Millions of residents in some of the fastest growing cities in the world don’t have access to clean, reliable energy, and the challenge of reaching them is not getting easier.

Renewable energy (RE) is growing worldwide, with a six-fold increase in non-hydro renewables over the last decade from 85 to 657 gigawatts (GW). This report reviews the key trends that explain growth in RE, and highlights how they are challenging decision making in countries such as Brazil, China, India, and Kyrgyzstan.