Figures & data
Figure 1. Patent applications for wind energy technologies (WIPO Citation2010).
Figure 2. Countries’ shares of wind energy patents (WIPO Citation2011).
Figure 3. Papers published on wind energy in the English-language academic literature, based on results from searches of the SCOPUS database for ‘wind energy’, ‘wind turbine’ and ‘wind power’.
Figure 4. Public R&D spending on wind in Germany, the USA and UK. Data for China is not publicly available (IEA Citation2011).
Figure 5. Average size of turbines installed in that year in the UK, the USA, Germany and China. Data compiled from IEA Wind Annual Reports, Jacobsson and Johnson Citation(2000) and Li et al. Citation(2010).
Figure 6. ‘Wind Turbine’ as a proportion of all 2-word phrases in all books published in English.
Figure 7. Global installed capacity of wind, in MW (GWEC Citation2011).
Figure 8. Wind installed capacity in the USA, Germany, China and UK (GWEC Citation2011).
Figure 9. Crude estimates of total investment in wind energy installations in China, Germany, the UK and the US, 1984–2007. Calculated from wind capital cost data and deployment statistics. Note that the years since 2007 have seen strong increases in investment, particularly in China and the USA.
