Starr Solar Ranch
136.73 MW hybrid in Starr, TX · In queue since November 2018 · Proposed COD August 2025
136.73 MW
Capacity
1
Components
Solar
7y 8m
In Queue
IA Executed
IA Phase
Signed Oct 2020
Queue → IA
1y 11m
IA → COD
4y 10m
Total Duration
1y 11m
Schedule
11 months past proposed COD
Interconnection request submitted to ISO/RTO
ERCOT uses a serial "connect and manage" approach — fastest among major ISOs.
Typical: 18–30 months (fastest major ISO)
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 18–30 months
Proposed COD: 2025-08-14
$348M financing package completed for 288MW Texas portfolio including Starr Solar
sourceStarr Solar Farm and Second Division Solar Farm come online, 288MW portfolio operational
sourceFormal opening ceremony held in Starr County for operational solar farm
sourceThe Starr Solar Ranch is a proposed solar generation project located in Starr County, Texas, within the ERCOT region. The project, developed by Starr Solar Ranch 1 LLC, has a total capacity of 136.73 MW. It is listed in the ERCOT interconnection queue as entry 20INR0216, with an original queue entry date of November 7, 2018, and a proposed commercial operation date of August 14, 2025. The project's interconnection agreement was executed on October 1, 2020.
The proposed project is linked to the existing Starr Solar Ranch operating plant (EIA ID 65975). Recent news coverage has highlighted the project, with 15 articles appearing in industry, grid, and development publications.
Generated from interconnection queue and public data sources
Realization risk from now to commercial operation — financing close, EPC and tax-equity counterparty mix, and COD probability vs the proposed date. The diligence view that determines whether the deal actually closes. Powered by InfraSure's development-stage modeling stack.
See the full development-risk decomposition for this project.
State
TX
County
Starr
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Starr Solar Ranch 1 LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
8795 Roma 138kV
Data Source
LBNL + Live
Composite operating-phase risk view — what this asset's risk profile will look like once it commissions. Climate hazards across its operating life, expected generation variability, and offtake counterparty exposure, decomposed into a single decision-grade score. Powered by InfraRisk.
See the full risk decomposition + scenarios for this project.
Forward generation outlook — first-year production estimate and 10-year P50 trajectory, with probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
See the full forecast + scenario decomposition for this project.
Forward revenue, DSCR projection, and financing-close risk — conditioned on commercial operation. First-year DSCR, 10-year cashflow, and counterparty exposure across price and policy scenarios. Powered by InfraSure's asset cashflow stack.
See the full revenue + DSCR projection for this project.
- ISO / RTO
- ERCOT
- Trading Hub
- HB_SOUTH
- Hub Confidence
- HIGH
- Nearest Node (Estimated)
- STAR_SLR_RN
- POI Substation
- Roma Switching Station
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.
Last updated 2026-03-26
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