IRENA Report on Renewable Capacity Statistics 2019 By Ayush Verma/ Updated On Fri, May 31st, 2019 The International Renewable Energy Agency (IRENA) produces comprehensive renewable energy statistics on a range of topics. This publication presents renewable power generation capacity statistics in trilingual tables for the last decade (2009 – 2018). Renewable power generation capacity is measured as the maximum net generating capacity of power plants and other installations that use renewable energy sources to produce electricity. For most countries and technologies, the data reflects the capacity installed and connected at the end of the calendar year. Data has been obtained from a variety of sources, including IRENA’s questionnaire, official national statistics, industry association reports, other reports and news articles.