Fig. 4
From: Predictive mapping of the global power system using open data

Regional electrical infrastructure proximity and investment value, by country and income level. (a) Proportion of population within 10 km of distribution lines by HDI; (b) Population within 10 km in low-access countries compared with electricity access rate; (c) Infrastructure investment per capita by HDI; (d) Infrastructure investment in low-access countries compared with electricity access rate. See Table 1 for data sources with additional data collated for HDI: https://gateway.euro.who.int/en/indicators/hfa_42-0500-undp-human-development-index-hdi.