How can an energy resource with a low net energy compete with those that have a higher net energy?
Answers
Explanation:
The net energy yield of a resource is equal to the amount of energy available from the resource minus the amount of energy needed to make it available.
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Answer:
An important application of second-law analysis is net energy analysis. This type of analysis is applicable only to energy producing industries; its aim is to determine whether the available work yielded to society by the system exceeds the available work input required from the rest of society to build, operate and maintain it, and if so by how much. Figure 3 demonstrates the scheme involved. There have been many arguments as to the most useful way of using this diagram. If one keeps to the “society” orientation outlined above, the most logical usage is that espoused by Odum and Odum (2) in which the parameter energy yield ratio is defined as the ratio of the gross energy yielded to society by the system to the energy required from society to build, operate and maintain it, and the net energy is defined as the gross energy yield minus the energy required to build, operate and maintain the system (not forgetting that we are speaking in second-law terms, so we should use the available work content of these various streams).