IRENA’s electricity capacity database contains information about the electricity generating capacity installed at the year-end, measured in megawatt (MW). The dataset covers all countries and areas from the year 2000 onwards. The dataset also records whether the capacity is on-grid or off-grid and is split into 36 different renewable energy types that can be aggregated into the six main sources of renewable energy.

For the population part of this indicator, IRENA uses population data from the United Nations World Population Prospects. The population data reflects the residents in a country or area regardless of legal status or citizenship. The values are midyear estimates.

The United Nations Department of Economic and Social Affairs published information about their its methodology on the following link: https://population.un.org/wpp/Methodology/