GREC is using a variety of clean, renewable biomass materials, including:

• Forestry residues and other products (slash and cull trees, pre-commercial thinnings, and whole-tree chips)
• Urban wood residue (wood and brush from clearing activities, tree trimmings from right-of-way maintenance)
• Wood processing residue (round-offs, end cuts, saw dust, shavings, reject lumber)
• Other wood waste (unusable wood pallets, storm/infested woody debris)