Transcript Document

Using TPO and DOE/EIA surveys
to track wood biomass/ bioenergy –
How can we improve methods?
Biomass/ Bioenergy Workshop
Houston, TX
February 25, 2010
Ken Skog, Project Leader
USDA Forest Service
Forest Products Laboratory
Madison, Wisconsin
[email protected]
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 fuels
End Uses (DOE)
Charcoal
Residential pellets
Commercial pellets
Pyrolysis oil
Liquid fuels
Stand alone electric power
-- Pulp & paper
-- Wood mills
-- Other
Combined heat and power
-- Pulp & paper
-- Wood mills
-- Other
Thermal energy
--Industrial
-- Residential
--Commercial
-- Other ?
Transportation
Other ?
Forest
Growing stock (FIA)
Non GS (FIA)
Primary products
Industrial roundwood
(TPO)
Fuelwood (TPO)
Industrial wood source
Primary mill residue (TPO)
-- Wood
-- Bark
Secondary mill residue
-- Wood
-- Bark
Other ??
Urban wood waste construction, demolition
Short rotation woody crops
Exported wood fuels
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?