This paper uses a lifecycle approach to analyze potential air quality impacts of hydrogen and gasoline use in light duty vehicles. The analysis is conducted for scenarios in 2005 and 2025 in Sacramento, California for CO, NOx, VOC, and PM10. Three natural gas-based hydrogen supply pathways are...

Reliability has always been a concern in the energy sector, but concerns are escalating as energy demand increases and the political stability of many energy supply regions becomes more questionable. But how does one define and measure reliability? We introduce a method to assess reliability in...

Home refueling helped address the fuel availability issue for gasoline vehicles a century ago; it may still have important implications for alternative fuel vehicles today. The positive consumer response and lessons learned about home refueling for compressed natural gas vehicles, battery...

Ambient concentrations of pollutants are correlated with emissions, but the contribution to ambient air quality of on-road mobile sources is not necessarily equal to their contribution to regional emissions. This is true for several reasons such as the distribution of other pollution sources and...

Proceeding of the National Hydrogen Association (NHA) Annual Conference, Long Beach, California, March 2006.

The method of force field analysis is used to examine the future technological and market evolution of electric two-wheelers (E2W) in China. The authors identify key forces driving and resisting future E2W market growth, root causes behind these forces, and important insights about the...

This report describes five alternative scenarios for future energy demands in California, developed at UC Davis as part of the Advanced Energy Pathways (AEP) project. The Advanced Energy Pathways is a project of the California Energy Commission’s (CEC) Public Interest Energy Research...

This report covers the development of a baseline scenario for energy demand in California for a projection period to 2050 as part of the Advanced Energy Pathways (AEP) project. The baseline scenario will provide a useful point of comparison for the impacts of choices or changes in policy that...

This paper explores the implications of vehicle recharging on the current electricity grid in California and compares well-to-wheel vehicle emissions for various vehicle and fuel platforms at different times of day and during different seasons. An hourly electricity dispatch model that accounts...