In 2006, Pepper Nursery Vink Sion has been extended from 3 to 7 ha. greenhouses with peppers. HoSt built a wood-fired combined heat and power plant for the heat of the greenhouses. HoSt is responsible for the design, delivery and commissioning of the installation. HoSt also takes care of the maintenance.

Project Milestones

Start project May 2006
Start-up / First fire July 2007


Wood storage 2 x 200 m³
Furnace 5.7 MWth
Water tube boiler 4.9 MWth, 55 barg, 470°C
Steam turbine 1.15 MWe
Steam condenser 3.6 MWth high temp. level
Flue gas condenser 1.7 MWth low temp. level
E-filter <25 mg/Nm³ at 6% O2 dry
Efficiency 113%


  • Heat supply at two temperature levels
  • Very high electrical efficiency by applying water tube boiler