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Part1 jt gts rng session 030511
Part1 jt gts rng session 030511
Part1 jt gts rng session 030511
Part1 jt gts rng session 030511
Part1 jt gts rng session 030511
Part1 jt gts rng session 030511
Part1 jt gts rng session 030511
Part1 jt gts rng session 030511
Part1 jt gts rng session 030511
Part1 jt gts rng session 030511
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Part1 jt gts rng session 030511

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  • 1. Renewable Natural Gas (RNG) <br />RNG as a Transportation Fuel<br />What is it?<br />Where does it come from?<br />Costs<br />Benefits<br />
  • 2. CALSTART: A Strategic Broker for Advanced Transportation <br />2010<br />130+ Worldwide Participant Network<br />3 Offices in US<br />Four focus areas:<br />Tech Commercialization<br /> Fleet, Port Consulting<br /> Industry Services<br /> Policy Development<br />National and International in Project Areas<br />
  • 3. Methane<br />Natural gas<br />RNG<br />Natural Gas & RNG<br />Renewable Fuel<br />Fossil Fuel<br />Less GHG Emissionsthan Petroleum<br />Net zero or negative GHG Emissions<br />
  • 4. Renewable Natural Gas<br />RNG is renewable<br />Net zero or even negative GHG emissions<br />Climate change will become the predominant driver going forward<br />NG vehicle market growing in CA (20% transit are NGV)<br />NG is 30% cheaper than gasoline<br />RNG<br />Residential<br />Industrial<br />NG<br />Filling stations<br />Renaissance in interest in biomethane in CA<br />
  • 5. RNG, Biomethane & Biogas<br />Biogas is a naturally occurring byproduct of decomposing organic material<br />Sources: municipal solid waste, animal waste agricultural waste, etc…<br />RNG or Biomethane is cleaned-up biogas after removal of CO2, H2O, H2S, and other<br />RNG is identical in composition to natural gas – mostly methane (CH4)<br />
  • 6. Waste as Source of Energy<br />US largest producer of waste in the world<br />Huge possibilities in recycling and using as energy feedstock<br />CA generates ~ 88 million tons of waste; 60 million tons of organic waste = 2 GW potential energy<br />CA has 2,000 dairy farms = 2GW potential energy<br /><ul><li> Agricultural waste
  • 7. Animal byproducts
  • 8. Wood waste
  • 9. Rice and wheat straw
  • 10. MSW
  • 11. Waste water</li></li></ul><li>Process flow for AD creation of RNG<br />
  • 12. Biogas & RNG: Economic Assessment<br />RNG (Biomethane) is a renewable and low-carbon transportation fuel<br />What are the costs?<br />Based on actual production cost data from agricultural farm waste<br />Biogas production via digestion<br />Upgrading biogas to biomethane<br />Total cost of biomethane produced can be competitive with conventional natural gas<br />$9-11/MMBTU for small facility<br />$6-8/MMBTU for medium facility<br />vs $5-8/MMBTU market price for NG (variable - lower right now - $4)<br />Methane<br />Off-the-Shelf Equipment is Used to Upgrade Digester Gas to Transportation Quality Biomethane<br />
  • 13. Biomethane is the Lowest Carbon Fuel Tested by CARB<br />Biomethane has the lowest carbon content of any fuel analyzed by CARB:<br />Fuel Pathway Impact (gCO2e/MJ)<br />Landfill gas to renewable CNG 11.26<br />Biogas to renewable CNG 13.45<br />Landfill gas to renewable LNG 15.56<br />Biogas to renewable LNG 17.78<br />Electricity (best case renewable mix) 34.90<br />Hydrogen (best case scenario) 33.09<br />Ethanol (Corn - best case) 46.60*<br />Ethanol (Brazilian sugarcane) 27.40*<br />Ethanol (Forest waste – best case) 21.40<br />Gasoline (CA reformulated) 96.09<br />Diesel (ULSD) 94.71<br />Fossil (conventional) Natural Gas 68.00<br />*Does not include indirect land use change emissions for ethanol<br />Biomethane<br /><ul><li>Greater than 80% carbon reduction compared with conventional fuels
  • 14. Less than half the carbon emissions of electricity and H2
  • 15. Lower carbon emissions than cellulosic ethanol</li></ul>Other Alt. Fuels<br />Fossil Fuels<br />
  • 16. Natural Gas is a Proven and Reliable Alternative Fuel<br />More than 6,000 buses are powered by natural gas in the United States – most of which are in Southern California<br />CA has an impressive network of >150 public NG refueling stations that make driving any where in the state feasible<br />RNG could easily supply all CA NG vehicles:<br />Nearly 15 billion ft3 potential<br />About 1.4 billion GGEs<br />

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