* 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.

Friday, November 30, 2012

Why We Need the Concept of Emergy


The input to the production facility that produces solar cells and their ancillary equipment consists of energy corrected for entropy and material streams and human effort.  The embodied energy or emergy of the material imputs must be added to the Energy Invested term.  Thus, a blog on ERoEI must discuss the concept of emergy.

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