CALSTART President and CEO, John Boesel, presentation at California Energy Commission on Biomethane and AB 118 at a CEC biofuel workshop September 9, 2009. www.calstart.org

1. Taking Advantage of the Lowest Carbon Fuel: Building the CA Biomethane Industry Advanced Transportation Technologies John Boesel President and CEO AB 118 Biofuels Workshop September 15, 2009 Clean Transportation Solutions SM

2. Natural Gas = Biogas But with Some Important Exceptions Less GHG Emissions Net zero or negative GHG Emissions Both Good for Air Quality! Fossil Fuel Renewable Fuel Methane Natural gas Biogas

3. Green-Gas Principle – “Greening the Gas Pipeline” Biogas Natural gas Residential housing Industries Filling stations

4. Swedish Biomethane Vehicles

5. Linkoping – The Bakersfield of Biomethane Digester where raw products breaks down and produces methane Off-the-Shelf Equipment is Used to Upgrade Digester Gas to Transportation Quality Biomethane

6. Methane Gas Vehicles in Sweden 37% growth annually! Trucks Buses Cars Total

7. Methane Fuelling Stations in Sweden 25 % growth annually 25% growth annually! Bus Public Total

8. Sales of Methane Gas for Vehicles in Sweden 21 % growth annually 55 % biogas Biogas Natural gas Total

10. 1,400,000 km natural gas grid in 32 countries Biomethane can be distributed in the gas grid to the consumers A wide range of biomass feedstock & high efficient production both from digestion and gasification 600 000 CNG vehicles already in traffic 2000 existing fueling stations for CNG and CBG Liquified biomethane will play a important role By 2030 Biomethane Could Replace 25-35 % of Fossil Fuels Used for Road Transport in Europe

12. Cost of Biomethane Production in Sweden Sources: Swedish Gas Centre, BioMil Process ~ € / kWh ~ € / l petrol eq. Sewage sludge 0.03 – 0.04 0.23 – 0.36 Organic waste 0.03 – 0.05 0.23 – 0.42 Energy crop gas (38 MW) 0.07 – 0.08 0.53 – 0.67 Synt. natural gas (100 MW) 0.04 0.36

20. Clean Transportation Solutions SM www.calstart.org Advanced Transportation Technologies SM