East Setauket Energy Storage
125 MW storage in Suffolk, NY · In queue since January 2020 · Proposed COD April 2027
125 MW
Capacity
1
Components
Battery
6y 6m
In Queue
Facility Study
IA Phase
COD target: 2027
Total Duration
7y 3m
Interconnection request submitted to ISO/RTO
NYISO transitioned to a Transitional Cluster Study (TCS) format in 2024.
Typical: >42 months (historical); ~24 months target
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Proposed COD: 2027-04-01
Entered NYISO queue in Facility Study phase
The East Setauket Energy Storage project is a proposed 125 MW battery storage project located in Suffolk County, New York. The project, being developed by Savion, LLC, is interconnected to the Long Island Power Authority (LIPA) grid. It entered the New York Independent System Operator (NYISO) interconnection queue as queue ID NYISO-971 on January 10, 2020, with a proposed commercial operation date of April 1, 2027.
The project consists of 125 MW of battery storage capacity. The East Setauket Energy Storage project is currently listed as active in the NYISO interconnection queue and has been the subject of recent news coverage.
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
NY
County
Suffolk
Grid Region
NYISO (New York)
Market
ISO/RTO Member
Developer
East Setauket Energy Storage, LLC
Utility
LIPA
Entity
NYISO
Service Type
—
Point of Interconnection
Holbrook - Miller Place 138kV
Data Source
LBNL
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
- NYISO
- Trading Hub
- ZONE K
- Hub Confidence
- MEDIUM
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 East Setauket Energy StorageForward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
