Grid connection · Suffolk County, New York, United States
Holtsville Brookhaven Battery Storage grid connection (NYISO 1255)
Holtsville Brookhaven Battery Storage grid connection (NYISO 1255) is a planned grid connection in Suffolk County, New York, United States, with 79.9 MW of capacity, held by Holtsville Brookhaven Battery Storage LLC.
Facts
Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Location | Suffolk County (connects at Line 69-849 from West Yaphank to North Bellport) | NYISO interconnection queue · Free reuse · checked 24 Oct 2026 |
| Status | Planned (accepted cost allocation/interconnection agreement in progress) | NYISO interconnection queue · Free reuse · checked 24 Oct 2026 |
| Holder | Holtsville Brookhaven Battery Storage LLC | NYISO interconnection queue · Free reuse · checked 24 Oct 2026 |
| Capacity | 79.9 MW | NYISO interconnection queue · Free reuse · checked 24 Oct 2026 |
| Technology | Storage | NYISO interconnection queue · Free reuse · checked 24 Oct 2026 |
| Grid operator | New York Independent System Operator, Inc. | NYISO interconnection queue · Free reuse · checked 24 Oct 2026 |
| Queue date | 22 Sept 2021 | NYISO interconnection queue · Free reuse · checked 24 Oct 2026 |
| Connection date | 1 Oct 2027 (proposed) | NYISO interconnection queue · Free reuse · checked 24 Oct 2026 |
Research on this grid connection and its holder.Who holds it up to the parent company, the project behind it and its connection date, and an introduction to the holder.
Request researchLatest events
Dated events about this grid connection from official notices and registers, newest first. All recent changes.
- Connection agreement (register status “Accepted Cost Allocation/IA in Progress”, agreement tendered)
- Entered the connection queue
How it compares
Holtsville Brookhaven Battery Storage grid connection (NYISO 1255) is the 148th-largest of 212 grid connections in New York and the 3,015th-largest of 4,021 in the United States by capacity; its 79.9 MW is <0.1% of the 923,876 MW we hold for the United States. Ranks and totals cover the grid connections in our data that report their capacity, not every one in existence.
| Within | Rank | Total | Share |
|---|---|---|---|
| New York | 148th of 212 | 33,437 MW | 0.24% |
| United States | 3,015th of 4,021 | 923,876 MW | <0.1% |
| All grid connections in our data | 3,572nd of 7,928 | 1,372,494 MW | <0.1% |
Timeline
Dated facts about this grid connection from its sources, oldest first.
- Due to connect
Holder, grid operator and place
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Data on this page
- California ISO. CAISO queue report, CAISO Privacy and Terms of Use.
- SP Electricity North West, via Northern Powergrid Open Data. SP Electricity North West open data portal, CC BY 4.0.
- ERCOT GIS report. ERCOT GIS report, ERCOT Terms of Use.
- Supported by National Energy SO Open Data. NESO TEC Register, NESO Open Data Licence v1.0.
- Supported by Northern Powergrid Open Data. Northern Powergrid open data portal, Northern Powergrid Open Data Licence v1.0.
- NYISO interconnection queue. NYISO interconnection queue, Free reuse.
- PJM New Services Queue. PJM New Services Queue, Free reuse.
- SP Energy Networks, via Northern Powergrid Open Data. SP Energy Networks open data portal, CC BY 4.0.
- SSEN Distribution. SSEN Distribution data portal, CC BY 4.0.