Securing A Sustainable Future.

Transcription

1 Securing A Sustainable Future 1

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3 Outline Benefits of Anaerobic Digestion Anaerobic Digestion Process Sources of Feedstock Energy Content of Feedstocks Challenges to Development

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8 Outline Benefits of Anaerobic Digestion Anaerobic Digestion Process Sources of Feedstock Energy Content of Feedstocks Challenges to Development

9 Benefits of Anaerobic Digestion 1. Produces clean energy and heat 2. Captures CH 4 (20x more potent GHG than CO 2 ) 3. Reduces waste to landfills 4. Replaces chemical fertilizer

10 Outline Benefits of Anaerobic Digestion Anaerobic Digestion Process Sources of Feedstock Energy Content of Feedstocks Challenges to Development

11 What is anaerobic digestion? Source: "The AD Cycle." The Anaerobic Digestion & Biogas Association. Web. 01 Apr

12 Slurry Store Digester CHP Container Biomass Equalization Equip Container

13 Anaerobic Digester Flow Diagram Inputs On-Farm Manure AD System Source Separated Organics Outputs Electricity Heat Liquid Effluent Solid Effluent Marketable Products Net Metering Credits RECS Useful Heat Liquid Fertilizer Bedding

14 Outline Benefits of Anaerobic Digestion Anaerobic Digestion Process Sources of Feedstock Energy Content of Feedstocks Challenges to Development

15 One out of three food calories is wasted 29% of America s food supply was lost from human consumption Estimated total value at retail and consumer levels was $165.6 billion 273 pounds of food per person Disposal costs add one billion dollars in local taxes annually Coming State bans on organics in landfills. MA is the first Food waste by retail value ($165.6B total) Source: J. Buzby, and J. Hyman. Total and per capita value of food loss in the United States, Food Policy, 37(2012):

16 Best Uses of Food Waste Without energy recovery, energy in food waste is wasted! Greenhouse gases produced by 100 tons per day of SSO: 48,000 tons per year CO2 eq in a landfill 700 tons per year CO2 eq in a composting operation - 5,400 tons per year CO2 eq GHGs in an anaerobic digester by offsetting fossil fuel energy and heat AD reduces odor and vector concerns by using sealed tanks US EPA epa.gov/foodrecovery Conestoga-Rovers & Associates, Waterloo, Ontari lcacenter.org/lcaxii/final-presentations/605.pdf 16

17 Sources of Feedstock Source Separated Organics in Massachusetts 1,050,000 TPY of food waste generated 750 food processors Dairy Manure in Massachusetts 100,000 TPY of manure generated 2,100 dairy cows on 350 farms Equivalent to combined 32MW of power USDA: National Agricultural Statistics Service

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19 Outline Benefits of Anaerobic Digestion Anaerobic Digestion Process Sources of Feedstock Energy Content of Feedstocks Challenges to Development

20 Feedstock sources Gallons per VS COD POWER Avg Avg (%) (mg/l) kw months Salad Dressing 33,000 4% 76, Cream 138,000 10% 146, Hot dog 4,000 5% 105,000 2 Meatball 80,000 20% 228, Hummus 54,000 25% 150, Biodiesel byproduct 22,000 36% 112, FOG 54,000 16% 100, Grocery 13,000 3% 45,000 4 Manure 186,000 10% 60, ,000 14% 118,

21 SSO Slurry via Truck Feedstock Optimization Feedstock Holding Tanks High COD SSO Med. COD SSO Low COD SSO Recipe Mgmt Biogas Prod. Genset Grid Manure Plant Parastic Load Minimize thru design, efficiency Plant Heat Use -- Bioreactor, sheds/office, etc Discounted electric energy to farm Farm Excess heat to farm KEY: Waste Renewable Power Heat Other Beneficial Heat Use COD = Chemical Oxygen Demand SSO = Source Separated Organics 21

22 Real Farm Power 22

23 Feedstock specification 23

24 Grocery Pilot Whole Foods innovating their food-waste diversion program to include digestion Emerson (Insinkerator) Grind2Energy Technology partner Installed in Andover and Cambridge Stores Working on additional installations 24

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26 Outline Benefits of Anaerobic Digestion Anaerobic Digestion Process Sources of Feedstock Energy Content of Feedstocks Challenges to Development

27 Challenges to Development Permitting Complex Permitting Structure Department of Agriculture Commercial Fertilizer License Agricultural Preservation Board Approval Department of Environmental Protection Determination of Need Site Assignment Beneficial Use Determination for Bedding Air Quality Permit Local Building Permit

28 Challenges to Development Financing Funding two $3M projects 20 year financial projections for potential investors Bank Loans Private Equity Financing State and Federal Grants

29 Challenges to Development Contracting Long term contracts on all revenues and expenses Lease Feedstock supply agreements Net metering offtake agreements REC purchase agreements Equipment Purchase/Performance Agreements Operations and Maintenance Agreements

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31 THANK YOU CARLY FILLER PROJECT MANAGER, VANGUARD RENEWABLES PHONE: (203)