Ecotuning® Joensuu CHP plant 2009–2010

Ecotuning® finds process bottlenecks, calculates impacts and proposes the cure to reach an excellence in power plant performance.

Joensuu power plant

Description of the project

Ecotuning® project’s target was to improve plant efficiency and reduce fuel consumption by 1% (170 k€). Any proposed investment payback time should be less than two years. Project was carried out in a close co-operation with site personnel. This ensured high engagement of the staff.

During the project different kinds of audits were conducted supplemented with accurate thermal performance measurements. Power plant was modelled and each savings impact analysed by using Fortum’s own power plant simulator (Solvo®). As an output of Ecotuning® project, customer got trained personnel with a greater awareness of the energy-efficiency issues, list of improvement proposals with specified benefits, payback periods and action plan supporting each improvement implementation.

Customer benefits

Findings and investments:
  • Total number of improvements proposed: 13 (7 without any investment)
Investments required:
  • Totally about 150 k€
Payback time for investments:
  • All savings below two years
Calculated savings for customer:
  • Calculated savings totally about 380 k€/a
  • Savings without investments > 110 k€/a


Joensuu CHP plant
BFB Boiler (Wood/Peat) + Steam turbine + HOB
Power and DH capacity: 50MWe / 110 MWth + 30 MWth
Location: Joensuu, Finland
Customer: Fortum Heat
Project duration: 2009-2010
Services: Full scope Ecotuning® project

"Fortum has set ambitious targets to improve plants’ energy efficiency continuously. Ecotuning® product matched well with our strategy. It was carried out by experienced specialists who also trained our staff. It is now clearly seen that our expectations are even exceeded!"

Timo Partanen, Power plant manager, Fortum Heat, Joensuu, Finland


Ilkka Salmensaari
Product Manager
Tel: +358 50 453 4876
[email protected]