Mandolin Solar III SLF
250 MW generation in Starr, TX · In queue since September 2026 · Proposed COD June 2029
250 MW
Capacity
0
Components
1 month
In Queue
—
IA Status
COD target: 2029
One connected view of the asset's ownership, operating or development evidence, grid context, commercial relationships, history, and forward outlook.
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Total Duration
2y 9m
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 not yet executed
Typical: 30–60 days (negotiation)
Proposed COD: 2029-06-15
Mandolin Solar III SLF is a proposed 250 MW solar photovoltaic generation project located in Starr County, Texas. The development project is being advanced by Mandolin Energy Center I, LLC and is planned to connect to the grid operated by the Electric Reliability Council of Texas (ERCOT). Its proposed point of interconnection is a tap on the 345 kV transmission line between the Del Sol (80355) and Rapido (80227) substations.
The project is listed in the ERCOT interconnection queue under the identifier ERCOT-29INR0224, with a queue entry date of September 4, 2026. Its status in the queue is active, and its proposed commercial operation date is June 15, 2029. The available data does not indicate the status of an interconnection agreement for the project.
Generated from interconnection queue and public data sources
Realization risk before commercial operation — cluster-study clearance, IA timing, counterparty mix, and withdrawal probability vs cohort. The diligence view that determines whether this project is worth pursuing. 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
Mandolin Energy Center I, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 345kV 80355 Del Sol - 80227 Rapido
Data Source
Live · ERCOT
Composite operating-phase risk view — what this asset's risk profile would look like once it reaches commercial operation. 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 — what this project would produce assuming it reaches commercial operation. Probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios, conditioned on the proposed COD. 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. The bankability view that determines whether the deal clears its covenants once online. 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
- POI Substation
- Mesa del Sol 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.
No Ask reports yet for this entity.
Ask about Mandolin Solar III SLFForward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
