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

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  • Endo, E.
  • Tamura, Y.

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.

Suggested Citation

  • Endo, E. & Tamura, Y., 1998. "Correlation between R&D expenditures and conversion efficiency improvement in R&D on solar cells," Renewable Energy, Elsevier, vol. 15(1), pages 523-526.
    • Handle: RePEc:eee:renene:v:15:y:1998:i:1:p:523-526
    DOI: 10.1016/S0960-1481(98)00217-1
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    Cited by:

    1. Park, Noeon & Lee, Ki Jong & Lee, Kyong Jae & Lee, Yun Jie & Lee, Kyoungmi & Lee, Sang Hyon, 2013. "In-depth analysis on R&D investment and strategy on PV in South Korea," Energy Policy, Elsevier, vol. 54(C), pages 391-396.

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