Correlation between R&D expenditures and conversion efficiency improvement in R&D on solar cells

E. Endo and Y. Tamura

Renewable Energy, 1998, vol. 15, issue 1, 523-526

Abstract: The objective of this paper is to show the main motive force of technological progress on solar cells by analyzing correlation between R&D expenditures and conversion efficiency improvement. In the analysis, instead of R&D expenditures, expected conversion efficiency improvement, which is defined as product of cost efficiency from the viewpoint of conversion efficiency improvement and actual R&D expenditures, is used. Based on results of the analysis, expected and actual conversion efficiency improvement show good correlation. This means R&D expenditures are the main motive force of technological progress on solar cells and they are appropriate variables for modeling technological progress of solar cells.

Keywords: solar cell; R&D expenditures; conversion efficiency improvement; correlation; technological progress model; cost efficiency (search for similar items in EconPapers)
Date: 1998
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:15:y:1998:i:1:p:523-526

DOI: 10.1016/S0960-1481(98)00217-1

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