Maryneal Wind (ERCOT-18INR0031) — Project Summary

Queue ID
ERCOT-18INR0031
Capacity
182.4 MW
Technology
Wind
Status
active
Location
Nolan, TX
Region
ERCOT
Developer
Maryneal Windpower, LLC
IA Status
IA Executed

Maryneal Wind

ERCOT-18INR0031BetaActiveWindERCOTLBNL + Live

182.4 MW generation in Nolan, TX · In queue since May 2016 · Proposed COD July 2025

BA: ERCOISO/RTO: ERCOTNERC: TRERC: ERCOT

182.4 MW

Capacity

1

Components

Wind

10y 2m

In Queue

IA Executed

IA Phase

Signed Jan 2020

Interconnection

Queue → IA

3y 8m

IA → COD

5y 6m

Total Duration

3y 8m

Schedule

11 months past proposed COD

Construction75%
Queue EntryMay 26, 2016

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 AgreementJan 31, 2020

Interconnection agreement executed — binding commitment to build

Typical: 30–60 days (negotiation)

ConstructionCurrent

Project under construction

Typical: 18–36 months

Commercial Operation

Proposed COD: 2025-07-31

Cross-source intelligence
Beta
High confidence·4 sources·as of 2026-06-01
Expected COD
2021-07-27
Queue date 3+ years staleQueue: 2025-07-31
Developer
Duke Energy Renewables
Filed as Maryneal Windpower, LLC
Status
Online
Online — commercial operation began July 27, 2021, serving Sprint (now T-Mobile) under 12-year PPA
Financing
Secured
Financing secured pre-construction; 12-year PPA with Sprint announced September 2019, construction completed by July 2021
Key milestones
Financing closeSep 2019

Sprint and Duke Energy Renewables signed 12-year PPA for 182-MW project

source
IA executedJan 31, 2020

Interconnection Agreement executed per LBNL queue data

source
COD targetJul 27, 2021Most recent

Commercial operation commenced at Maryneal Windpower facility

source
About

The Maryneal Wind project is a proposed 182.4 MW wind generation facility in Nolan County, Texas. Developed by Maryneal Windpower, LLC, the project consists entirely of wind generation. It is listed in the ERCOT interconnection queue as entry ERCOT-18INR0031, with a queue entry date of May 26, 2016, and a proposed commercial operation date of July 31, 2025. The project's interconnection agreement (IA) was executed on January 31, 2020.

The proposed project is linked to the existing Maryneal Windpower operating plant (EIA plant ID 62836). Recent news coverage has discussed the project, with articles focusing on industry trends and development updates.

Generated from interconnection queue and public data sources

ERCOT QueueEIA Plant Profile
Development Risk

Realization history for this asset — final cost vs plan, COD slip vs original date, and construction duration vs cohort. Retrospective context for the operating risk view above. Powered by InfraSure's development-stage modeling stack.

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See the full development-risk decomposition for this project.

Final cost vs plan
COD vs original date
Construction duration vs cohort
Project Details

State

TX

County

Nolan

Grid Region

ERCOT (Texas)

Market

ISO/RTO Member

Developer

Maryneal Windpower, LLC

Utility

—

Entity

ERCOT

Service Type

—

Point of Interconnection

71050 Bitter Creek 345kV

Data Source

LBNL + Live

Risk Analytics

Composite operating risk view for this asset — climate hazards across its remaining operating life, observed 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 — 10-year P50 trajectory accounting for degradation, observed curtailment, and market conditions, 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
Degradation-adjusted CF
Weather + policy scenarios
Financial Forecast

Forward revenue, DSCR bands, and refinancing risk for this asset — 10-year cashflow projected under price, demand, 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 cashflow horizon
P10 / P50 / P90 DSCR bands
Price + demand + policy scenarios
Market Context
Approximate
ISO / RTO
ERCOT
Trading Hub
HB_WEST
Hub Confidence
MEDIUM
Nearest Node (Estimated)
SWTWN4_WND45
POI Substation
Sweetwater Wind 5 Substation

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.

Linked EIA Plant

Maryneal WindpowerEIA 62836

High match79% confidence
View Plant
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InfraSure platform

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