New Project: 5 MWth biomass boiler for supply of heat from prunings to greenhouses in Horst (NL)

HoSt has been awarded the contract to supply and install the 5 MWth HoSt compact biomass boiler, combined with a flue gas condenser, at a greenhouse horticultural business in Horst in the province North-Limburg, the Netherlands. The client’s current biomass boiler installation is replaced. Construction is expected to start in November of this year and first-fire in January 2020.

Wood shreds from necessary pruning maintenance will be used as resource to produce heat. These wood shreds originate from municipal collected compostable material from the city of Horst and its surrounding area, and does not have any other destination anymore. The renewable heat is supplied to two of the client’s bell pepper greenhouses of in total 4.2 hectares, to the neighbor’s bell pepper greenhouse of 2.2 hectares, and to a neighboring ivy greenhouse of 1.8 hectares.

Out with the old, in with the new

The HoSt compact boiler will replace the client’s current biomass boiler installation. The new boiler plant is equipped with extensive flue gas cleaning technology, implemented through urea injection in the furnace. This flue gas cleaning guarantees low nitrogen dioxide emissions of NOx <145/Nm3.

Also included in the scope of supply is a 4 MWth flame tube boiler, a 4.64 MWth furnace with the capacity of 1.83 tonnes per hour of wood shreds, and a multicyclone. Not yet present, but a major gain for the installation is the flue gas condenser which increases efficiency with 20%, which brings the total efficiency to 108% and the total capacity to 5 MWth. The biomass boiler plant will be placed in the existing building.