Cartwheel BESS 1 (ERCOT-23INR0494) — Project Summary

Queue ID
ERCOT-23INR0494
Capacity
154.2 MW
Technology
Battery
Status
active
Location
Hopkins, TX
Region
ERCOT
Developer
Cartwheel BESS, LLC
IA Status
IA Executed

Cartwheel BESS 1

ERCOT-23INR0494BetaActiveBatteryERCOTLBNL + Live

154.2 MW storage in Hopkins, TX · In queue since June 2022 · Proposed COD December 2025

BA: ERCOISO/RTO: ERCOTNERC: TRERC: ERCOT

154.2 MW

Capacity

1

Components

Battery

4y 1m

In Queue

IA Executed

IA Phase

Signed Nov 2023

Interconnection

Queue → IA

1y 5m

IA → COD

2y 1m

Total Duration

1y 5m

Schedule

7 months past proposed COD

Construction75%
Queue EntryJun 2, 2022

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 AgreementNov 10, 2023

Interconnection agreement executed — binding commitment to build

Typical: 30–60 days (negotiation)

ConstructionCurrent

Project under construction

Typical: 6–18 months

Commercial Operation

Proposed COD: 2025-12-23

Cross-source intelligence
Beta
High confidence·5 sources·as of 2026-06-01
Expected COD
2025
Developer
RWE
Filed as Cartwheel BESS, LLC
Status
Construction
Construction — groundbreaking October 2024, commissioning planned for 2025 per RWE
Financing
Secured
Construction financing secured (groundbreaking October 2024), part of RWE's $20+ billion US clean energy investment program
Key milestones
IA executedNov 10, 2023

Generation Interconnection Agreement executed between Oncor and Cartwheel BESS, LLC

source
GroundbreakingOct 2, 2024

RWE breaks ground on Cartwheel BESS 1 as part of 450 MW / 900 MWh Texas BESS portfolio

source
COD target2025Most recent

Commissioning planned for 2025 per RWE press release

source
About

Cartwheel BESS 1 is a proposed energy storage project located in Hopkins County, Texas, with a total capacity of 154.2 MW. The project, developed by Cartwheel BESS, LLC, consists entirely of battery storage. It is currently in the ERCOT interconnection queue as entry ERCOT-23INR0494, with a queue entry date of June 2, 2022, and a proposed commercial operation date of December 23, 2025.

The project has an Interconnection Agreement (IA) executed on November 10, 2023. The Point of Interconnection (POI) is Tap 345kV 1697 Sulphur Springs Switch _x0013_ 2464 Cash Switch.

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

Hopkins

Grid Region

ERCOT (Texas)

Market

ISO/RTO Member

Developer

Cartwheel BESS, LLC

Utility

Entity

ERCOT

Service Type

Point of Interconnection

Tap 345kV 1697 Sulphur Springs Switch – 2464 Cash Switch

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_NORTH
Hub Confidence
LOW

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.