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A functional approach for studying technological progress: Extension to energy technology

This paper extends a broad functional category approach for the study of technological capability progress recently developed and applied to information technology to a second key case—that of energy based technologies. The approach is applied to the same three functional operations—storage, transpo...

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Published in:Technological forecasting & social change 2008-07, Vol.75 (6), p.735-758
Main Authors: Koh, Heebyung, Magee, Christopher L.
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Language:English
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description This paper extends a broad functional category approach for the study of technological capability progress recently developed and applied to information technology to a second key case—that of energy based technologies. The approach is applied to the same three functional operations—storage, transportation and transformation—that were used for information technology by first building a 100 plus year database for each of the three energy-based functional categories. In agreement with the results for information technology in the first paper, the energy technology results indicate that the functional approach offers a stable methodology for assessing longer time technological progress trends. Moreover, similar to what was found with information technology in the first study, the functional capability for energy technology shows continual—if not continuous—improvement that is best quantitatively described as exponential with respect to time. The absence of capability discontinuities—even with large technology displacement—and the lack of clear saturation effects are found with energy as it was with information. However, some key differences between energy and information technology are seen and these include: ▪ Lower rates of progress for energy technology over the entire period: 19–37% annually for Information Technology and 3–13% for Energy Technology. ▪ Substantial variability of progress rates is found within given functional categories for energy compared to relatively small variation within any one category for information technology. The strongest variation is found among capability progress among different energy types. ▪ More challenging data recovery and metric definition for energy as compared to information technology. These findings are interpreted in terms of fundamental differences between energy and information including the losses and efficiency constraints on energy. We apply Whitney's insight that these fundamental differences lead to naturally modular information technology artifacts. The higher progress rates of information-based as opposed to energy-based technologies follows since decomposable systems can progress more rapidly due to the greater ease of independent as opposed to simultaneous development. In addition, the broad implications of our findings to studies of the relationships between technical and social change are briefly discussed.
doi_str_mv 10.1016/j.techfore.2007.05.007
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source ScienceDirect Freedom Collection; Sociological Abstracts
subjects Comparative analysis
Energy
Energy Development
Energy technology
Function
Functional tradeoff metrics
Information technology
Measurement
Social Change
Studies
Technological planning
Technological Progress
Trends
title A functional approach for studying technological progress: Extension to energy technology
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