Data Center Registry

Brookhaven National Laboratory Scientific Data and Computing Center (Building 725)

Upton, Suffolk County, New York

OperatingNo reception on recordRecord updated October 9, 2026

Brookhaven National Laboratory Scientific Data and Computing Center (Building 725) is an operating data center in Upton, New York (Suffolk County), operated by Brookhaven National Laboratory (U.S. Department of Energy). The public record puts it at 9.6 MW planned.

Every line on this page traces to a public source listed at the bottom. Where a figure was looked for and not found, the row says so. A blank is never a zero.

Facility record

Operating

Operator: Brookhaven National Laboratory (U.S. Department of Energy)
Facility type: Data center
Location: Upton, Suffolk County, NY, 11973
Coordinates: 40.8680, -72.8764
Power capacity: 3.6 MW operating; 9.6 MW planned
Land: Not established from a public source
Investment: Not established from a public source
Announced: Not established from a public source
Utility: Not established from a public source
Cooling: Evaporative
Water use: Not established from a public source
Jobs: Not established from a public source
Public subsidy: Not established from a public source
Community reception: No reception on record
Source confidence: Reported by at least one credible outlet or filing

Timeline from the record

Newest first. Record entries come from the filings and reports the registry cites. Coverage entries are headlines from publisher feeds we monitor daily, linked to the outlet; last checked September 14, 2026.

2021
Operating
Construction finished in 2021Q3 and the facility became operational in 2021Q4. IT load migrated from the old Building 515 data center through FY2023. Source: Brookhaven National Laboratory / CHEP 2023

Opposition and litigation at this site

Nothing on record as of October 9, 2026. No lawsuit, organized opposition, or contested hearing over Brookhaven National Laboratory Scientific Data and Computing Center (Building 725) in Upton, Suffolk County, New York appears in the sources this registry tracks. That is an absence in our sources rather than a finding that none exists, and local opposition often predates any coverage a national dataset would pick up.

If you live near this site and something is happening that this page does not show, that is worth telling us. Send us the document and it goes in the record with the source attached. For sites where opposition is already established, see every contested site we track.

Power and water

The lab's CHEP 2023 paper says all support equipment except the cooling towers, high-voltage switchgear and diesel generators sits inside the building shell. It also says the data center can run without BNL campus chilled water. Recorded as evaporative because the heat-rejection path includes cooling towers. No water volume is published.

Notes on the record

The Computing Facility Revitalization project repurposed the former NSLS-I light-source building (Building 725) as a Tier III-class data center for the SDCC. It hosts the US ATLAS Tier-1 site, the US Belle II Tier-1 site, RHIC experiments (STAR, PHENIX, sPHENIX) and the BNL Institutional Cluster. The initial build-out supports 3.6 MW of IT load (recorded as operational) with 3.5 MW of diesel backup. The full build-out supports 9.6 MW of IT load (recorded as planned) with 14 MW of diesel backup and 478 racks. IT floor space is about 1,600 m2 (17,000 sq ft), and the design PUE target is 1.2 (a target, not a measured value). The paper's most recent data is from 2023. Coordinates are the OSM footprint centroid of building '725 - CSI'.

What the record does not establish, and the document that would

In every fight on our tracker the decisive fact came out of a public records request. These are the requests for this site.

Tax abatements or other public subsidy
Permanent jobs promised
Land area
How the community has received it
Which utility serves it

Which document closes each gap

Tax abatements or other public subsidy: The abatement, PILOT, or development agreement approved by the county, city, or development authority, and the state's data center sales tax exemption certificate if one was issued.
Permanent jobs promised: The economic development application or incentive agreement, which usually states a job commitment and a clawback.
Land area: The rezoning application, the plat, or the deed recorded with the county.
How the community has received it: Planning commission and governing body minutes, public comment records, and any petition or lawsuit filed in the county.
Which utility serves it: The electric service agreement or the utility's filing with the state public utility commission.

Have one of these documents? Send it to us and we will add it to the record with attribution.

Other sites within 30 miles

Distances are between recorded coordinates, many of which are a city or county centroid, so treat them as approximate. Cumulative load on one utility and one aquifer is the question a planning commission rarely asks.

Brookhaven Digital Infrastructure Facility (WF Industrial / Wildflower, Yaphank) · Yaphank · WF Industrial (Wildflower)4 mi · Proposed · 176.6 MW · Contested
365 Data Centers Long Island (Commack) · Commack · 365 Data Centers22 mi · Operating · 6 MW
CogNovum Data Center (80 Merritt Boulevard) · Trumbull · CogNovum29 mi · Operating · 6.75 MW · Contested

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Questions people ask about this site

Is there opposition to the Brookhaven National Laboratory Scientific Data and Computing Center (Building 725) data center in Upton?

Has anyone filed a lawsuit over the Brookhaven National Laboratory Scientific Data and Computing Center (Building 725) data center?

No lawsuit over Brookhaven National Laboratory Scientific Data and Computing Center (Building 725) appears in the record we track as of October 9, 2026. Residents most often reach a lawyer over water supply, well drawdown, noise from cooling plant, property value, or a rezoning approved without the notice the ordinance required. If any of that is happening near this site, it is worth a review whether or not a case has been filed yet.

How much water does Brookhaven National Laboratory Scientific Data and Computing Center (Building 725) use?

No water withdrawal figure for Brookhaven National Laboratory Scientific Data and Computing Center (Building 725) is on record here. Cooling is recorded as evaporative, which is the strongest available clue: closed loop and air cooled plant draw far less than evaporative cooling. We leave the number blank rather than estimate one.

Who operates Brookhaven National Laboratory Scientific Data and Computing Center (Building 725), and how big is it?

Brookhaven National Laboratory (U.S. Department of Energy) is the operator on record. Capacity on record is 9.6 MW.

How to cite this page

SueDataCenters.org Data Center Registry, "Brookhaven National Laboratory Scientific Data and Computing Center (Building 725)," updated October 9, 2026, https://suedatacenters.org/data-centers/bnl-sdcc-b725-upton-ny.

Facility data from Compute Atlas (E. Kubiak), version 1.34.1 (October 4, 2026), licensed CC BY 4.0, record https://www.compute-atlas.com/facilities/bnl-sdcc-b725-upton-ny, retrieved October 11, 2026.

Corrections with a public source are welcome at the Compute Atlas record or through our contact page. The whole registry is available as CSV and JSON under CC BY 4.0.

Sources for this record

As compiled and cited by Compute Atlas, with our own reporting appended. Archived links are used where the original has moved.

1.Finalizing Transition to the New Data Center at BNL (Latif, Misawa, Zaytsev; CHEP 2023) · Brookhaven National Laboratory / CHEP 2023 · retrieved October 9, 2026
2.OpenStreetMap way 471294208: '725 - CSI' building, Brookhaven National Laboratory · OpenStreetMap · retrieved October 9, 2026

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