Using TPO and DOE/EIA surveys to track wood biomass/ bioenergy – How can we improve methods?

Ken Skog, Project LeaderUSDA Forest Service

Forest Products LaboratoryMadison, Wisconsin

[email protected]

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

Forest

Growing stock (FIA)Non GS (FIA)

Industrial wood source

Primary mill residue (TPO)-- Wood-- Bark

Secondary mill residue-- Wood-- Bark

Other ??

Wood fuels

CharcoalResidential pelletsCommercial pellets

Pyrolysis oilLiquid fuels

Primary products

Industrial roundwood (TPO)

Fuelwood (TPO)

Urban wood waste - construction, demolition

Exported wood fuels

Wood energy sources, intermediate products, and end uses

Short rotation woody crops

End Uses (DOE)

Stand alone electric power-- Pulp & paper-- Wood mills

-- OtherCombined heat and power

-- Pulp & paper-- Wood mills

-- OtherThermal energy

--Industrial-- Residential--Commercial

-- Other ?Transportation

Other ?

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? PelletsWood for bioenergy – electric power or combined heat / powerWood 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 dtUSFS ~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?