Turnkey data center

The turnkey data center service enables a fully customizable solution for example, to research needs. Together with trusted partners we offer a green and scalable data center environment as well as fully functional, tested processes for utilizing waste heat in the district heating network and in business park operations. The utilization of waste heat brings a saving of up to 40% on the operator's total electricity costs.

Customizable data center solutions

Our experts and partners are ready to help you with your project design and excecution data center projects. Our latest implemented solution is the LUMI data center, which is attaining negative overall CO 2 emissions and high HPC power densities. Tell us your needs and we will suggest the most suitable data center concept for you.


LUMI data center


Renforsin Ranta offers data centers with more than 200 MW of electricity as well as several greenfield and brownfield location options. Our concepts and processes have been refined based on our previous experiences, and our close cooperation with the City of Kajaani ensures smooth permitting process and open dialogue with the authorities. Our local expertise is ready to support your project in all stages.

The LUMI data center is located in the RATA building, which has expansion capacity up to 20 MW (Options 1 and 2). The KONE building offers facilities for a data center of up to 100 MW (Option 4). CSC's national data centers are located in the VARASTO building, which offers expansion capacity at least 10 MW (Option 3).


Renforsin Ranta brownfield options


The RATA building offers pre-configured facilities for rapid brownfield implementation.



  • Excess heat utilisation enables CO2 negative data center operations.
  • Pre-configured modular data center concepts for multiple Tier levels
  • +200 MW existing electrical capacity
  • +200 kW power densities per rack


  • Environmentally friendly data center operations available instantly
  • Cost efficient operation costs and minimized PUE starting from 1.03

  • Customizable, modular data center concepts
  • Extensive local HPC expertise (CSC, Atos & HPE)

Jukka-Pekka Partanen

tel. +358 40 544 3501

Mikko Kerttula

Project manager
tel. +358 50 381 2766

Veli-Antti Leinonen

tel. +358 44 740 1010