Evolution of Production and the Efficient Location of Renewable Energies. The Case of China

The twenty-first century has been a scenario for explosive investment in renewables. This paper examines such investment as well as the policies that support it. China represents a unique case in this regard due to its fast development. Whereas the issue of securing energy supply is becoming increasingly important over time, the energy return ratios, such as EROI, are important to evaluate the efficiency of energy production. A novel methodology is presented to identify the most convenient location to increase efficiency and energy return for renewables. The methodology also assesses the effects of renewables policies at different scales.