Datacenter Sites in Nassau County, New York
Nassau County has 130 scored datacenter candidate sites averaging 57.5/100 DC Readiness, with a catalogued aggregate of 5,822 MW. FEMA rates local natural-hazard risk as "Relatively High". The county has a datacenter tax incentive on record.
At a glance
Nassau County, New York has 130 scored datacenter candidate sites averaging 57.5/100 DC Readiness, roughly in line with the New York average of 54.0. It ranks 4th of 61 New York counties by number of sites and 6th by average score. The top-scoring site is DUFFY AVENUE CONVERTER STATION at 70.2/100.
Site-selection context for Nassau County
Incentive detail: Excelsior Jobs Program tax credits; IDA property tax abatements (PILOT); Empire State Digital Gaming.
How does Nassau County compare with other counties in New York?
By number of scored sites, Nassau County ranks 4th of the 61 New York counties with a county page, holding 4.4% of the state's 2,980 sites. Its average DC Readiness of 57.5/100 ranks 6th in the state and is roughly in line with the national average of 53.0. Nationally it has the 219th-largest site inventory of 2,964 counties with five or more sites. One site scores 70 or higher and 92 score 55 or higher.
What types of datacenter sites are in Nassau County?
Substation-Adjacent sites are the most common (53, 41% of the county's inventory), followed by industrial (41) and greenfield (31). Site type reflects how the parcel was identified — next to a substation, on a former mine or brownfield, on industrial or federal excess land — and is scored on the same 14 factors either way.
What are power cost, hazard, water and fiber conditions in Nassau County?
Industrial electricity averages 27.43¢/kWh and commercial 15.40¢/kWh. FEMA's National Risk Index rates the county "Relatively High" (35). WRI water stress is low. 12 fiber providers report service in the county. The climate runs 700 cooling degree days a year with a mean temperature of 46°F. Land is valued around $62,463 an acre.
By site type
Top datacenter sites in Nassau County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| DUFFY AVENUE CONVERTER STATION | Substation-Adjacent | 500 kV | 1,000 MW | 4.3 yrs | 70.2 |
| SHORE RD | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 68.8 |
| EAST GARDEN CITY | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 67.6 |
| NEWBRIDGE ROAD | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 67.3 |
| TAP141012 | Substation-Adjacent | 138 kV | 100 MW | 4.3 yrs | 63.3 |
| ELWOOD | Substation-Adjacent | 138 kV | 100 MW | 4.3 yrs | 62.5 |
| TAP136403 | Substation-Adjacent | 138 kV | 100 MW | 4.3 yrs | 62.4 |
| TAP136404 | Substation-Adjacent | 138 kV | 100 MW | 4.3 yrs | 62.3 |
| UNKNOWN129228 | Substation-Adjacent | 138 kV | 100 MW | 4.3 yrs | 62.3 |
| OAKWOOD | Substation-Adjacent | 138 kV | 100 MW | 4.3 yrs | 62.2 |
| RULAND ROAD | Substation-Adjacent | 138 kV | 100 MW | 4.3 yrs | 62.1 |
| EC Near Plant No 2 Freeport | Greenfield | — | — | 4.3 yrs | 62.0 |
| NORTHPORT | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 61.5 |
| EC Near Plant No 2 Freeport | Greenfield | — | — | 4.3 yrs | 61.1 |
| EC Near E F Barrett | Greenfield | — | — | 4.3 yrs | 61.1 |
| EC Near Glenwood | Greenfield | — | — | 4.3 yrs | 61.1 |
| PINES | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 61.1 |
| BRENTWOOD | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 61.0 |
| OZ Nassau | Greenfield | — | — | 4.3 yrs | 61.0 |
| EC Near Glenwood | Greenfield | — | — | 4.3 yrs | 60.6 |
| EC Near Charles P Keller | Greenfield | — | — | 4.3 yrs | 60.5 |
| UNKNOWN124147 | Substation-Adjacent | 138 kV | 100 MW | 4.3 yrs | 60.4 |
| EC Near Plant No 2 Freeport | Greenfield | — | — | 4.3 yrs | 60.4 |
| EC Near SUNY Old Westbury College | Greenfield | — | — | 4.3 yrs | 60.3 |
| WATSON | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 60.2 |
Every scored site in Nassau County
All 130 sites, best first.
