Proceedings of the 15th Annual NHA Hydrogen Conference (April 26-29, 2004) Many past studies of the 'Hydrogen Economy' have presented a steady-state portrait of a mature pathway from hydrogen production and distribution through utilization. One of the key problems surrounding the hydrogen...

Many past studies of the 'Hydrogen Economy' have presented a steady-state portrait of a mature pathway from hydrogen production and distribution through utilization. One of the key problems surrounding the hydrogen economy is the large cost of building the infrastructure. The desire to reduce...

This report assesses technology requirements for reducing greenhouse gas (GHG) emissions in California to 80% below 1990 levels by 2050 as required by Executive Order S-3-05 (2005). Details of this analysis, assumptions and data are to be found in forthcoming reports, including a detailed...

The CA-TIMES optimization model of the California Energy System (v1.5) is used to understand how California can meet the 2050 targets for greenhouse gas (GHG) emissions (80% below 1990 levels). This model represents energy supply and demand sectors in California and simulates the technology and...

Electricity is unique among the alternative fuels in a low carbon fuel standard (LCFS) policy, in that demand from vehicles is the major barrier to its usage, not supply. This paper presents a policy discussion and policy recommendations on a number of topics related to the regulation and...

Presented at the National Hydrogen Association Annual Hydrogen Conference (NHA 2005), Washington, DC, March 29 - April 1, 2005 Understanding the evolution of a hydrogen fuel delivery infrastructure depends on the spatial characteristics of the hydrogen demand. We have developed a GIS-based...

Hydrogen offers potential advantages as a future energy carrier, with respect to reduced emissions of greenhouse gases and air pollutants, and enhanced energy supply security. However, the current lack of an extensive hydrogen (H2) infrastructure is often cited as a serious barrier to the...

The development of a hydrogen infrastructure has been identified as a key barrier to implementing hydrogen as for a future transportation fuel. Several recent studies of hydrogen infrastructure have assessed near-term and long-term alternatives for hydrogen supply [1-2]. In this paper, we...

A future hydrogen economy would interact with and influence the electricity grid in numerous ways. This paper presents several concepts for understanding a hydrogen economy in the context of the co-evolution with the electricity sector and lays out some of the opportunities and challenges. H2...

Hydrogen delivery is a critical contributor to the cost, energy use and emissions associated with hydrogen pathways involving central plant production. The choice of the lowest cost delivery mode (compressed gas trucks, cryogenic liquid trucks or gas pipelines) will depend upon specific...