CELLULOSIC BIOMASS POTENTIAL
Source: National Renewable Energy Laboratory (NREL) (2007)
Within the national map, each state is color-coded based on the scale below. Biomass potential includes all existing dry tons of biomass from crop residue, primary mill residue, secondary mill residue and urban wood residues. There are other potentially suitable categories of biomass not included here; in some regions the available data may include biomass that is not economically or ecologically sound. Thus the figures provided below serve as an indicator of potential, rather than a precise representation.
The figures below correspond with the biomass potential map scale, and they are measured in dry tons of cellulosic biomass per year, by state.
- Up To 500,000 (Lowest Potential)
- 500,001 to 3,000,000
- 3,000,001 to 7,000,000
- 7,000,001 to 10,000,000
- 10,000,001 or more (Highest Potential)
Within each state map, each county is color-coded based on the scale below. The figures represent the total dry tons of cellulosic biomass per year, by county.
- Up To 12,000 (Lowest Potential)
- 12,001 to 50,000
- 50,001 to 100,000
- 100,001 to 300,000
- 300,001 or more (Highest Potential)
- Crop residues data includes the following crops: corn, wheat, soybeans, cotton, sorghum, barley, oats, rice, rye, canola, beans, peas, peanuts, potatoes, safflower, sunflower, sugarcane and flaxseed. All estimates were developed using total grain production by county for 2002 reported to the U.S. Department of Agriculture. Residues were calculated by estimating that 35% of total residue could be collected as biomass, assuming that 30% would be used for soil cover and protection and 35% for other purposes such as animal consumption, bedding, silage, etc.
- Primary mill residues includes wood and bark generated at manufacturing plants when round wood products are processed into primary wood products, such as slabs, edgings, trimmings, sawdust, veneer clippings and cores, and pulp screenings. The number includes mill residues that would otherwise be recycled as byproducts, as well as wood that would otherwise be disposed of as waste.
- Secondary mill residues are wood scraps and sawdust from woodworking shops, furniture factories, mill work, truss manufacturing, wood container and pallet mills and wholesale lumber yards.
- Urban wood residues are municipal solid waste wood chips, pallets and yard waste, utility tree trimming and/or private tree companies and construction/demolition wood. Assumptions were made by NREL in estimating these figures because very little data exists.
ADVANCED BIOFUELS FACILITIES
Source: Biotechnology Industry Association (2010)