Thun, CHE

Waste to Energy


130'000 t/a

Energy recovered

district heat, electricity

Thermal energy

1 x 46 MWth

The KVA Thun WtE plant treats 100,000 tonnes of combustible waste a year from 300,000 people in 150 municipalities. The town on Lake Thun is the economic centre of this part of Canton Bern and well known for its ski resorts and picturesque landscapes. The WtE covers around one third of the town’s electricity requirements as well as supplying district heat for adjacent public facilities.


  • Type of system: water-cooled HZI reciprocating grate
  • Fuel: municipal waste, sewage sludge
  • Calorific value: 12.6 MJ/kg
  • Number of lines: one
  • Boiler design: four-pass boiler with external economiser
  • Flue gas treatment: electrostatic precipitator, SCR DeNOx, residual heat recovery, wet scrubber, circulation preheater, bag filter for removing dioxins


  • AG für Abfallverwertung, AVAG

Commencement of operation

  • 2004

Components supplied by HZI

  • combustion, boiler, energy recovery, flue gas treatment, fly ash scrubbing, wastewater treatment, electrical systems and control system