Data Center Registry

MillCompute Bates Mill No. 3 AI Data Center

Lewiston, Androscoggin County, Maine

CancelledNo reception on recordAI confirmedRecord updated October 4, 2026

MillCompute Bates Mill No. 3 AI Data Center is a cancelled data center in Lewiston, Maine (Androscoggin County), operated by MillCompute LLC. The public record puts it at announced December 12, 2025, 24 MW planned, a reported $300 million investment.

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

Cancelled

Operator: MillCompute LLC
Facility type: Data center, AI use confirmed
Location: 35 Canal Street, Lewiston, Androscoggin County, ME, 04240
Coordinates: 44.0970, -70.2183 (approximate)
Power capacity: 24 MW planned
Land: Not established from a public source
Investment: $300 million
Announced: December 12, 2025
Utility: Not established from a public source
Power source: Mixed
Cooling: Not established from a public source
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: No reception on record
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.

December 17, 2025
Cancelled
Lewiston City Council voted unanimously (7-0) to reject the proposal after public backlash over power/water use and a requested 20-year tax break Source: Maine Public
December 12, 2025
Proposed
MillCompute LLC proposed a $300M Tier III AI data center occupying the first two floors of Bates Mill No. 3 Source: Bangor Daily News

Opposition and litigation at this site

Nothing on record as of October 4, 2026. No lawsuit, organized opposition, or contested hearing over MillCompute Bates Mill No. 3 AI Data Center in Lewiston, Androscoggin County, Maine appears in the sources this registry tracks. That is an absence in our sources rather than a finding that none exists, and local opposition often predates any coverage a national dataset would pick up.

If you live near this site and something is happening that this page does not show, that is worth telling us. Send us the document and it goes in the record with the source attached. For sites where opposition is already established, see every contested site we track.

Power and water

Initial power from the grid (Central Maine Power service territory); phase 2 planned an on-site natural gas co-generation system.

Notes on the record

Proposed to occupy the first two floors (~85,000 sq ft) of Bates Mill No. 3; estimated 20-30 jobs and $300M investment; included a 20-year TIF (90% tax return years 1-10, 85% years 11-20). Phase 2 contemplated an on-site natural gas co-generation system. Rejected unanimously by the Lewiston City Council on 2025-12-17 after sustained public opposition over water/power use and the tax break request.

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.

Cooling method and water use
Tax abatements or other public subsidy
Permanent jobs promised
Land area
How the community has received it
Which utility serves it

Which document closes each gap

Cooling method and water use: The water service agreement, any groundwater appropriation permit, and the mechanical narrative in the site plan.
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.
How the community has received it: Planning commission and governing body minutes, public comment records, and any petition or lawsuit filed in the county.
Which utility serves it: The electric service agreement or the utility's filing with the state public utility commission.

Have one of these documents? Send it to us and we will add it to the record with attribution.

Other sites within 30 miles

Distances are between recorded coordinates, many of which are a city or county centroid, so treat them as approximate. Cumulative load on one utility and one aquifer is the question a planning commission rarely asks.

FirstLight Brunswick Data Center · Brunswick · FirstLight Fiber20 mi · Operating
Sentinel Data Centers Androscoggin Mill Campus, Jay · Jay · Sentinel Data Centers28 mi · Cancelled · 82 MW · Supported
Wiscasset Data Center (Old Ferry Road Site) · Wiscasset · Unnamed developer (NDA with town)29 mi · Proposed · Opposed

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Living near MillCompute Bates Mill No. 3 AI Data Center?

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Questions people ask about this site

Is there opposition to the MillCompute Bates Mill No. 3 AI Data Center in Lewiston?

Has anyone filed a lawsuit over the MillCompute Bates Mill No. 3 AI Data Center?

No lawsuit over MillCompute Bates Mill No. 3 AI Data Center appears in the record we track as of October 4, 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 MillCompute Bates Mill No. 3 AI Data Center use?

No water withdrawal figure for MillCompute Bates Mill No. 3 AI Data Center is on record here. Water use is rarely published voluntarily; it usually surfaces through a utility service agreement or a state withdrawal permit, both of which are public records. We leave the number blank rather than estimate one.

Who operates MillCompute Bates Mill No. 3 AI Data Center, and how big is it?

MillCompute LLC is the operator on record. Capacity on record is 24 MW.

How to cite this page

SueDataCenters.org Data Center Registry, "MillCompute Bates Mill No. 3 AI Data Center," updated October 4, 2026, https://suedatacenters.org/data-centers/millcompute-bates-mill-lewiston-me.

Facility data from Compute Atlas (E. Kubiak), version 1.34.1 (October 4, 2026), licensed CC BY 4.0, record https://www.compute-atlas.com/facilities/millcompute-bates-mill-lewiston-me, retrieved October 11, 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.Lewiston mill $300M AI data center · Bangor Daily News · retrieved October 4, 2026
2.Lewiston city council shoots down data center proposal · Maine Public · retrieved October 4, 2026
3.Tier III AI data center proposed for Lewiston Bates Mill · Baxtel · retrieved October 4, 2026

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