Replace 1163.3 MW of Sabine Units 3, 4 & 1 with 2 on 1 Combined Cycle Gas Turbine facility; Sabine 1 (MISO-R1003) — Project Summary

Queue ID
MISO-R1003
Capacity
1166 MW
Technology
Gas
Status
active
Location
Orange, TX
Region
MISO
Developer
—
IA Status
—

Replace 1163.3 MW of Sabine Units 3, 4 & 1 with 2 on 1 Combined Cycle Gas Turbine facility; Sabine 1

MISO-R1003BetaActiveGasOtherMISOLBNL + Live

1,166 MW hybrid in Orange, TX · In queue since August 2020 · Proposed COD May 2026

BA: ERCOISO/RTO: MISONERC: TRERC: ERCOT

1,166 MW

Capacity

1

Components

Gas

6y 2m

In Queue

—

IA Status

COD target: 2026

Asset Intelligence Map

One connected view of the asset's ownership, operating or development evidence, grid context, commercial relationships, history, and forward outlook.

5 live dimensions
4 decision models

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Interconnection

Total Duration

5y 9m

Schedule

5 months past proposed COD

Pre-Study0%
Queue EntryAug 5, 2020

Interconnection request submitted to ISO/RTO

DPP Study

MISO uses the Definitive Planning Phase (DPP) process with 3 study phases.

Typical: 30–40 months (historical); 12 months target

Interconnection Agreement

Interconnection agreement not yet executed

Typical: 30–60 days (negotiation)

Commercial Operation

Proposed COD: 2026-05-31

Cross-source intelligence
Beta
Low confidence·3 sources·as of 2026-10-25
Expected COD
2026-05-31
From queue filing
Developer
—
Status
Active
Active in the MISO queue as of 31 Dec 2025 per aggregator; no evidence of construction, IA execution, or withdrawal found.
Financing
Unannounced
About

MISO-R1003 is a proposed natural gas development project in Orange County, Texas, that would replace 1,163.3 MW of generation at Sabine Units 3, 4 and 1 with a 2-on-1 combined cycle gas turbine facility. The project has a total proposed capacity of 1,166 MW. Although it is classified as a hybrid project, with technology listed as gas and "other," its only specified component is 1,166 MW of gas generation. The associated utility is Entergy Texas, Inc. The project is linked to the existing operating Sabine plant (EIA plant ID 3459), with a match confidence of 0.78.

The project is in the Midcontinent Independent System Operator (MISO) interconnection queue under queue ID MISO-R1003. It entered the queue on August 5, 2020, and its status is active. It has requested Network Resource Interconnection Service (NRIS). The proposed point of interconnection is the Sabine 138 kV and 230 kV substation, at bus numbers 334440, 334431 and 334433. The proposed commercial operation date is May 31, 2026. The provided data does not indicate the status of an interconnection agreement.

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.

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P(COD by stated date)
Withdrawal probability vs cohort
IA cluster risk
Project Details

State

TX

County

Orange

Grid Region

MISO (Midcontinent)

Market

ISO/RTO Member

Developer

—

Utility

ENTERGY TEXAS, INC.

Entity

MISO

Service Type

NRIS

Point of Interconnection

Sabine 138 & 230 kV (bus #334440, #334431, #334433

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.

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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.

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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.

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Revenue conditioned on COD
Financing close risk
Cohort DSCR comparison
Market Context
Approximate
ISO / RTO
MISO
Trading Hub
TEXAS.HUB
Hub Confidence
HIGH
Nearest Node (Estimated)
EES.SABINE1

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.

No insights available for this project.
InfraSure platform

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