Grandfalls Solar
175.6 MW hybrid in Upton, TX · In queue since May 2016 · Proposed COD July 2027
175.6 MW
Capacity
1
Components
Solar
10y 2m
In Queue
IA Executed
IA Phase
Signed Jan 2025
Queue → IA
8y 8m
IA → COD
2y 6m
Total Duration
8y 8m
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: 2027-07-01
The Grandfalls Solar project is a proposed 178 MW solar generation facility in Upton County, Texas. The project, developed by Nextera, is located within the ERCOT region and interconnected to the ERCOT queue as entry ERCOT-19INR0002 on May 24, 2016.
The proposed commercial operation date for Grandfalls Solar is July 1, 2027. The project's interconnection status is currently in the Facility Study phase. The point of interconnection is the tap 345kV 11028 Odessa - 76000 N McCamey. The project has appeared 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
Upton
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Nextera
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
842 King Mountain Station 345kV
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_WEST
- Hub Confidence
- MEDIUM
- Nearest Node (Estimated)
- OECCS_1
- POI Substation
- Odessa Substation
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.
Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
