West Millersport 345 kV
375 MW storage in Fairfield, OH · In queue since April 2026 · Proposed COD September 2030
375 MW
Capacity
0
Components
6 months
In Queue
—
IA Status
COD target: 2030
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
4y 5m
Study Phase
C01
Interconnection request submitted to ISO/RTO
PJM processes interconnection requests through multi-phase System Impact Studies (SIS).
Typical: ~48 months (historically longest)
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Proposed COD: 2030-09-30
West Millersport 345 kV is a proposed 375 MW battery energy storage development project in Fairfield County, Ohio. The project is being developed by ENGIE IR Holdings LLC and is designed as a standalone storage facility. It would connect to the grid at the West Millersport 345 kV point of interconnection, within the service territory of the utility AEP.
The project is listed in the PJM Interconnection queue under queue ID PJM-C01-1780 and is requesting Generation Interconnection service. It entered the queue on April 25, 2026, and is currently active in PJM's C01 study phase. The proposed commercial operation date is September 30, 2030. The available data does not report the status of an interconnection agreement.
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
OH
County
Fairfield
Grid Region
PJM Interconnection
Market
ISO/RTO Member
Developer
ENGIE IR Holdings LLC
Utility
AEP
Entity
PJM
Service Type
Generation Interconnection
Point of Interconnection
West Millersport 345 kV
Data Source
live-pjm_cycle
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
- PJM
- Trading Hub
- AEP-DAYTON HUB
- Hub Confidence
- HIGH
- POI Substation
- West Millersport 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.
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Ask about West Millersport 345 kVForward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