- DUFFY AVENUE CONVERTER STATION · 70.2
- SHORE RD · 68.8
- EAST GARDEN CITY · 67.6
- NEWBRIDGE ROAD · 67.3
- Substation-Adjacent site · b9dd33fd · 63.3
- ELWOOD · 62.5
- Substation-Adjacent site · e4bca861 · 62.4
- Substation-Adjacent site · 7f218d75 · 62.3
- Substation-Adjacent site · bc4e6dcc · 62.3
- OAKWOOD · 62.2
- RULAND ROAD · 62.1
- EC Near Plant No 2 Freeport · 210afeac · 62.0
- NORTHPORT · 61.5
- EC Near Plant No 2 Freeport · 3ae53c41 · 61.1
- EC Near E F Barrett · 30c9422f · 61.1
- PINES · 61.1
- EC Near Glenwood · 1f0e54be · 61.1
- OZ Nassau · 61.0
- BRENTWOOD · 61.0
- EC Near Glenwood · afceed9e · 60.6
- EC Near Charles P Keller · 60.5
- Substation-Adjacent site · 030dbd22 · 60.4
- EC Near Plant No 2 Freeport · c1c8a223 · 60.4
- EC Near SUNY Old Westbury College · 782df71e · 60.3
- WATSON · 60.2
- DEER PARK · 60.1
- DEPOSIT · 60.1
- GREAT RIVER · 60.1
- BRIGHTWATERS · 60.0
- INDIAN HEAD · 60.0
- BABYLON · 59.8
- WOLF HILL · 59.8
- EC Near SUNY Old Westbury College · b143e4e7 · 59.8
- SOUTH FARMINGDALE · 59.8
- Substation-Adjacent site · af4e2b81 · 59.7
- PINELAWN · 59.7
- STATE SCHOOL · 59.7
- EC Near Glenwood · 84a8b78f · 59.7
- EC Near SUNY Old Westbury College · 2b0ff581 · 59.7
- Substation-Adjacent site · 9c947c3e · 59.6
- EC Near Plant No 2 Freeport · 93baa450 · 59.6
- EC Near Glenwood · 46132076 · 59.5
- Substation-Adjacent site · 05fb339d · 59.4
- EC Near Glenwood · 33587cd9 · 59.3
- WEST HEMPSTEAD · 59.3
- WHITESIDE · 59.1
- Substation-Adjacent site · a7edb067 · 59.1
- NEW SOUTH ROAD · 59.1
- Substation-Adjacent site · b954735d · 59.1
- EC Near Glenwood · fd416777 · 59.0
- MALVERNE · 58.3
- Substation-Adjacent site · 350455fe · 58.3
- BETHPAGE · 58.2
- VALLEY STREAM · 58.2
- Substation-Adjacent site · 2e8b5101 · 58.2
- CORONA AVE · 58.2
- LEVITTOWN · 58.2
- BELLMORE · 58.1
- GLEN HEAD · 58.0
- SYOSSET · 58.0
- Substation-Adjacent site · 76eefd8c · 58.0
- WOODBURY · 58.0
- MASSAPEQUA · 58.0
- GREAT NECK · 58.0
- PORT WASHINGTON · 57.9
- ORCHARD · 57.9
- BAR BEACH · 57.9
- Substation-Adjacent site · a33ed512 · 57.8
- Plant No 2 Freeport · 57.7
- SUNY Old Westbury College · 57.3
- EC Near Glenwood · a2900f17 · 57.2
- EC Near SUNY Old Westbury College · 374cd1d0 · 57.1
- Mount Sinai South Nassau Hospital · 57.1
- OYSTER BAY · 56.9
- EC Near SUNY Old Westbury College · 90fc0112 · 56.5
- EC Near E F Barrett · e4221b05 · 56.3
- Greenfield (UNKNOWN129500 - TAP141013) · 56.2
- EC Near Glenwood · 3eaad737 · 55.7
- EC Near Glenwood · 0b827b97 · 55.7
- 989 Prospect Avenue · 55.5
- 816 Prospect Avenue · 55.4
- 820 Prospect Avenue · 55.4
- 839 Prospect Avenue · 55.4
- Former Grand Street School Site · 55.4
- EC Near Glenwood · f6901cbf · 55.3
- Circulo Site · 55.3
- Brooklyn Ave, West Hempstead · 55.3
- 508 Union Avenue · 55.3
- 514 Union Avenue · 55.3
- 512 Union Avenue · 55.3
- NEW YORK TRACON · 90ee87fd · 55.1
- Coes Neck, Baldwin · 55.1
- Bishop Property - Property B · 54.2
