Duffy Solar
502.46 MW hybrid in Matagorda, TX · In queue since September 2020 · Proposed COD December 2027
502.46 MW
Capacity
1
Components
Solar
5y 10m
In Queue
IA Executed
IA Phase
Signed Apr 2023
Queue → IA
2y 7m
IA → COD
4y 8m
Total Duration
2y 7m
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: 2027-12-31
- 2023-06·Horus Energy→Linea Energysource
ERCOT Standard Generation Interconnection Agreement executed between CenterPoint Energy Houston Electric and VDA Solar Texas 1 LLC
sourceLinea Energy secures equity financing for co-located 235 MW Duffy BESS, teeing up solar project
sourceLinea Energy and Google sign 15-year, 500 MW PPA for Duffy Solar Project
sourceDuffy Solar is a proposed 502.46 MW solar generation project located in Matagorda County, Texas. The developer is VDA Solar Texas 1 LLC. The project is interconnected within the Electric Reliability Council of Texas (ERCOT) queue as entry ERCOT-23INR0057, with a queue entry date of September 11, 2020. The proposed commercial operation date is December 31, 2027.
The project's Interconnection Agreement (IA) was executed on April 12, 2023. The point of interconnection is Tap 345kV WAP to STP CKT39 (PTI# 5915-44000 CKT 39). The Duffy Solar project has been mentioned in recent news coverage.
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
Matagorda
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
VDA Solar Texas 1 LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 345kV WAP to STP CKT39 (PTI# 5915-44000 CKT 39)
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.
