Over the past decade SUNY ESF scientists in Syracuse, New York have developed a system for growing willows in dedicated energy plantings. Dedicated Willow Biomass Plantations Willow biomass plantations in New York are adapted from a commercially operational system in Sweden, where over 35,000 acres of willow energy plantations have been established. Initial results using conservation tillage practices also show promise. Weed control, using a combination of mechanical and chemical techniques, is essential during the first year of establishment. Trees are cut after the first year to promote sprouting.
Harvesting occurs every three to four years in the winter after leaves fall from the trees.
Modified corn or sugar cane harvesters, or specially designed machines, are used to cut and chip the willows in one process. Following each harvest the plants resprout. Plantations are fertilized once at the start of the growing season following cutback and harvest. Willow Biomass as an Energy Source Willow biomass is a clean, versatile wood energy source with potential as a fuel for electricity generation. It can be burned directly, co-fired with coal, gasified for use in gas turbines, or converted into liquid fuels.