Data Center Registry
Loring LiquidCool Data Center (Green 4 Maine Campus)
Limestone, Aroostook County, Maine
Loring LiquidCool Data Center (Green 4 Maine Campus) is a proposed data center in Limestone, Maine (Aroostook County), operated by LiquidCool Solutions / Green 4 Maine. The public record puts it at announced October 2025, 50 MW planned. It is the subject of active public debate, with hearings, petitions, or organized opposition on record.
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
Proposed
- Operator
- LiquidCool Solutions / Green 4 Maine
- Facility type
- Data center, AI use confirmed
- Location
- Limestone, Aroostook County, ME
- Coordinates
- 46.9502, -67.8849
- Power capacity
- 50 MW planned
- Land
- Not established from a public source
- Investment
- Not established from a public source
- Announced
- October 2025
- Utility
- Versant Power
- Power source
- Hydro
- Cooling
- Closed loop
- 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
- Contested
- Source confidence
- Confirmed by multiple independent sources or official documentation
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.
- March 2026ProposedMaine Legislature advances LD 307 data center moratorium (20MW+ facilities); Loring project above threshold with 24MW will-serve agreement. Governor Mills ultimately vetoed LD 307; veto sustained June 2026, clearing path for Loring project. Source: Bangor Daily News
- October 2025ProposedLiquidCool Solutions and Green 4 Maine announce Maine's first AI-focused data center at Building No. 7230, former Loring AFB; operational target within 6 months of October 2025 announcement Source: Bangor Daily News
Opposition and litigation at this site
Yes. Loring LiquidCool Data Center (Green 4 Maine Campus) in Limestone, Aroostook County, Maine is contested. Hearings, public comment, petitions, or organized opposition are on record, and no lawsuit has been filed so far. Maine LD 307, pending in the Legislature as of March 2026, would bar permits for facilities over 20MW until late 2027, directly threatening this project's 24MW power agreement (developer says it 'can live with' the cap but it blocks the planned 50MW scale-up).
How the community has taken it
Reception is a sourced signal, not an editorial judgment: contested means active public debate is on record, with hearings, petitions, or organized opposition, without litigation.
Maine LD 307, pending in the Legislature as of March 2026, would bar permits for facilities over 20MW until late 2027, directly threatening this project's 24MW power agreement (developer says it 'can live with' the cap but it blocks the planned 50MW scale-up).
Power and water
Power from Canadian hydro via Versant Power (Aroostook County utility). 24MW will-serve agreement confirmed; 40MW immediately available at base; potential to scale to several hundred MW. Fiber connected to Three-Ring Binder statewide network (MAE-East internet exchange).
LiquidCool immersion cooling uses polyalphaolefin oil (non-conductive); no water consumed for cooling per developer claim.
Notes on the record
115,000 sq ft leased within Green 4 Maine's 450-acre innovation hub on former USAF base. LiquidCool Solutions is a Minnesota-based technology company. First phase starts at 5-6MW; 50MW total available at base. Project marketed as cross-border US/Canada AI hub.
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
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.
Have one of these documents? Send it to us and we will add it to the record with attribution.
Questions people ask about this site
Is there opposition to the Loring LiquidCool Data Center (Green 4 Maine Campus) in Limestone?
Yes. Loring LiquidCool Data Center (Green 4 Maine Campus) in Limestone, Aroostook County, Maine is contested. Hearings, public comment, petitions, or organized opposition are on record, and no lawsuit has been filed so far. Maine LD 307, pending in the Legislature as of March 2026, would bar permits for facilities over 20MW until late 2027, directly threatening this project's 24MW power agreement (developer says it 'can live with' the cap but it blocks the planned 50MW scale-up).
Has anyone filed a lawsuit over the Loring LiquidCool Data Center (Green 4 Maine Campus)?
No lawsuit over Loring LiquidCool Data Center (Green 4 Maine Campus) appears in the record we track as of July 26, 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 Loring LiquidCool Data Center (Green 4 Maine Campus) use?
No water withdrawal figure for Loring LiquidCool Data Center (Green 4 Maine Campus) is on record here. Cooling is recorded as closed_loop, 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 Loring LiquidCool Data Center (Green 4 Maine Campus), and how big is it?
LiquidCool Solutions / Green 4 Maine is the operator on record. Capacity on record is 50 MW.
How to cite this page
SueDataCenters.org Data Center Registry, "Loring LiquidCool Data Center (Green 4 Maine Campus)," updated July 26, 2026, https://suedatacenters.org/data-centers/liquidcool-loring-afb-me.
Facility data from Compute Atlas (E. Kubiak), version 1.32.0 (September 7, 2026), licensed CC BY 4.0, record https://www.compute-atlas.com/facilities/liquidcool-loring-afb-me, retrieved September 14, 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.Maine's 1st AI Data Center Planned for Aroostook County · Bangor Daily News · retrieved July 6, 2026
- 2.Maine's Proposed Data Center Ban Could Restrict Facility Planned at Loring · Bangor Daily News · retrieved July 6, 2026
- 3.HIFLD Electric Retail Service Territories (ORNL/DOE-CESER, 2023-08 vintage) · Oak Ridge National Laboratory (ORNL) / HIFLD · retrieved July 23, 2026
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