Nebius Béthune AI Data Center: 240 MW Plan, Phased Delivery and Investor Risks

FJI source-qualified: four-document gate met, including project-specific government evidence. Qualification evidence and decisions →

Project status: Redevelopment and delivery described by project participants; current energized IT capacity and commercial operation unverified. Capacity scope: 240 MW planned full deployment; phased targets differ by source; current delivered IT load unverified. How we verify evidence.

Published October 12, 2026 · Evidence reviewed October 12, 2026 · Participant-reported construction; operation unverified

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The one-minute investor takeaway

Béthune is a meaningful Nebius infrastructure project because it combines an existing industrial building with a specialist campus developer and an AI cloud participant. Our analysis: the key question is how quickly phased power and facility delivery become usable computing for customers. The 240 MW headline describes a planned full development, not verified current computing capacity. The project remains participant-reported construction and delivery; commercial operation is not established by this review.

Who is building what

SIG’s September 19, 2025 disclosure identifies Azur Datacenter’s intended use of about 280,000 square feet within the former Bridgestone industrial site. Circular Datacenter identifies itself as a contractor on Azur’s programme for Nebius. These sources establish named roles, not all lease terms, ownership interests or contractual obligations. Nebius’s March 31, 2026 company disclosure describes a 240 MW AI factory near Lille. Read the individual disclosures below before assigning costs or earnings to a participant.

Timeline: preserve the different phase targets

SIG originally described an early-2026 launch expectation. DCD’s February 12 reporting attributes a late-summer first phase and roughly half-capacity end-2026 expectation to Nebius management. Nord France Invest’s June 10 description gives around 27 MW initially, 120 MW in 2026 and full capacity in 2027 or 2028. Circular Datacenter describes 120 MW by end-2026 and 240 MW in 2027. These statements have different dates and levels of specificity; they are not a single verified commissioning schedule. An elapsed target does not prove either completion or cancellation.

Power and readiness: what is still missing

The contractor’s delivery description supports treating the redevelopment as under construction on a participant-reported basis. It does not independently establish which electrical phase is energized or how many megawatts reach computing equipment. We have not verified a phase-specific grid service agreement, current energized IT load or customer acceptance. Accordingly, this profile does not assign a current operating capacity or name a campus customer beyond the documented Nebius relationship.

Government context, with the right boundaries

The Hauts-de-France regional government’s June 1 release identifies Nebius’s planned redevelopment of the former Bridgestone site. Its EUR 8 billion announcement is retained as a regional-government-reported investment ambition, not audited spending or closed financing. A French Treasury bulletin also identifies Azur and the planned 240 MW development. Neither economic announcement is an environmental permit, construction completion certificate or operating authorization. The prefectural consultation dossier was located but could not be retrieved; final environmental decisions and conditions remain unverified.

Financial significance · Our analysis

Campus development, electrical infrastructure, computing hardware and cloud service delivery create different economic exposures. A property developer can deliver a hall while the cloud operator still needs equipment installation, acceptance and sufficient customer use. Without disclosed lease pricing, financing allocation, installed equipment and utilization, a campus-specific revenue or return estimate would depend on unsupported assumptions. We therefore do not convert the announced investment envelope or planned MW into Nebius earnings, supplier orders or a stock valuation.

What would change the assessment

The strongest next evidence would be a dated decision establishing applicable permit conditions, followed by phase-specific energization and computing acceptance. A customer-availability announcement should identify the site and scope rather than describe Nebius’s global platform. Financial disclosures would become more informative if they separate this campus’s obligations and expenditure from portfolio-wide commitments. An updated source can strengthen one milestone without proving the rest of the campus is complete.

Investor takeaway · Our analysis

Follow the conversion from an industrial redevelopment to powered halls, installed computing and paying workloads. Béthune belongs in the Nebius research footprint because its location, participants and planned scale are supported. Its investment significance will become clearer as the electrical phases and customer service are documented. Until then, keep the proposed 240 MW envelope, government investment announcements and current operating evidence separate.

Sources and claim boundaries

1. Nebius · 2026-03-31

   Identifies a 240 MW planned AI factory near Lille; full deployment is a future capacity envelope.

2. Hauts-de-France regional government · 2026-06-01

   Regional-government press release identifies Nebius at the former Bridgestone site in Béthune; EUR 8 billion is announced investment, not verified spending or closed finance. Complete government-authored PDF retrieved via chamber-of-commerce hosting.

3. SIG · 2025-09-19

   Identifies Azur Datacenter taking 26,000 square meters within the former Bridgestone site. Historical early-2026 target does not establish completion.

4. Circular Datacenter · Publication date not established

   Names its contractor role for Azur’s Nebius programme; describes 120 MW end-2026 and 240 MW in 2027 targets. Publication date not established; reviewed October 12.

5. Nord France Invest · 2026-06-10

   Identifies the Nebius–Azur partnership and phased target of approximately 27 MW initially, 120 MW in 2026 and 240 MW by 2027 or 2028. Promotional disclosure is not independent operating measurement.

6. DatacenterDynamics · 2026-02-12

   Reports former Bridgestone redevelopment, planned 240 MW and management-attributed historical phased delivery targets.

7. French Treasury · Publication date not established

   Page 10 identifies Béthune, Azur and planned 240 MW. Historical July delivery expectation and reported investment commitments do not verify current commissioning; exact bulletin date not established in this review.