The report gives an overview of the status, trends and developments of renewable energy in cities, using the most up-todate information and data available. The REC’s neutral, fact-based approach documents in detail the annual developments in policies, markets, investments and citizen action, with a particular focus on renewables in public, residential and commercial buildings as well as public and private urban transport. The REC complements REN21’s Renewables Global Status Report, which covers renewable energy market, industry and policy trends. Jointly, these reports contribute to making renewable energy visible in the global debate, drawing decision makers’ attention to renewables and continuously providing better data and tracking to inform energy decisions worldwide.
REC 2021 is the result of a collaborative effort, building on REN21’s unique data and reporting culture (p see Data Collection and Validation section), with more than 330 data contributors and peer reviewers and over 30 individual interviews from around the world.