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Published byNorman Heath Modified over 9 years ago
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Ken Skog, Project Leader USDA Forest Service Forest Products Laboratory Madison, Wisconsin kskog@fs.fed.us Using TPO and DOE/EIA surveys to track wood biomass/ bioenergy – How can we improve methods? Biomass/ Bioenergy Workshop Houston, TX February 25, 2010
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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?
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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
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Wood energy sources, intermediate products, and end uses
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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
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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?
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Wood energy sources, intermediate products, and end uses – 2006 Could a survey of pellet mills determine uses including exports?
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Wood energy sources, intermediate products, and end uses – 2006 How will uses of short rotation woody crops be determined? Part of TPO studies?
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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
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Wood energy sources, intermediate products, and end uses – 2006 DOE vs FS
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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?
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