Valstrand District Heating

About This Project

Valstrand District Heating,
Birkenes, Norway


For the new Valestrand District Heating Plant, Energos Contract has been turnkey contractor. Included in scope of delivery was; new boiler house, complete technical installation and 550 meters of district heating distribution system.


  • Start-up ground work – April 2010
  • Start-up heat delivery – September 2010
  • Biofuel boiler – 400 kW, 64 m3 wood chip silo
  • Gas boiler – 1120 kW, 32 m3 propane tank


Plant runs on biofuel as base case and gas as peak and backup fuel.


Biofuel is moist wood chips including bark from natural wood, according to CEN/TS 14961 P100, moist <50 %, but also dry wood chips <35% (with flue gas recirculation).


Plant supplies heat and domestic hot water for:

  • Secondary School
  • Gym / Cultural centre
  • Sports building
  • Primary school


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