Charolais Solar (ERCOT-21INR0380) — Project Summary

Queue ID
ERCOT-21INR0380
Capacity
261.63 MW
Technology
Solar+Battery
Status
active
Location
Matagorda, TX
Region
ERCOT
Developer
RWE Solar Development, LLC
IA Status
Facility Study

Charolais Solar

ERCOT-21INR0380BetaActiveSolarBatteryERCOTLBNL + Live

261.63 MW hybrid in Matagorda, TX · In queue since August 2019 · Proposed COD December 2026

BA: ERCOISO/RTO: ERCOTNERC: TRERC: ERCOT

261.63 MW

Capacity

1

Components

Solar

6y 11m

In Queue

Facility Study

IA Phase

COD target: 2026

Interconnection

Total Duration

7y 4m

Facilities Study50%
Queue EntryAug 5, 2019

Interconnection request submitted to ISO/RTO

Interconnection StudyCurrent

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

Typical: 18–30 months (fastest major ISO)

Interconnection Agreement

Interconnection agreement not yet executed

Typical: 30–60 days (negotiation)

Commercial Operation

Proposed COD: 2026-12-15

Cross-source intelligence
Beta
Low confidence·4 sources·as of 2026-06-01
Expected COD
2026-12-15
From queue filing
Developer
RWE
Filed as RWE Solar Development, LLC
Status
Active
Active — Facility Study stage, no recent construction or financing announcements found
Financing
Unannounced
Key milestones
IA executedAug 5, 2019Most recent

Queue entry date; currently at Facility Study stage with no IA executed yet

source
About

Charolais Solar is a proposed 261.63 MW solar generation project located in Matagorda County, Texas. The project, developed by RWE Solar Development, LLC, is in the ERCOT interconnection queue as entry ERCOT-21INR0380, with a queue entry date of August 5, 2019. The proposed commercial operation date is December 15, 2026.

The project's interconnection status is currently in the Facility Study phase. The point of interconnection is at the tap 345kV 44000 W A Parish - 5915 STP. The project has appeared in recent news coverage.

Generated from interconnection queue and public data sources

Development Risk

Realization risk before commercial operation — cluster-study clearance, IA timing, counterparty mix, and withdrawal probability vs cohort. The diligence view that determines whether this project is worth pursuing. 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)
Withdrawal probability vs cohort
IA cluster risk
Project Details

State

TX

County

Matagorda

Grid Region

ERCOT (Texas)

Market

ISO/RTO Member

Developer

RWE Solar Development, LLC

Utility

Entity

ERCOT

Service Type

Point of Interconnection

tap 345kV 44000 W A Parish - 5915 STP

Data Source

LBNL + Live

Risk Analytics

Composite operating-phase risk view — what this asset's risk profile would look like once it reaches commercial operation. 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 — what this project would produce assuming it reaches commercial operation. Probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios, conditioned on the proposed COD. Powered by InfraSure's generation modeling stack.

Available on the InfraSure platform

See the full forecast + scenario decomposition for this project.

P50 conditioned on COD
Capacity factor vs cohort
Weather + policy scenarios
Financial Forecast

Forward revenue, DSCR projection, and financing-close risk — conditioned on commercial operation. The bankability view that determines whether the deal clears its covenants once online. Powered by InfraSure's asset cashflow stack.

Available on the InfraSure platform

See the full revenue + DSCR projection for this project.

Revenue conditioned on COD
Financing close risk
Cohort DSCR comparison
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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InfraSure platform

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