Coneflower Storage Project (ERCOT-23INR0425) — Project Summary

Queue ID
ERCOT-23INR0425
Capacity
170.85 MW
Technology
Battery
Status
active
Location
Chambers, TX
Region
ERCOT
Developer
Coneflower Storage Project LLC
IA Status
IA Executed

Coneflower Storage Project

ERCOT-23INR0425BetaActiveBatteryERCOTLBNL + Live

170.85 MW storage in Chambers, TX · In queue since December 2021 · Proposed COD June 2027

BA: ERCOISO/RTO: ERCOTNERC: TRERC: ERCOT

170.85 MW

Capacity

1

Components

Battery

4y 7m

In Queue

IA Executed

IA Phase

Signed Mar 2024

Interconnection

Queue → IA

2y 3m

IA → COD

3y 3m

Total Duration

2y 3m

Construction75%
Queue EntryDec 20, 2021

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 AgreementMar 25, 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: 2027-06-11

Cross-source intelligence
Beta
Medium confidence·4 sources·as of 2026-06-01
Expected COD
2027
From queue filing
Developer
Acciona Energy USA Global, LLC
Filed as Coneflower Storage Project LLC
Status
IA Executed
IA Executed — interconnection agreement signed March 2024, project remains in planning phase with no construction start announced
Financing
Unannounced
Key milestones
IA executedMar 25, 2024

Interconnection Agreement executed with ERCOT, CenterPoint amendments filed April 2024

source
COD targetJun 2027Most recent

ERCOT capacity planning documents list 170.85 MW battery project with 2027 target

source
About

The Coneflower Storage Project is a proposed 178.92 MW battery storage project located in Chambers County, Texas. The project, developed by Coneflower Storage Project LLC, is currently in the ERCOT interconnection queue as entry ERCOT-23INR0425, with a queue entry date of December 20, 2021. The proposed commercial operation date is June 11, 2027.

The project's Interconnection Agreement (IA) has been executed as of March 25, 2024. The Point of Interconnection (POI) is the 40855 JORDON 138 kV substation. The project has appeared in recent news coverage.

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

Chambers

Grid Region

ERCOT (Texas)

Market

ISO/RTO Member

Developer

Coneflower Storage Project LLC

Utility

Entity

ERCOT

Service Type

Point of Interconnection

40855 JORDON 138 kV

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.