Waste Not, Want Not: On farm biodigesters
Transcript of Waste Not, Want Not: On farm biodigesters
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Waste Not, Want Not: Opportunities for Biodigesters on Farms,
and Barriers to Adoption
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What are we talking about?
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Sources: Des Moine Register; Warren Gretz, DOE/NREL; Iowa State University; pennlive.com; Sri Lanka Mirror
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Your environmental voice since 1970 www.cleanwisconsin.org | Twitter: @cleanwisconsin
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Outline
• Potential• Benefits• Barriers• Opportunity
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60%
53%
47%
43%
21%
19%
13%
25%
36%
36%
42%
32%
34%
37%
5%
6%
10%
12%
21%
27%
6%
20%
17%
10%
32%
7%
6%
0% 20% 40% 60% 80% 100%
*Wind
*Solar
Hydropower
Natural gas
*Biomass
Nuclear
Coal
Strng. Sup. S.W. Sup. S.W. Opp. Strng. Opp. DK/NA
In Wisconsin, majorities support increased use of wind and solar.
5a/b/c/d/e/f/i. Here is a list of specific sources of energy. Please tell me whether you would support or oppose increasing use of that source of energy to meet your state’s future needs. *Split Sample
Total Support
Total Oppose
85% 11%
89% 7%
83% 7%
85% 12%
53% 16%
53% 41%
50% 44%
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What are biodigesters?
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Source: Managing Manure with Biogas Recovery Systems: Improved Performance at Competitive Costs. EPA AgSTAR
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Your environmental voice since 1970 www.cleanwisconsin.org | Twitter: @cleanwisconsin
Source: EPA AgStar Program
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Europe
Source: Country Report of Member Countries, Istanbul, April 2011. IEA Bioenergy Task 37.
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Map of WI digesters
Mostly on large farms
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Benefits
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GHG emissions
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Methane is 23 times more potent than
Carbon Dioxide
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Nutrient loading
orphosphorus
pollution
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Energy Future
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Why might a farmer
install a biodigester?
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EnergyProduction
Consistent electricity
Avoided propane costs
Revenue
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Bedding
Photo credit: GHD, Inc.
Screen shot of Cornell study on bedding costs
Photo credit: Clear Horizons, LLC
Bedding
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Handling waste
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Economic Development and JOBS
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State Wind Solar Geo
Biomass Total
California 12,800 19,550 3,400 2,480 38,250
Illinois 12,000 7,700 1,360 1,500 22,640
Wisconsin 10,000 1,900 815 1,190 14,060
Michigan 9,750 2,657 600 914 13,900
N. Carolina 4,400 4,423 1,100 1,480 11,400
Wisconsin ranks 8th in renewable component job creation
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Why Aren’t We There Yet?Barriers to Adoption of Small-
Scale Biodigesters in Wisconsin
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Operating Manure Digesters in the US
• Wisconsin leads the nation - NY is 2nd
• 79% of manure digesters are on dairy farms
US EPA, DOA, DOE: AgSTAR Program, “U.S. Anaerobic Digester Status Report.” October 2010.
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Biodigesters in Wisconsin
•Total of 38 farms with operating or proposed digesters
J Schultz, “Wisconsin Farm Biogas Development.” GDS Associates, Inc.
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Dairy Operations in Wisconsin• Thousands of dairy farms represent a
significant potential
Data from: USDA, NASS, WI FO
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Dairy Operations in Wisconsin• Thousands of dairy farms represent a
significant potential
Data from: USDA, NASS, WI FO
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Technology Adoption Curve
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Capital Costs for Dairy Biodigesters
• Cost per head can increase quickly for smaller dairies
• Different technologies may be more economic for different size dairies
US EPA, DOA, DOE: AgSTAR Program, “Anaerobic Digestion Capital Costs for Dairy Farms.” May 2010.
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Specific Reasons Noted Not to Install
• Economic, technical, and regulatory barriers top list
• Increased experience, information may address many issues
• In New York survey, 44% said didn’t know if digesters were a viable option for most dairies- 31% said not viable,- Only 12% said viable
State of New York (2009), Data from: C Gooch and J Pronto, “Innovation Center for U.S. Dairy; Dairy Power Project.” Dairy Power Project Summit, 2009. PRO-DAIRY Program, Cornell University
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Perceived Barriers to Adoption
• Different challenges noted by those who have/ haven’t installed digesters
- Non-cost issues may be under-recognized by those who haven’t installed
State of New York (2009), Data from: C Gooch and J Pronto, “Innovation Center for U.S. Dairy; Dairy Power Project.” Dairy Power Project Summit, 2009. PRO-DAIRY Program, Cornell University
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Market Saturation Curve
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Current Opportunities
• Watershed Adaptive Management Option under the new Phosphorus Rules
• Community Digesters
• Modular Systems
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Policy Opportunities
• Third Party Purchase Power Agreements• Net Metering• Feed-in Tariffs• Enhanced Renewable Energy Standard• Focus on Energy• Interconnection• PACE• Renewable Fuel Standard
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