Senator Aggreko Solar (ERCOT-26INR0311) — Project Summary

Queue ID
ERCOT-26INR0311
Capacity
251 MW
Technology
Solar+Battery
Status
active
Location
Maverick, TX
Region
ERCOT
Developer
Senator Aggreko Solar LLC
IA Status
Facility Study

Senator Aggreko Solar

ERCOT-26INR0311BetaActiveSolarBatteryERCOTLBNL + Live

251 MW hybrid in Maverick, TX · In queue since February 2024 · Proposed COD March 2029

BA: ERCOISO/RTO: ERCOTNERC: TRERC: ERCOT

251 MW

Capacity

1

Components

Solar

2y 5m

In Queue

Facility Study

IA Phase

Signed Dec 2025

Interconnection

Queue → IA

1y 10m

IA → COD

3y 3m

Total Duration

1y 10m

Construction50%
Queue EntryFeb 2, 2024

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 AgreementDec 31, 2025

Interconnection agreement executed — binding commitment to build

Typical: 30–60 days (negotiation)

ConstructionCurrent

Project under construction

Typical: 18–30 months

Commercial Operation

Proposed COD: 2029-03-31

Cross-source intelligence
Beta
Medium confidence·3 sources·as of 2026-06-01
Expected COD
2029-03-31
From queue filing
Developer
Senator Aggreko Solar LLC
From queue filing
Status
Active
Active — Facility Study stage, IA execution targeted for end of 2025
Financing
Unannounced
Key milestones
IA executedJan 2026

ERCOT Standard Generation Interconnection Agreement filed with PUC between LCRA TSC and Senator Aggreko Solar/Storage LLCs

source
COD targetMar 31, 2029Most recent

ERCOT capacity chart lists 251 MW solar project with 2029 COD target in Maverick County

source
About

The Senator Aggreko Solar project is a proposed 251 MW solar generation project located in Maverick County, Texas. The project, developed by Senator Aggreko Solar LLC, is interconnected within the ERCOT region under queue ID ERCOT-26INR0311. The project entered the interconnection queue on February 2, 2024, with a proposed commercial operation date of March 31, 2029.

The project's interconnection status is currently in the Facility Study phase. The point of interconnection is the 138 kV Rosita Creek Substation (#78015). The Senator Aggreko Solar 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

Maverick

Grid Region

ERCOT (Texas)

Market

ISO/RTO Member

Developer

Senator Aggreko Solar LLC

Utility

Entity

ERCOT

Service Type

Point of Interconnection

138 kV Sunglow Substation (#78016)

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_WEST
Hub Confidence
MEDIUM
Nearest Node (Estimated)
FTDUNCAN_RN
POI Substation
Rosita Creek 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.

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InfraSure platform

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