Panhandle Flagship Solar 1 (27INR0022)

Panhandle Flagship Solar 1 is a 439.4 MW solar interconnection project in Carson, Texas with a current status of operational. It is proposed to connect at 345 kV Railhead Substation (RAILHEAD #79005).

439.4 MWCapacity
OperationalStatus
CarsonMarket
SolarTechnology

Project facts

Canonical namePanhandle Flagship Solar 1
Queue ID27INR0022
Statusoperational
Source statusSS Completed, FIS Started, IA
MarketCarson
TechnologySolar
Capacity439.4 MW
StateTexas
CountyCarson
Point of interconnection345 kV Railhead Substation (RAILHEAD #79005)
Requested (queue) date2023-03-13
Proposed in-service date
Operational date2031-06-30
Withdrawn date
DeveloperPanhandle Solar Group Operating Company LLC
Utility / transmission ownerERCOT

Cross-source records

This project is also observed in: Lawrence Berkeley National Laboratory — Queued Up interconnection dataset. interXdata links these source records without double-counting the project.

What changed

ObservedFieldOld valueNew valueMateriality
2026-07-31new_projectoperationalhigh

Explore related data

Source last checked2026-08-01
Data last materially changed2026-08-01
Page data generated2026-08-27

Provenance: ERCOT — Generation Interconnection Status (GIS) report. Values are normalized from public source records into the interXdata canonical warehouse; see each source for original filings.

Follow this project and get an alert when its status, capacity, developer, or schedule changes.

Start tracking with interXdata