# Anemoi Energy Storage

ERCOT asset profile · https://askthegrid.com/assets/facilities/anemoi-energy-storage

Anemoi Energy Storage, LLC · Hidalgo County · ERCOT

Anemoi Energy Storage is a battery energy storage facility with 200 MW of EIA-reported operating capacity and 400 MWh of reported energy capacity in Hidalgo County, Texas, registered as EIA Plant ID 67236. Anemoi Energy Storage, LLC is the registered plant entity or operator. Public project records list 176 battery units, and 59 PCS units. The facility interconnects at Pomelo Substation. Its grid role is grid-scale battery energy storage.

## Profile

- **Grid role:** Grid-scale battery energy storage (energy shifting / ancillary services)
- **Grid connection:** Pomelo Substation · American Electric Power (AEP).
- **Context:** Anemoi Energy Storage is a 200 MW / 400 MWh standalone battery project in Hidalgo County, Texas; industry sources report it entered operation in 2024 and (per a national project listing) is among the U.S. battery plants (capacity rank cited by a project database).
- **Physical build:** 200 MW / 400 MWh AC battery energy storage system (two-hour duration) located on roughly 13 acres near Edinburg, Hidalgo County, Texas. Project configuration (sponsor / financier documentation) lists 176 manufacturer-integrated liquid‑cooling battery units (each 2,752 kWh) and 59 power conversion systems; includes a 216 MVA transformer and a ~1,100 ft gen‑tie to the Pomelo 345 kV substation. Began commercial operations in summer 2024; EPC work for the project was completed by Gridworks for Plus Power.
- **Financing:** October 2023: First Citizens Bank coordinated $200 million in construction and term financing for the 200 MW / 400 MWh Anemoi project (First Citizens-led group); NADBank joined that financing and had earlier proposed a market-rate loan of up to US$40 million (NADBank draft, Jul 6, 2023).

## Metrics

- **Power / energy:** 200 MW / 400 MWh — Reported plant capacity and configuration.
- **Technology:** Batteries — Primary generation technology.
- **Registry anchor:** Plant 67236 — Anemoi Energy Storage, LLC · Hidalgo County · ERCOT
- **Storage duration:** 2 hours — Battery subsystem rating.
- **Operating status:** Operating — Anemoi Energy Storage is operating.
- **Grid connection:** Pomelo Substation — American Electric Power (AEP)
- **Equipment:** 176 battery units / 59 PCS units — Installed equipment documented in public project records.
- **Project financing:** $200M — October 2023: First Citizens Bank coordinated $200 million in construction and term financing for the 200 MW / 400 MWh Anemoi project (First Citizens-led group); NADBank joined that financing and had earlier proposed a market-rate loan of up to US$40 million (NADBank draft, Jul 6, 2023).
- **Resource stack:** 1 resource — ANEM_ESS_ESR1

## Facts

- **Reported capacity:** 200 MW — Batteries · confidence: high
- **Energy:** 400 MWh — 2-hour storage duration · confidence: medium
- **Interconnection:** Pomelo Substation — American Electric Power (AEP) · confidence: medium
- **Location:** Hidalgo County — ERCOT · confidence: high
- **Operator:** Anemoi Energy Storage, LLC · confidence: high

## Sources

- [Combo & Single Model ESR Names](https://www.ercot.com/files/docs/2025/02/14/Single-Model-ESR-Names_01Oct2025-as-of-10-3-25-1545.xlsx) — ercot.com · regulatory — Feb 14, 2025 — The Single Model Energy Strorage Resource Names … during RTCB Market Trials. ANEM_ESS BESS1 ANEM_ESS_LD1 ESR1 ANEM_ESS_ESR1
- [Single Model ESR Names 01Oct 2025 as of 10 3 25 1545](https://ercot.com/files/docs/2025/02/14/Single-Model-ESR-Names_01Oct2025-as-of-10-3-25-1545.xlsx) — ercot.com · regulatory — Feb 14, 2025 — The Single Model Energy Strorage Resource Names … during RTCB Market Trials. ANEM_ESS BESS1 ANEM_ESS_LD1 ESR1
- [Anemoi Energy Storage](https://www.anemoienergystorage.com/) — anemoienergystorage.com · other — 0 About the Project Anemoi Energy Storage is ideally located on approximately 13 acres of land near Edinburg, Texas, where it interconnects to critical transmission infrastructure at AEP’s Pomelo Substation. Learn More
- [anemoienergystorage.com](https://anemoienergystorage.com/) — anemoienergystorage.com · other — Anemoi Energy Storage is ideally located on approximately 13 acres of land near Edinburg, Texas, Contact anemoi@pluspower.com
- [NADBank joins First Citizens Bank-led financing for an...](https://nadbank.org/news/press-release/nadbank-joins-first-citizens-bank-led-financing-for-an-energy-storage-project-in-hidalgo-county-texas) — nadbank.org · other — Oct 18, 2023 — NADBank joins First Citizens Bank-led financing for an Energy Storage Project in Hidalgo County, Texas.
- [Companies Announce Major Energy Storage Projects in...](https://www.powermag.com/companies-announce-major-energy-storage-projects-in-texas/) — powermag.com · other — Dec 18, 2025 — Hidalgo County also is home to the 200-MW/400-MWh Anemoi battery energy storage project developed and operated by Plus Power, an installation
- [NADBank Joins First Citizens Bank-led Financing for an Energy...](https://www.nacleanenergy.com/energy-storage/nadbank-joins-first-citizens-bank-led-financing-for-an-energy-storage-project-in-hidalgo-county-texas) — nacleanenergy.com · other — Energy Storage News Briefs NADBank Joins First. Anemoi Energy Storage, LLC, a special-purpose

---

Canonical page: https://askthegrid.com/assets/facilities/anemoi-energy-storage
Website: [Plus Power](https://pluspower.com/)
Profile published: 2026-07-17T03:33:58.756Z
Source: Ask the Grid — https://askthegrid.com/