Interconnection queueNew YorkSuffolk County › Storage

Storage Projects in Suffolk County, New York

Snapshot of 2026-08-06 · 92 projects

92 storage projects are in the interconnection queue in Suffolk County, New York, totalling 7,789 MW across the 92 that publish a capacity.

Grouped from the ISOs' own fuel codes — see the mapping. Codes we could not match to a published definition are left unclassified rather than assigned here.

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By ISO

ISOProjectsCapacity
NYISO927,789 MW

By fuel code, as published

FuelProjectsCapacity
ES927,789 MW

By status, as published

StatusProjects
Withdrawn75
Cluster Study10
Active7

Largest projects with published capacity

The 12 highest-capacity rows in this page's exact scope, ordered by the capacity the ISO published. Projects without a published capacity are not ranked here and remain included in the totals above.

ProjectISOMWStatusQueue dateProposed operation
Port Jefferson Energy Storage
ID 1546
NYISO400Withdrawn2023-04-21not published
Holbrook II Energy Storage
ID 1548
NYISO400Withdrawn2023-04-21not published
East Setauket Energy Storage II
ID 1505
NYISO300Withdrawn2023-01-19not published
Wildwood-Riverhead Energy Storage
ID 0973
NYISO294Withdrawn2020-01-13not published
East Setauket Storage II
ID C24-183
NYISO248Cluster Study2024-09-1712-2029
Riptide Storage
ID 1576
NYISO200Withdrawn2023-07-06not published
Flynn Energy Storage
ID 1402
NYISO160Withdrawn2022-07-01not published
North Street Energy Storage
ID 0746
NYISO150Withdrawn2018-07-30not published
Holbrook Energy Center
ID 1049
NYISO150Withdrawn2020-07-14not published
Holtsville Energy Center
ID 1050
NYISO150Withdrawn2020-07-14not published
KCE NY 37
ID C24-167
NYISO150Cluster Study2024-09-1612-2029
Ramadi Utility
ID 1616
NYISO140Withdrawn2023-09-27not published

Where each number came from

Read this before quoting a figure. We re-read every source every week, but a weekly read of an unchanged file is not weekly data. These have not moved in a while: NYISO last changed 2026-07-16 (4 identical reads since). Those rows are exactly as current as the ISO's own published file, and no more.
ISOWe last readSource last changedSource
NYISO2026-08-062026-07-16 (unchanged across 4 weekly reads)source file

Compiled from each ISO's own published interconnection queue report. Queue position is not a permit, a contract, or a guarantee that a project will be built; most projects in every queue are eventually withdrawn. Figures are reproduced as published, are provided for informational purposes only, and carry no warranty of accuracy or completeness. Always verify against the ISO's own report before relying on any figure.

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