FirstLight

FirstLight is a mapped data center in Portsmouth, Rockingham County, New Hampshire, with a reported footprint of 9,316 square feet. The site draws power from Unitil Energy Systems within the ISNE balancing authority. Available records do not disclose an operator or ultimate parent.

• Natural Gas37.8%
• Nuclear34.8%
• Hydro9.2%
• Solar8.7%
• Biomass5.2%
• Wind3.8%
• Other0.5%

Real-time generation mix for the ISONE grid this site draws from, as of Jun 16, 2026, 2:48 PM. ISO-wide, not this facility's own metering. Source: gridstatus.

• FirstLight Expands Bedford, NH Data Center - PR Newswire

  PR Newswire· Mar 10, 2026
• FirstLight expands data center in Bedford, New Hampshire - Light Reading

  Light Reading· Mar 10, 2026
• FirstLight expands New Hampshire data center - Data Center Dynamics

  Data Center Dynamics· Mar 10, 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 (Coastal Rockingham County), 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, New Franklin School in Portsmouth, is 1.6 mi from this site (259 students).

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.