- Vacant lot adjacent to 273 Babylon Turnpike · 54.2
- Roosevelt, Property C · 54.2
- Former Elmont Welding Shop · 54.2
- Roosevelt, Property A · 54.2
- 701 and 715 Prospect Avenue · 54.1
- 821 and 825 Prospect Avenue · 54.1
- Mill Rd, Hempstead · 54.1
- EC Near Plant No 2 Freeport · 716debe5 · 54.1
- 721 and 729 Prospect Avenue · 54.1
- 79 Hazel Street · 54.0
- Glen Cove Creek Area · 54.0
- T.M. Ber & Associates, Inc. · 54.0
- Tweezerman · 54.0
- Northern Type Print · 53.9
- Long Island Paint · 53.9
- North Shore Fuel · 53.9
- Tank Specialist · 53.9
- A-1 Carting · 53.9
- Konica · 53.9
- Lopez/Rant · 53.9
- Dogleg · 53.9
- 34 Woodbridge Lane · 53.9
- Mill Pond/Pratt Park · 53.9
- Gladsky's Property Formerly Gladsky's Marine · 53.8
- Bona Fide Cement · 53.8
- 50 Dickson St Former North Shore Sportswear · 53.8
- Doxey Site · 53.8
- Angler's Club · 53.8
- Marinor Street · 53.8
- 49 Herbhill Road · 53.8
- EAST MEADOW RCL · 3e34a297 · 53.7
- EC Near Plant No 2 Freeport · 0c13771d · 53.0
- EC Near Plant No 2 Freeport · c90c911b · 52.9
- EC Near Plant No 1 Freeport · 52.2
- EC Near Plant No 2 Freeport · 248352ef · 52.2
- EC Near E F Barrett · 6100280f · 51.7
- EC Near Glenwood · faff5dd2 · 50.9
Nassau County datacenter FAQ
How many datacenter sites are in Nassau County?
130 scored datacenter candidate sites, averaging 57.5/100 DC Readiness. That is the 4th-most of 61 New York counties with five or more sites.
What is the highest-scoring datacenter site in Nassau County?
DUFFY AVENUE CONVERTER STATION scores 70.2/100 DC Readiness, the highest of the 130 scored sites in Nassau County (a substation-adjacent site).
Does Nassau County offer datacenter tax incentives?
Excelsior Jobs Program tax credits; IDA property tax abatements (PILOT); Empire State Digital Gaming.
What is the natural-hazard risk in Nassau County?
FEMA's National Risk Index rates Nassau County as "Relatively High" (score 35).
What are industrial electricity rates in Nassau County?
Average industrial electricity is 27.43¢/kWh and commercial is 15.40¢/kWh in Nassau County.
More in New York
- All datacenter sites in New York· 2,980 sites
- Operating datacenters in New York
- Electric substations in New York
- Niagara County· 237 sites · avg 53.5
- Erie County· 192 sites · avg 56.2
- Monroe County· 176 sites · avg 55.8
- Suffolk County· 101 sites · avg 56.4
- St. Lawrence County· 94 sites · avg 53.5
- Onondaga County· 85 sites · avg 57.7
- Substation-Adjacent sites in New York
- Industrial sites in New York
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published November 12, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Datacenter candidate sites in Nassau County, New York”, https://gridcensus.com/datacenter-sites/new-york/nassau-county (data as of November 12, 2026).
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
Every site and score for Nassau County, New York is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.