Ballard Power -world leader zero-emission PEM fuel cells Message Board

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Technology Stocks : Ballard Power -world leader zero-emission PEM fuel cells

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To: Dr. Ezzat G. Bakhoum who wrote (2720)	6/8/1998 5:10:00 PM
From: Cascade Berry	Read Replies (3) of 5827

I wonder if people on this list would specify whether they are talking about the raw FIRST LAW Efficiency of conversion of the feedstock through a fuel cell into energy, or SECOND Law Efficiency of the whole "energy system" including the fuel cell and the PRODUCTION and TRANSMISSION of the various feedstocks to the fuel cell. Would the Second Law efficiency be much higher if the feedstock were produced on site (eg. photovoltaic hydrogen at low temperatures)?. We need to look at both the First Law efficiency (what Sid has ONLY been referring to thus far) and the First and Second Law efficiencies of the production of the feedstock and the transmission of the feedstock to the fuel cell, to gauge the ramifications for long term energy supply for society of this or that energy option. Decentralization of feedstock production to lower temperature sites which are "closer" to the fuel cell means as much as the First Law Efficiency of the fuel cell in comparison to a gasoline engine, for example. What about all the wasted energy to produce and supply gasoline? This might not be required with hydrogen. The Second Law efficiency is what makes the particular energy option desirable, because energy options with high Second Law efficiencies are typically decentralized, and have far lower transmission losses. This translate into ecological friendliness. (I suppose this also an argument for endless utility deregulation - we are going in the right direction...witness the endless long term bear market in oil). This is all very deflationary...can you say 2% long bonds in 2050?).

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