Half Moon Solar
512.5 MW generation in Starr, TX · In queue since January 2025 · Proposed COD July 2029
512.5 MW
Capacity
1
Components
Solar
1y 6m
In Queue
IA Executed
IA Phase
Signed Sep 2025
Queue → IA
8 months
IA → COD
3y 10m
Total Duration
8 months
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: 12–24 months
Proposed COD: 2029-07-01
Half Moon Solar is a proposed 512.5 MW solar generation project located in Starr County, Texas. The project, being developed by NextEra Energy Interconnection Holdings, LLC, is in the ERCOT interconnection queue as entry ERCOT-28INR0127, with a queue entry date of January 13, 2025. The proposed commercial operation date is July 1, 2029, and the interconnection agreement date is September 8, 2025. The point of interconnection is #80231 Pronto 345kV.
The Half Moon Solar project has been featured 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
Starr
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
NextEra Energy Interconnection Holdings, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
#80231 Pronto 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_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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