Global Cleantech Innovation Index - Methodology

Drawing from 15 indicators, the 2017 Global Cleantech Innovation Index evaluated 40 countries based on an average between inputs to cleantech innovation and outputs of cleantech innovation.

Each of these inputs and outputs are determined by four equally weighted pillars as shown below. The four pillars are built from multiple sources, combined into a total of 15 indicators, drawn from both third party research and CTG’s proprietary data. More information on the underlying sources, and important methodological considerations, can be found in Appendix A and B of the 2017 GCII Report.

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