As we move away from fossil fuels and toward clean energy solutions, the complexity of the global energy system has increased. With his new book published by Cambridge University Press, Global Energy Fundamentals, Simone Tagliapietra cuts through this complexity with a multidisciplinary perspective of the system, which encompasses economics, geopolitics, and basic technology. In this episode of The Sound of Economics Guntram Wolff, director of Bruegel, discusses with the author the current status and future prospects of the global energy system.