Brotherton Storage (ERCOT-25INR0432) — Project Summary

Queue ID
ERCOT-25INR0432
Capacity
176.13 MW
Technology
Battery
Status
active
Location
Anderson, TX
Region
ERCOT
Developer
BT Brotherton Storage, LLC
IA Status
IA Executed

Brotherton Storage

ERCOT-25INR0432BetaActiveBatteryERCOTLBNL + Live

176.13 MW storage in Anderson, TX · In queue since April 2023 · Proposed COD May 2027

BA: ERCOISO/RTO: ERCOTNERC: TRERC: ERCOT

176.13 MW

Capacity

1

Components

Battery

3y 3m

In Queue

IA Executed

IA Phase

Signed Aug 2024

Interconnection

Queue → IA

1y 4m

IA → COD

2y 9m

Total Duration

1y 4m

Construction75%
Queue EntryApr 19, 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 AgreementAug 6, 2024

Interconnection agreement executed — binding commitment to build

Typical: 30–60 days (negotiation)

ConstructionCurrent

Project under construction

Typical: 6–18 months

Commercial Operation

Proposed COD: 2027-05-01

Cross-source intelligence
Beta
High confidence·3 sources·as of 2026-06-01
Expected COD
2026
Queue date 1–2 years staleQueue: 2027-05-01
Developer
Energy Vault Holdings
Recent ownership change
Status
Active
Active — IA executed August 2024, acquired by Energy Vault March 2026, targeting 2026 COD per ERCOT capacity charts
Financing
Unannounced
Ownership history
  1. 2026-03·BT Brotherton Storage, LLCEnergy Vault Holdings, Inc.source
Key milestones
IA executedAug 6, 2024

Interconnection Agreement executed with ERCOT

source
COD target2026

Expected online date per ERCOT capacity tracking

source
Ownership changeMar 24, 2026Most recent

Energy Vault Holdings acquired 175 MW battery storage project in Texas

source
About

The Brotherton Storage project is a proposed 176.13 MW battery storage project located in Anderson County, Texas. Developed by BT Brotherton Storage, LLC, the project consists entirely of battery storage. It is interconnected within the ERCOT region under queue ID ERCOT-25INR0432, with an interconnection request date of April 19, 2023, and a proposed commercial operation date of May 1, 2027.

The project's interconnection agreement (IA) has been executed as of August 6, 2024. The point of interconnection is the 6937 Tucker Sub 138kV substation. This proposed project is linked to an existing operating plant named Brotherton Storage (EIA plant ID 68165). The confidence level of this match is 79%.

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

Anderson

Grid Region

ERCOT (Texas)

Market

ISO/RTO Member

Developer

BT Brotherton Storage, LLC

Utility

Entity

ERCOT

Service Type

Point of Interconnection

6937 Tucker Sub 138kV

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.

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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_NORTH
Hub Confidence
HIGH

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