Marshall Spring Solar — Project Summary

Queue ID
ERCOT-25INR0353
Capacity
150 MW
Technology
Solar
Status
active
Location
Gillespie, TX
Region
ERCOT
Developer
Marshall Springs Solar, LLC
IA Status
Facility Study

Marshall Spring Solar

ERCOT-25INR0353BetaActiveSolarERCOTLBNL + Live

150 MW generation in Gillespie, TX · In queue since February 2023 · Proposed COD July 2026

150 MW

Capacity

1

Components

Solar

3y 2m

In Queue

Facility Study

IA Status

COD target: 2026

Interconnection Timeline

Total Duration

3y 5m

Facilities Study50%
Queue EntryFeb 20, 2023

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: 2026-07-01

Project Details

State

TX

County

Gillespie

Region

ERCOT

Developer

Marshall Springs Solar, LLC

Utility

—

Entity

ERCOT

Service Type

—

Point of Interconnection

New POI station between 7132 L_GILLES8_1Y - 7126 L_FERGUS8_1Y 138kV line and 7132 L_GILLES8_1Y - 7128 L_HORSBA8_1Y 138kV line, then loop in both lines into the new POI station.

Data Source

LBNL + Live

No news available for this project.