SIGNALDATAInsights for the People. Preview
Data centers · St. Lawrence County, New York

St. Lawrence County

5 projects on record

← Statewide map
Albany CountyAllegany CountyBronx CountyBroome CountyCattaraugus CountyCayuga CountyChautauqua CountyChemung CountyChenango CountyClinton CountyColumbia CountyCortland CountyDelaware CountyDutchess CountyErie CountyEssex CountyFranklin CountyFulton CountyGenesee CountyGreene CountyHamilton CountyHerkimer CountyJefferson CountyKings CountyLewis CountyLivingston CountyMadison CountyMonroe CountyMontgomery CountyNassau CountyNew York CountyNiagara CountyOneida CountyOnondaga CountyOntario CountyOrange CountyOrleans CountyOswego CountyOtsego CountyPutnam CountyQueens CountyRensselaer CountyRichmond CountyRockland CountySaratoga CountySchenectady CountySchoharie CountySchuyler CountySeneca CountySt. Lawrence CountySteuben CountySuffolk CountySullivan CountyTioga CountyTompkins CountyUlster CountyWarren CountyWashington CountyWayne CountyWestchester CountyWyoming CountyYates CountySt. Lawrence Infrastructure data center · Proposed · 2,795 MWArsenal Data Site · Proposed · 933 MWNYDIG / North Country Colocation Services Massena campus · Proposed · 635 MWNew York State Artificial Intelligence Data Center · Proposed · 300 MWPontoon Bridge Road Data Center · Proposed · 250 MW
Projects in St. Lawrence County
St. Lawrence Infrastructure data centerSt. Lawrence Infrastructure, LLC2,795ProposedSept. 30, 202650 MW+
Arsenal Data SiteArconic Corporation933ProposedSept. 30, 202650 MW+
NYDIG / North Country Colocation Services Massena campusNorth Country Colocation Services (NCCS); NYDIG635ProposedSept. 16, 202650 MW+
New York State Artificial Intelligence Data CenterZeroC Data Centers, LLC300ProposedSept. 30, 202650 MW+
Pontoon Bridge Road Data CenterAmerican Data Center Partners LLC250ProposedSept. 30, 202650 MW+

Updates, newest first

  1. Sept. 30, 2026 NYDIG / North Country Colocation Services Massena campus · NYISO's queue lists the North Country Data Center load (435 MW, under construction) and a further 200 MW Massena Development request. (New York Independent System Operator (NYISO), Sept. 30, 2026)
  2. Sept. 16, 2026 NYDIG / North Country Colocation Services Massena campus · The Massena Town Board voted 3-2 against a six-month data center moratorium; the developer said the project needs no further discretionary DEC permits. (WCAX / WWNY, Sept. 17, 2026)
  3. June 26, 2026 NYDIG / North Country Colocation Services Massena campus · The Massena Town Planning Board took up a revised presubmission that dropped a building, cut the footprint by about 400,000 sq ft and reduced generators to 124. (DatacenterDynamics, July 7, 2026)
  4. May 18, 2026 NYDIG / North Country Colocation Services Massena campus · The St. Lawrence County Planning Board reviewed a three-building plan of about 1.45 million sq ft with 316 backup diesel generators and added conditions. (Watertown Daily Times / NNY360, May 18, 2026)
  5. Oct. 9, 2025 Pontoon Bridge Road Data Center · American Data Center Partners filed a 250 MW data center load request with NYISO. (New York Independent System Operator (NYISO), Sept. 30, 2026)
  6. Sept. 2, 2025 St. Lawrence Infrastructure data center · St. Lawrence Infrastructure filed two AI data center load requests with NYISO, for 860 MW and 1,935 MW. (New York Independent System Operator (NYISO), Sept. 30, 2026)
  7. March 14, 2025 New York State Artificial Intelligence Data Center · ZeroC filed a 300 MW AI data center load request on NYPA's Haverstock-Adirondack line; an earlier 300 MW request at the Dennison substation is marked withdrawn. (New York Independent System Operator (NYISO), Sept. 30, 2026)
  8. March 7, 2025 Arsenal Data Site · Arconic filed three AI data center load requests with NYISO (233, 233 and 467 MW), all now at the system-impact-study-approved stage. (New York Independent System Operator (NYISO), Sept. 30, 2026)

Statewide

Executive Order 62 (July 14, 2026) tells DEC to hold all incomplete discretionary permit applications for building or expanding data centers that use, or can use, 50 MW or more until the Department of Public Service finishes a statewide environmental impact statement; local permits are not covered, and the order sets no end date. (Office of the Governor of New York, July 14, 2026; Hodgson Russ LLP, July 16, 2026) Responsible Data Center Development Act (S10642/A11560): passed the Senate 43-17 on June 4, 2026 and the Assembly; it would pause state permits for data centers of 20 MW or more for a year, require separate utility rate classes and renewable targets; not yet signed or vetoed as of Oct. 18, 2026. (New York State Senate, June 4, 2026; WBNG, June 5, 2026) PSC Case 26-E-0045 (Energize NY Development) is the large-load interconnection proceeding, opened Feb. 12, 2026 under a beneficiary-pays approach; on Sept. 17, 2026 the PSC issued a draft scope for the data center environmental impact statement, with comments due Oct. 20, 2026. (New York State Public Service Commission (copy hosted by RTO Insider), Feb. 12, 2026; New York State Department of Public Service, Sept. 17, 2026; Office of the Governor of New York, July 14, 2026) Tax breaks: a 2000 state law gives internet data centers state and local sales tax breaks, and local IDAs grant sales, property and mortgage-tax abatements; the governor says she will seek a ban on these breaks for data centers of 50 MW or more in the next budget (no bill number yet). (Investigative Post, July 21, 2026; Spectrum News, Sept. 18, 2026) NYISO load queue: the state reports nearly 12 GW of data center load requests as of May 2026; the Sept. 30, 2026 queue lists data center requests across St. Lawrence, Niagara, Dutchess, Suffolk and other counties. (Office of the Governor of New York, July 14, 2026; New York Independent System Operator (NYISO), Sept. 30, 2026) New York data centers →