* To establish feasibility, it is necessary to include some items in the energy invested term that are normally not thought of as investments. For example, the cost of sequestering such carbon dioxide as will be produced by the energy technology under investigation should be added to the energy invested term because feasibility requires that our society be sustainable (until astronomical events intervene). In this thought experiment, the support of an alternative energy technology would be the sole concern of every citizen.

Thursday, June 27, 2013

A word to readers of the Wikipedia  

I added a link to this blog on the Energy Returned on Energy Invested page of the Wikipedia today.  It's too bad that the essential characteristics of ERoEI* (pronounced ER over EI star) are not gathered together on one page for the convenience of the reader.  I expect to remedy this defect very soon; but, I ask the reader to bear with me temporarily and read the individual posts until the concept is clear.  I believe I can handle all of the objections to ERoEI analysis one normally hears by enunciating three or four fundamental principles each of which will cover a multitude of sins.  The Principle of Substitution might be one such.  For example, if the energy product under analysis (Product A) cannot be delivered to a particular place at a given time, the total energy costs of supplying a substitute energy product must be added to the energy costs for Product A.  Many similar situations can be covered by substitution.

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