Industrial building with red brick exterior, pipes, and adjacent structures, labeled "loiste."

Loiste Lämpö’s new production entity based on waste heat in the implementation phase – Sweco continues as a project partner

Published 17.9.2025

In the future, district heating in Kajaani will mainly be produced with heat pump, electric boiler and energy storage solutions. The goal is to have production up and running in 2026. The new production entity will mainly operate using the waste heat of the data center. Heat pump plants will be scalable, which means that capacity can be increased in stages as the computing power of the data centers increases. Sweco has carried out the preparatory basic design of the new plants, and during the implementation phase, Sweco will act as the EPCM consultant for the project, responsible for project management, design, procurement, construction management, site management and commissioning.

“Loiste Lämpö’s district heating production makes heat pump technology available to our customers without any in-house equipment investment. It enables a modern way of producing heat in a resource-wise way from waste energy. The project will significantly improve the security of supply, cost-efficiency and the competitiveness of district heating, which means that we believe that Loiste’s district heating will be an attractive heating solution for our existing and new customers. Sweco has impressive expertise in heat production and a broad vision in the implementation of low-carbon energy solutions,” says Marko Saviniemi, Business Director at Loiste Lämpö.

“Loiste Lämpö has an ambitious goal in renewing the production methods of district heating. Sweco has a lot of experience and expertise in district heating electrification projects, and it is great that Loiste Lämpö also trusted our expertise,”  says Tuomas Salminen, Director of Sweco’s Industry and Energy Division.

Further information:
Tuomas Salminen, Director of Industry and Energy Division, Sweco, tel. 0400 819 547, tuomas.salminen@sweco.fi
Marko Saviniemi, Business Director, Loiste Lämpö, tel. 050 3303572, marko.saviniemi@loiste.fi
Tiina Varhee, Press Contact, Sweco, tel. 040 723 1231, ext.tiina.varhee@sweco.fi