Customer case:

Optimized boiler performance by improving maintenance process, shut-down planning and digital support tools

Jul 26, 2023

Collaboration with Borås Energi & Miljö in Sweden, the cooperation started during the take-over of the plant back in 2019. Through a Performance Agreement Valmet and Borås Energi & Miljö enable stable production by minimizing unforeseen shutdowns.


Location Borås Energi och Miljö, Sobacken, Sweden

Enable stable production by minimizing unforeseen shutdowns. Reduce long support lead times which can lead to underperformance of the BFB Boiler.

BFB Boiler with steam capacity of 120 MWth ,48 kg/s, 139 bar, 540 °C

Fuels: Forest residues, bark, wood chips


Process optimization, operation support and continuous plant development activities was implemented together with optimization of the maintenance process.

The comprehensive 3-year Performance Agreement also included:

  • Performance evaluation 4 times per year
  • Digital tools in use for efficient, fast support and process data transfer
  • Shut-down planning and effective supervision
  • 24/7 support via Customer portal and Valmet Performance Center
  • On-demand process and operation support
  • Test of Boiler Safety Related System (SRS test)
  • Annual inspections of main equipment and tube thickness measurement program
  • Shutdown planning and supervision
  • Performance evaluation and reporting 4 times per year
  • Spare part management

Unplanned downtime was minimized, and overall performance increased through fast and effective support, scheduled maintenance stops, and continuous process development based on performance evaluations and inspections.

Key words Process optimization, spare parts, Sweden, Performance Agreement


Technical plant background

Start-up date 2018
Steam capacity 120 MWth 

48 kg/s 

139 bar 

540 °C 

Fuels Forest residues, bark, wood chips