Old Main

Old Main is a mapped data center in St. Lawrence County, New York, associated with Clarkson University. Its reported footprint is 24,649 square feet. The site draws power from Niagara Mohawk Power Corp. inside the NYIS balancing authority. Operator and ownership details above the site are not disclosed in available records.

• Natural Gas43.0%
• Nuclear26.7%
• Hydro21.6%
• Other5.9%
• Wind2.7%

Real-time generation mix for the NYISO grid this site draws from, as of Jun 16, 2026, 4:25 PM. ISO-wide, not this facility's own metering. Source: gridstatus.

• Video: Broken Arrow City Council to Consider Six-Month Moratorium on Data Center Proposals

  fox23.com· Jun 15, 2026
• Broken Arrow City Council to consider 6 month moratorium on data center proposals

  fox23.com· Jun 15, 2026
• Researchers recycle old phones and cluster them into ‘computing platforms’ that operate as a low-cost data center — says processors on modern smartphones deliver higher single-core performance than comparable multicore servers

  Tom's Hardware· Jun 14, 2026
• Backers of $4 billion data center want more time; city wants more answers

  MassLive· Jun 9, 2026
• Hundreds of Lowell Township residents push back on Microsoft data center

  WWMT· Jun 9, 2026
• Wyoming’s Data-Center Boom Meets the ‘Man Camp’ Backlash

  WSJ· Jun 9, 2026

No per-deal tax break is linked to this site yet. No state discloses the recipient of a data-center abatement at the facility level, so per-site deals are rare in the public record. If you have a development agreement or board resolution for this site, send it to us.

No public record of this facility's water use. We check state withdrawal reporting for self-supplied sites; municipally supplied sites only become visible through a public-records request to the local water utility — a per-facility request tool is coming. If you have a utility document for this site, send it to us.

No reported violations as of last sync.

Air Quality Index from the nearest AirNow reporting area (Adirondacks Region), as of 2026-06-10. Regional context — not this facility's own emissions.

Demographics of the census tract this facility sits in (American Community Survey 5-year estimates). Environmental-justice context for who bears the local impacts.

The nearest public school, Potsdam Senior High School in Potsdam, is 0.4 mi from this site (372 students). 3 public schools sit within a mile of the site.

Schools are sensitive receptors for the noise, backup-generator exhaust, and traffic a large data center brings. Straight-line distance to the nearest public school (HIFLD/NCES, US public schools only).

No public-hearing records linked to this site yet. We surface planning-commission and board-of-supervisors dates when a record names a facility. If you know of a hearing on this site, tell us.