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Biogas Energy Potential in Florida

Biogas Energy Potential in Florida. Ann C. Wilkie Soil and Water Science Department University of Florida – IFAS acwilkie@ufl.edu Renewable Energy Workshop Florida Public Service Commission January 19, 2007. Biogas Cycle. Solar energy. Photosynthesis. Animal husbandry Crop harvesting

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Biogas Energy Potential in Florida

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  1. Biogas Energy Potentialin Florida Ann C. Wilkie Soil and Water Science Department University of Florida – IFAS acwilkie@ufl.edu Renewable Energy Workshop Florida Public Service Commission January 19, 2007

  2. Biogas Cycle Solar energy Photosynthesis Animal husbandry Crop harvesting Industrial processing Human consumption CO2 H2O Biofertilizer Energy crops Biogas Organic wastes Electrical and/or thermal energy Anaerobic digestion

  3. ANAEROBIC DIGESTION The microbial degradation of organic compounds, in the absence of oxygen, to biogas – a mixture of: • Methane (50 to 70%) • CO2 (30 to 50%) • trace amounts of H2, NH3, and H2S.

  4. LIQUEFACTION PHASE GASIFICATION PHASE COMPLEX ORGANIC MATTER SIMPLE ORGANICS ACETATE H2 / CO2 ACIDOGENS METHANOGENS METHANE and CARBON DIOXIDE LOW ODOR EFFLUENT

  5. FEEDSTOCKS • Animal manures • Industrial wastewaters • Municipal wastewaters • Municipal solid wastes • Energy crops / crop residues

  6. BENEFITS OF ANAEROBIC DIGESTION • Renewable energy • BOD/COD reduction • Odor reduction • Pathogen reduction • Nutrient conservation • Greenhouse gas reduction

  7. BIOGAS – A BIOENERGY VECTOR • Direct Utilization (Heat / Steam) • Conversion to Bioelectricity (CHP) • Natural Gas Pipeline • Vehicular fuel • Fuel Cells • Methanol • Biodiesel

  8. Biogas as fuel

  9. Water heater at UF-IFAS Dairy powered by manure biogas

  10. Natural Gas Bus - Brisbane

  11. BIOGAS PLANT CORE TECHNOLOGY

  12. DISTILLATION ETHANOL FERMENTATION BIOGAS STILLAGE ANAEROBIC DIGESTION

  13. Biomass Energy Crop

  14. SUNLIGHT Green Grass to Green Gas WATER CO2 CO2 WATER Energy Crops Biogas Plant Methane Biofertilizer

  15. Florida Biogas Potential from Selected Sources: Annual Estimates

  16. Biogas is a sustainableenergy solution that is: • Renewable • Carbon dioxide neutral • Locally based thereby protecting the environment, creating jobs and strengthening local economies.

  17. Biogas power provides … • Energy independence • Renewable natural gas • Energy reliability • Based on locally based feedstocks

  18. IMPLEMENTATION ISSUES • Net metering • Surplus sales agreement • Standby charge • Rate schedule • Interconnection

  19. Biogas Energy Potentialin Florida Ann C. Wilkie Soil and Water Science Department University of Florida – IFAS acwilkie@ufl.edu Renewable Energy Workshop Florida Public Service Commission January 19, 2007

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