Sammis 345 kV
200 MW storage in Jefferson, OH · In queue since April 2026 · Proposed COD January 2030
200 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
3y 9m
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: 2030-01-01
Sammis 345 kV (queue ID PJM-C01-2040) is a proposed battery energy storage development project located in Jefferson County, Ohio. Developed by Sammis Power LLC, the project has a total capacity of 200 MW and is classified as a storage project. It is planned to connect to the transmission system at the Sammis 345 kV point of interconnection, within the service territory of the utility ATSI.
The project is in the interconnection queue of PJM Interconnection, which it entered on April 27, 2026, and its status is listed as active. It has requested Generation Interconnection service and is being evaluated in the C01 study phase. The proposed commercial operation date is January 1, 2030.
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
Jefferson
Grid Region
PJM Interconnection
Market
ISO/RTO Member
Developer
Sammis Power LLC
Utility
ATSI
Entity
PJM
Service Type
Generation Interconnection
Point of Interconnection
Sammis 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
- Nearest Node (Estimated)
- SAMMISFE345 KV CR5
- POI Substation
- Sammis 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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