Willow for energy forests is based on improved, fast-growing willow varieties that are very much at home in the Scandinavian climate. Cuttings are planted in the spring and grow to be 2-3m high trees during a growth season. Forests are typically harvested every three to five years, once the trees have attained a height of 5-12 metres and a diameter of 3-8 cm. Rotation harvesting from the same stumps is expected to be economically viable for 25-30 years. Energy forests can also be combined with the bioconversion of wastewater and sludge, and conservation projects.
For further information on the selection of land, soil preparation, crop husbandry and harvesting, please contact Nordic Biomass.