Borden County BESS
Aypa Power · Borden County · ERCOT
Borden County BESS is a battery energy storage facility with 150 MW of EIA-reported operating capacity and 300 MWh of reported energy capacity in Borden County, Texas, registered as EIA Plant ID 66804. Borden County Battery Energy Storage System LLC is the registered plant entity or operator. Its grid role is energy storage resource (merchant battery) — participates in ERCOT day‑ahead and ancillary services markets for energy arbitrage and ancillary services.
Overview
Key fields
- Power / energy
- 150 MW / 300 MWh
Reported plant capacity and configuration.
- Technology
- Batteries
Primary generation technology.
- Registry anchor
- Plant 66804
Borden County Battery Energy Storage System LLC · Borden County · ERCOT
- Storage duration
- 2 hours
Battery subsystem rating.
- Operating status
- Operating
Borden County BESS is operating.
Equipment
- 90 battery units
Installed equipment documented in public project records.
- Resource stack
- 1 resource
BOCO_ESS_ESR1
Profile
- Grid role
- Energy storage resource (merchant battery) — participates in ERCOT day‑ahead and ancillary services markets for energy arbitrage and ancillary services
- Physical build
- 150 MW battery energy storage facility. Aypa’s project announcement states the Borden County project as 150 MW / 300 MWh; EIA/interconnection records show the plant as a 150 MW operational BESS with first unit online August 1, 2024. Project reporting names Linxon (EPC), Canadian Solar’s e‑STORAGE as the battery supplier/integrator, and Sungrow as an equipment supplier (reporting: 90 Sungrow individual battery units).
Structured profile
- Reported capacity
- 150 MW
Batteries
- Energy
- 300 MWh
2-hour storage duration
- Location
- Borden County
ERCOT
- Operator
- Borden County Battery Energy Storage System LLC
- Asset role
- batteries
ERCOT · Borden County
- Owner
- Aypa Power
Aypa Power’s corporate site and press release state that Aypa Power 'develops, owns, and operates' utility-scale storage projects and that the November 8, 2023 portfolio financing 'supports... the Borden County project (a 150MW / 300MWh battery storage project in Texas)'. These statements identify Aypa Power as the project's developer/portfolio owner, while separate registry filings show the legal operator entity as the project-specific LLC.
Units and generators
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 1 | 150 MW 150 MW summer | Batteries Electricity used for energy storage · BA | Aug 2024 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 150 MW
- National rank
- #85
- TX rank
- #35
Monthly generation
Download CSVEIA-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.
ERCOT disclosed dispatch
1 ERCOT market resource · Battery / storage
Dispatch
3 mo through May 21, 2026Cycles/day is discharged energy vs. usable capacity (~377 MWh). Capacity factor is avg discharge vs. peak.
Output by hourlocal time · 90 days through May 21, 2026
Latest disclosed outputhourly · 2 weeks ending May 21, 2026
Generation from ERCOT's 60-Day SCED Disclosure (≈60-day lag), summed over this site's market resources.
Grid and market context
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Market registration
ERCOT public disclosuresOperating context
ERCOT market recordsNearby substations
HIFLD infrastructure inventoryCommercial, land, and environmental record
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Land and environmental record
Related parties and identifiers
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
Relationship graph
Drag organizations to explore the network. Select a node to pin its details and available page link.
Parties and identifiers
| Relationship | Entity | Basis |
|---|---|---|
| Owner / operator / developer | Owner / operator / developer for Borden County BESS | |
| Tax equity investor | Tax equity investor for Borden County BESS | |
| Market resources | BOCO_ESS_ESR1 | Linked ERCOT resources. |
| Grid selection | plant:plant-66804 | Canonical asset page /ercot/assets/plant/borden-county-bess. |
Reporting portfolio
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
Timeline and sources
Project milestones and public references behind the asset profile.
Project timeline
- Generator enters operationEIA-860
EIA-860 lists generator 1 with this operating date.
- Latest disclosed generation interval
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.
Sources
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