- Pure DC has launched a data centre campus in Seinäjoki that could exceed 550 MW and €7.5 billion if fully developed
- The fully leased 110 MW first phase has secured permits and power, and its first substation is already operational
Fact
Pure DC has launched its SJK01 data centre campus in Seinäjoki, Finland. The company plans to invest more than €1.5 billion in the first phase, which will deliver 110 MW of IT capacity. Pure DC said the phase is fully leased, with planning permission and power secured. The first data hall substation is already operational.
The wider site could exceed 550 MW of capacity and €7.5 billion of total investment, subject to further permits and customer contracts. The campus has access to more than 700 MVA of renewable grid power and is designed around repeatable 40 MW modules for later expansion.
Assessment
Pure DC has matched the committed first-phase demand with the electrical infrastructure needed to begin delivery. This matters because a large grid allocation does not make a data centre campus deliverable on its own. Developers still need signed customers, approvals, and a build plan that can move in step with demand.
The repeatable 40 MW modules are the important detail. Pure DC can deliver the first 110 MW under existing contracts, then add follow-on capacity as it secures more customers and permits. This avoids treating the full 550 MW-plus plan as a single construction commitment and gives the company a phased path from secured power to operational capacity.
For BTW readers, the sequencing is the signal. Pure DC treats grid access, customer contracts, and construction as interlocking project milestones. The project shows that power becomes commercially useful only when it can be converted into customer-backed capacity.
What to Watch
Watch whether the first 110 MW comes online and whether Pure DC secures contracts and approvals for the next 40 MW modules. These milestones will show whether the company can scale the campus in line with contracted demand.

