slightly. Prices of waste wood from waste wood-panels (A II–A III)
increased 4% on average per year in the same period. Contaminated
waste wood (A IV) increased 19% in the same period. The increase
in prices can be related to feed-in tariffs for thermal electricity produced
from biomass based on the German Renewable Energy Act
(German Government, 2014). Price changes of A II, A III and A IV
have been very volatile, tending to decrease slightly. Market prices
of lignocellulose virgin wood particles and fibres from round wood
for WPC production with particle size