Start Campus Sines Data Campus
1.2 GW AI data center in Sines, Portugal: operational.
- Capacity: 1.2 GW
- Location: Sines, Portugal
- Developer: Start Campus
- Tenant: Microsoft
- Status: operational
- Estimated cost: $9.4B
Start Campus Sines Data Campus is a 1.2 GW AI data center project located in Sines, Portugal, currently operational. It is being built by Start Campus for tenant Microsoft. The estimated build cost is $9.4B. This project is one of thousands of data-center facilities tracked by Data Center Index across Portugal, covering operational, under-construction, announced, and permitted sites.
Project description
Start Campus's Sines Data Campus on Portugal's Atlantic coast has 1.2 GW of total IT capacity secured, up from an initial 495 MW, which Start Campus says makes it the largest colocation site in Europe with fully secured grid power.
Notes
Users: Microsoft; Epoch 'Current power' = 33 MW (may include campus expansions); Cost modeled at ~$44B/GW by Epoch AI
Public companies linked to Start Campus Sines Data Campus
Developers, tenants, and suppliers tracked by Data Center Index with exposure to this project:
- Microsoft (MSFT), tenant · hyperscaler
- Prysmian Group (PRYMF), hv cable · power equipment · mid DC exposure
Frequently asked questions
- What is Start Campus Sines Data Campus?
- Start Campus Sines Data Campus is an AI data center project in Sines, Portugal tracked by Data Center Index. Its status is operational, and it is still adding buildings.
- Where is Start Campus Sines Data Campus?
- Start Campus Sines Data Campus is in Sines, Portugal.
- How big is Start Campus Sines Data Campus?
- Data Center Index tracks Start Campus Sines Data Campus at 1.2 GW, on an estimated $9.4B build. 33 MW of that is live today. The developer or the press states that capacity, in a source dated May 6, 2026.
- Who is building Start Campus Sines Data Campus?
- Start Campus is developing Start Campus Sines Data Campus, with Microsoft named as the tenant.
- When will Start Campus Sines Data Campus come online?
- Start Campus Sines Data Campus is already operating. The next building is expected to go live 2027.
- Which public companies are linked to Start Campus Sines Data Campus?
- Data Center Index links 2 tracked public companies to Start Campus Sines Data Campus: Microsoft (MSFT), Prysmian Group (PRYMF). Each is a developer, tenant or supplier with a sourced link to the project.
Sources
- Epoch AI Frontier Data Centers (epoch · aggregator · 2026-04-29)
- AI Data Center Index facility profile: Sines 4 0 Sin02 Ai Gigafactory Portugal (aidci · aggregator · 2026-04-29)
- Start Campus (startcampus.pt · press · 2024-08-01)
- Investment Monitor (investmentmonitor.ai · press · 2026-05-06)
- Start Campus secures 1.2 GW for SINES (startcampus.pt · press · 2024-08-08)
- Start Campus Hosts the EU's First NVIDIA Blackwell Ultra GPUs for Microsoft with Nscale (lp.startcampus.pt · press · 2025-10-15)
- Start Campus inaugurates SIN01 Data Center (startcampus.pt · press · 2025-04-08)
- Delivering Europe's largest and most sustainable data center (jacobs.com · press · 2026-09-21)
- Start Campus avança em fevereiro com segundo edifício do centro de dados de Sines (rtp.pt · press · 2026-01-13)
- newprojectmedia.com (press · 2026-05-06)
- Start Campus (startcampus.pt · press · 2025-10-15)