Brazos River BESS (ERCOT-26INR0314) — Project Summary

Queue ID
ERCOT-26INR0314
Capacity
180.36 MW
Technology
Battery
Status
active
Location
Brazoria, TX
Region
ERCOT
Developer
Brazos River BESS LLC
IA Status
IA Executed

Brazos River BESS

ERCOT-26INR0314BetaActiveBatteryERCOTLBNL + Live

180.36 MW storage in Brazoria, TX · In queue since October 2023 · Proposed COD October 2027

BA: ERCOISO/RTO: ERCOTNERC: TRERC: ERCOT

180.36 MW

Capacity

1

Components

Battery

2y 9m

In Queue

IA Executed

IA Phase

Signed May 2025

Interconnection

Queue → IA

1y 7m

IA → COD

2y 5m

Total Duration

1y 7m

Construction75%
Queue EntryOct 4, 2023

Interconnection request submitted to ISO/RTO

Interconnection Study

ERCOT uses a serial "connect and manage" approach — fastest among major ISOs.

Typical: 18–30 months (fastest major ISO)

Interconnection AgreementMay 24, 2025

Interconnection agreement executed — binding commitment to build

Typical: 30–60 days (negotiation)

ConstructionCurrent

Project under construction

Typical: 6–18 months

Commercial Operation

Proposed COD: 2027-10-30

Cross-source intelligence
Beta
Medium confidence·5 sources·as of 2026-06-01
Expected COD
2027-10-30
From queue filing
Developer
Nexus Renewables U.S. Inc.
Filed as Brazos River BESS LLC
Status
IA Executed
IA Executed — interconnection agreement signed May 23, 2025 with Texas-New Mexico Power Company, project remains in planning/pre-construction phase
Financing
Unannounced
Key milestones
IA executedMay 23, 2025

ERCOT Standard Generation Interconnection Agreement executed between Brazos River BESS LLC and Texas-New Mexico Power Company

source
COD targetOct 30, 2027Most recent

Target commercial operation date per ERCOT capacity tracking (confirmed 2027)

source
About

The Brazos River BESS is a proposed 180.36 MW battery storage project located in Brazoria County, Texas. Developed by Brazos River BESS LLC, the project is interconnected within the ERCOT region and entered the interconnection queue as ERCOT-26INR0314 on October 4, 2023. Its proposed commercial operation date is October 30, 2027, and its interconnection status is currently in the Facility Study phase.

The proposed project is linked to the existing Brazos River BESS LLC operating plant (EIA ID 68814).

Generated from interconnection queue and public data sources

Development Risk

Realization risk from now to commercial operation — financing close, EPC and tax-equity counterparty mix, and COD probability vs the proposed date. The diligence view that determines whether the deal actually closes. Powered by InfraSure's development-stage modeling stack.

Available on the InfraSure platform

See the full development-risk decomposition for this project.

P(COD by stated date)
Financing close probability
EPC + tax-equity counterparty
Project Details

State

TX

County

Brazoria

Grid Region

ERCOT (Texas)

Market

ISO/RTO Member

Developer

Brazos River BESS LLC

Utility

Entity

ERCOT

Service Type

Point of Interconnection

Tap 138kV 39530 West Colombia LOCAL TNP - 39560 ANGLETON TNP

Data Source

LBNL + Live

Risk Analytics

Composite operating-phase risk view — what this asset's risk profile will look like once it commissions. Climate hazards across its operating life, expected generation variability, and offtake counterparty exposure, decomposed into a single decision-grade score. Powered by InfraRisk.

Available on the InfraSure platform

See the full risk decomposition + scenarios for this project.

Climate hazards (8+)
Generation variability (P10/P50/P90)
Offtake + transmission counterparty
Generation Forecast

Forward generation outlook — first-year production estimate and 10-year P50 trajectory, with probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.

Available on the InfraSure platform

See the full forecast + scenario decomposition for this project.

10-year P50 forecast
First-year output estimate
Weather + policy scenarios
Financial Forecast

Forward revenue, DSCR projection, and financing-close risk — conditioned on commercial operation. First-year DSCR, 10-year cashflow, and counterparty exposure across price and policy scenarios. Powered by InfraSure's asset cashflow stack.

Available on the InfraSure platform

See the full revenue + DSCR projection for this project.

10-year revenue projection
First-year DSCR
Financing close risk
Market Context
Approximate
ISO / RTO
ERCOT
Trading Hub
HB_HOUSTON
Hub Confidence
MEDIUM
Nearest Node (Estimated)
CAST_ESS_RN
POI Substation
West Columbia Local Substation

This project's market context is estimated from its Point of Interconnection. Hub and node assignments are approximate and based on geographic inference from the POI substation name.

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InfraSure platform

Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.