Moccasin Solar
603.59 MW hybrid in Stonewall, TX · In queue since September 2023 · Proposed COD July 2027
603.59 MW
Capacity
1
Components
Solar
2y 10m
In Queue
IA Executed
IA Phase
Signed Sep 2024
Queue → IA
1 year
IA → COD
2y 10m
Total Duration
1 year
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: 2027-07-06
- 2025-10·Swenson Solar LLC (original developer)→ENGIEsource
The Moccasin Solar project is a proposed 806.8 MW solar generation facility in Stonewall County, Texas. The project, being developed by Swenson Solar LLC, is located within the ERCOT region and interconnected to the 345 kV line from Kirchhoff to Clear Crossing.
The project entered the ERCOT interconnection queue as entry ERCOT-26INR0269 on September 7, 2023, with a proposed commercial operation date of July 6, 2027. The Interconnection Agreement (IA) for the project was executed on September 4, 2024. The project is currently listed as active in the interconnection queue.
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
Stonewall
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Swenson Solar LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tapping the 345 kV Line from Kirchhoff (Bus# 60707) to Clear Crossing (Bus# 60515)
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_NORTH
- Hub Confidence
- LOW
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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Summary analysis with parallel narrative sections and visualizations.
Top 10 solar states
Data tables and metrics from the InfraSure database.
Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
