FirstLight Data Center
340 Cumberland Avenue · Portland, Cumberland County, ME
Source: OpenStreetMap
FirstLight Data Center is a mapped data center in Cumberland County, ME, operated by Prime Data Centers.
Reporting by Eric Keller · Updated Jun 14, 2026
Most sites are mapped — located but awaiting a second source. How we verify
Dot size = disclosed capacity (MW). Smallest = undisclosed, not small.
Overview
source: linkFirstLight is a mapped colocation data center in Portland, Cumberland County, Maine, run by Prime Data Centers. The site draws power from Central Maine Power Co inside the ISNE grid. Available records do not disclose a corporate parent above Prime Data Centers, and no capacity figure is listed.
Operator chain
- Ultimate parentPrime Data Centers
- Files asPrime Data Centers
- This facilityFirstLight Data Center
The grid behind this site, right now
source: ISONE · gridstatus- 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.
In the news
source: Google News- Prime Breaks Ground on $3B Phoenix Data Center CampusCommercialSearch· May 22, 2026
- Prime Data Centers Launches First Phase of 240MW Phoenix Campus as AI Infrastructure Demand Acceleratescitybiz· May 21, 2026
- Prime Data Centers starts work on second McClellan facility amid AI demandThe Business Journals· May 8, 2026
- Oregon's Data Center Explosion: Who Benefits and Who Bears the Cost?NPR for Oregonians· Apr 2, 2026
- A 44-acre Lake Erie waterfront site is being pitched for an AI data centerStock Titan· Apr 1, 2026
- Prime, NTT Data Centers expanding in Sacramento by many megawattsThe Business Journals· Mar 12, 2026
Tax breaks & subsidies
source: Good Jobs First / GASB 77No 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.
Water use
No measured record exists, so this is a low-confidence model from 5 MW (interconnection capacity): 1.2 L/kWh cooling (cool climate) + 0.45 gal/kWh embedded in US grid average. How we estimate. Have a utility document? Send it and we'll replace this with the real figure.
EPA permits & violations
source: EPA ECHONo reported violations as of last sync.
Air quality near this site
source: AirNowAir Quality Index from the nearest AirNow reporting area (Southwest Coast), as of 2026-06-10. Regional context — not this facility's own emissions.
Who lives nearby
source: Census ACS 2023Demographics of the census tract this facility sits in (American Community Survey 5-year estimates). Environmental-justice context for who bears the local impacts.
Nearest school
source: HIFLD / NCESThe nearest public school, Portland High School in Portland, is 669 ft from this site (952 students). 4 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).
Hearings timeline
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.