Success Stories

From The Leader in Clean Power Production Technologies

Stockholm Exergi AB

Hogdalen Economizer Replacement Babcock Wilcox Renewable Service

Economizer Replacement, Line 3 - Högdalen, Sweden

Hogdalen Economizer Replacement - Babcock & Wilcox Renewable ServiceHogdalen Economizer Replacement - Babcock & Wilcox Renewable ServiceClient: Stockholm Exergi AB 

Year: 2020


  • Contract: 22.12.2019
  • Delivery on site: 03.08.2020
  • Hand over: 21.09.2020


  • Fuel: Waste
  • Steam temp: 360°C
  • Steam pressure: 36 bar(g)

Project description

Delivery by Babcock & Wilcox Renewable Service included detail design, engineering, procurement, manufacturing and replacement of the existing economizer at Högdalen waste-to-energy boiler in Stockholm, Sweden.

The boiler was commissioned in 1986.

Economizer 1 was replaced during the annual maintenance shutdown.

B&W Renewable improved the existing design of the economizer and eliminated problems with cracks in weldings at the top headers.

  • Design of new economizer
  • Dismantling of old economizer, total weight approximately 28 tons 
  • Mechanical installation of the scope of delivery
  • Economizer insulation
  • Commissioning, testing and training of personnel
  • Documentation