Figure 6: Comparison of different PV performance data sources.

(a) Comparison of the electricity generation as estimated by different sources of data: EIA database (http://www.eia.gov/beta/international/browser/), UN database28 and ‘Increasing PR’ and ‘Low PR’ scenarios used in this study. (b) Comparison of the cumulative installed capacity from different data sources: EIA database, UN database and the data used in this study. (c) Comparison of the calculated global average electricity yield by using the different data sources or scenarios shown in (a,b).