Ken Skog, Project Leader USDA Forest Service Forest Products Laboratory Madison, Wisconsin Using TPO and DOE/EIA surveys to track wood biomass/ bioenergy – How can we improve methods? Biomass/ Bioenergy Workshop Houston, TX February 25, 2010

Background  Forest Service provides some wood energy source estimates –Fuelwood production –Primary mill residue use for fuel  DOE/EIA provides wood energy end use estimates –Electric power –Industrial, residential, commercial, transportation  A lot is missing –Intermediate wood fuels (pellets, liquid fuels potentially) –Sources of fuel used for DOE end use categories –Why don’t source estimates match end use estimates?  What steps could improve estimates?

What should we track? – traditional TPO & wood biomass for bioenergy  For the timber market – –Which wood sources are consumed – NG/NGS, HW/SW [same for wood for bioenegy?] –What is consumed by key industries Industrial roundwood (several categories), Fuelwood Expand Fuelwood category? –Roundwood for residential fuelwood –Roundwood/ chips for pellets –Roundwood/ chips for other energy users  For primary product markets (sawmills, panels, pulp/paper) –What residues are produced/ who consumes –Expand residue fuel uses? Pellets Wood for bioenergy – electric power or combined heat / power Wood for bioenergy - other

Wood energy sources, intermediate products, and end uses

Wood energy sources, intermediate products, and end uses – 2006 Possible revised TPO wood energy categories (forest wood sources)  Roundwood for residential fuelwood  Roundwood/ chips for other energy users  Roundwood for pellets

Wood energy sources, intermediate products, and end uses – 2006 Should we expand primary wood residue USES? Pellets Wood for bioenergy – electric power or combined heat / power Wood for bioenergy - other Should we survey pellet mill wood SOURCES? Should we survey secondary mill residue USES?

Wood energy sources, intermediate products, and end uses – 2006 Could a survey of pellet mills determine uses including exports?

Wood energy sources, intermediate products, and end uses – 2006 How will uses of short rotation woody crops be determined? Part of TPO studies?

Wood energy sources, intermediate products, and end uses – 2006 Should FS & DOE work to reconcile wood energy estimates? For 2006 DOE ~129 million dt USFS ~109 million dt

Wood energy sources, intermediate products, and end uses – 2006 DOE vs FS

Summary of suggestions to improve tracking of wood energy sources and uses  Expand Timber product output categories to include –Roundwood for residential fuelwood –Roundwood/ chips for other energy users –Roundwood for pellets  Expand primary wood residue USES –Pellets –Wood for bioenergy – electric power or combined heat / power –Wood for bioenergy – other  Survey pellet mill wood SOURCES & pellet USES/ exports  Survey secondary mill residue USES?  Are short rotation woody crops uses part of TPO studies?  Should FS or DOE attempt to reconcile differing estimates?