Biomass Feasibility Project Final Report - Xcel Energy

DDGs
The DDGs scenario includes only an energy content, market price and moisture content. DDGS
are often used as a supplemental feed for beef cattle and other livestock. The market price of
DDGs represents the opportunity cost to producers of using DDGs as an energy source. The
range of market prices used is the price range of DDGs in Minnesota from May of 2006 to April
2007.
Dairy Manure
The dairy manure scenario includes only an energy content and moisture content. All other
costs are assumed to be born by the dairy operation. The range of moisture contents is taken
from the survey of agricultural biogas systems from which the template was derived.
Feedstock Summary
Below is a summary of assumptions used.
Biomass
Feedstock
Energy
Content
(BTU/lb)
Table VIII-5: Feedstock Characteristics and Costs
Market
Price
($/ton)
Amount
Collected
(%)
MCW
(%)
Site
Processing
Activity
Site
Processing
Costs
($/ton)
Collection
& Loading
($/ton)
Corn Stover 8,191 $10.00 65% 25% Baling $23.57 $3.22
Switchgrass 7,481 $60.00 100% 12% None $0.00 $3.22
Logging 8,669 $2.00 70% 50% Chip $7.50 $1.75
Residue
Hybrid Poplar 8,430 $19.50 100% 50% Chip $15.00 $1.75
DDGS 9,422 $105.00 100% 11% none $0.00 $0.00
Dairy Manure 6,757 $0.00 100% 10% none $0.00 $0.00
Biomass
Feedstock
Trans. Cost
($/ton/mi)
Table VIII-6: Feedstock Costs
Miles Processing Processing
Costs
($/ton)
Storage
($/ton/mth)
Avg.
Storage
Time
(mths)
Collection/
Loading
Costs
($/ton)
Corn Stover $0.10 50 None $0.00 $1.71 6 $3.22
Switchgrass $0.10 50 None $0.00 $1.71 6 $3.22
Logging $0.10 50 Chip $15.90 $1.50 6 $1.75
Residue
Hybrid Poplar $0.10 50 Chip $15.90 $1.50 6 $1.75
DDGs $0.00 0 None $0.00 $0.00 0 $0.00
Dairy Manure $0.00 0 None $0.00 $0.00 0 $0.00
Page 132
Identifying Effective Biomass Strategies:
Quantifying Minnesota’s Resources and Evaluating Future Opportunities