The new straw-fired plant at Auning district heating facility is fully integrated with two existing production units, a wood pellet-fired boiler and a reserve straw-fired boiler.
New boiler design accepts straw of varying quality
In recent years, the market for straw has been characterised by poorer-quality straw than previously, which presents challenges for straw-fired boilers.
“The fluctuating quality has forced us to change the boiler design so that the boiler can increasingly accept both damp and dry straw and still ensure smooth operation,” says John Martin Myrup, a biomass plant specialist at Verdo.
The plant in Auning has also been prepared for a second boiler, while the fuel storage can be doubled, which was not the case with the existing boiler system. Moreover, the plant is future-proofed with scope for expansion and change of the chosen fuel source.