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Digester Biogas Systems in the San Joaquin Valley

Digester Biogas Systems in the San Joaquin Valley. For the SJVCEO Farming Clean Energy Conference November 5, 2008 Dave Warner Director of Permit Services San Joaquin Valley Air Pollution Control District. San Joaquin Valley Hot, sunny summers VOC, NOx Ozone Problem Cool, foggy winters

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Digester Biogas Systems in the San Joaquin Valley

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  1. Digester Biogas Systemsin the San Joaquin Valley For the SJVCEO Farming Clean Energy Conference November 5, 2008 Dave Warner Director of Permit Services San Joaquin Valley Air Pollution Control District

  2. San Joaquin Valley • Hot, sunny summers • VOC, NOx • Ozone Problem • Cool, foggy winters • Particulate • problem

  3. Federal Clean Air Act • Requires District to achieve clean air, or • Huge fees on local industry • Lose federal highway funds • Feds take over local air program • Limited Authority – District only controls stationary sources of emissions – state and feds retain right to control biggest part of our problem – mobile sources • 2007 ozone plan • Maps out attack on ozone • Every feasible VOC and NOx reduction • Achieves clean air in 2023 only with reliance on “black box” of unknown technology • “Extreme” non-attainment with federal ozone standards

  4. General Permitting Requirements • Permits required for over 30,000 units in the San Joaquin Valley (if emissions > 2 lbs/day) • From refineries and power plants down to little facilities like gas stations and dry cleaners • Most stringent regulations in the nation • Rule 2201, “New and Modified Source Review.” Requirements to get an “Authority to Construct” permit: • Best Available Control Technology (BACT) • Emissions offsetting • Notify public of intent to issue permit

  5. Biogas Systems in the SJV • Food Processing Digester Gas • fired in turbine w/ selective catalytic reduction • Wastewater Treatment Plant Digester Gas • Burned in internal combustion engines • new trend: fuel cells • Dairy Digester Gas • Burned in internal combustion engines, producing electrical power • Injected into natural gas pipelines

  6. Air Friendly Technologies • Fuel Cells • Near-zero emissions, super efficient • Proven technology, but costly • Large incentives for installation (but are incentives limited to on-site generation?) • Gas pipeline injection • Avoids NOx emissions associated with combustion processes • Limited availability (must be close to pipeline) • New installations not yet in full operation

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