviewed metrics

- **Nameplate capacity:** 102.6 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 67752 — plant-67752

## Facts

- **Technology:** Batteries
- **Operator:** Hunt Energy Network, L.L.C.

## Related parties

- **Owner / operator:** Hunt Energy Network, L.L.C. — Current owner and operator ([source](https://huntenergynetwork.com/))
- **Former owner / developer:** Recurrent Energy, LLC — Original developer and seller ([source](https://recurrentenergy.com/))
- **Parent company:** Canadian Solar Inc. — Parent company of original developer ([source](https://www.canadiansolar.com/))
- **EPC contractor / construction contractor:** Burns & McDonnell — Engineering, procurement, and construction contractor ([source](https://www.burnsmcd.com/))
- **Equipment supplier:** e-STORAGE (Canadian Solar) — Battery energy storage system supplier ([source](https://csestorage.com/))
- **Transmission owner / interconnecting utility:** LCRA Transmission Services Corporation — Interconnecting transmission owner ([source](https://www.lcra.org/))
- **Balancing authority / market operator:** Electric Reliability Council of Texas, Inc. (ERCOT) — Market and grid operator ([source](https://www.ercot.com/))
- **Lender:** North American Development Bank (NADBank) — Project lender ([source](https://nadbank.org/))

## Sources

- [huntconsolidated.com](http://huntconsolidated.com/hunt-energy-network-acquires-100mw-battery-from-recurrent-energy) — huntconsolidated.com · public_source — Source retained for exact-record publication review.
- [interchange.puc.texas.gov](https://interchange.puc.texas.gov/Documents/57477_142_1499099.PDF) — interchange.puc.texas.gov · authoritative — Source retained for exact-record publication review.
- [interchange.puc.texas.gov](https://interchange.puc.texas.gov/Documents/57488_1_1451814.PDF) — interchange.puc.texas.gov · authoritative — Source retained for exact-record publication review.
- [investors.canadiansolar.com](https://investors.canadiansolar.com/news-releases/news-release-details/recurrent-energy-completes-sale-200-mwh-battery-storage-facility) — investors.canadiansolar.com · public_source — Source retained for exact-record publication review.
- [mbrweb.ferc.gov](https://mbrweb.ferc.gov/SearchlkpEIA/Index?page=810) — mbrweb.ferc.gov · authoritative — Source retained for exact-record publication review.
- [nadbank.org](https://nadbank.org/cofidan-projects/fort-duncan-energy-storage-project-in-maverick-county-texas) — nadbank.org · public_source — Source retained for exact-record publication review.
- [nadbank.org](https://nadbank.org/hubfs/projects/bd_2024_xx_fort_duncan_project_proposal_eng_published.pdf?hsLang=en) — nadbank.org · public_source — Source retained for exact-record publication review.
- [pv-magazine-usa.com](https://pv-magazine-usa.com/2025/03/18/texas-storage-project-secures-183-million-in-financing-and-tax-equity/) — pv-magazine-usa.com · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/fort-duncan-bess
Website: [Hunt Energy Network, L.L.C.](https://huntenergynetwork.com/)

Source: Ask the Grid — https://askthegrid.com/