Everything Energy

Since the mid-20th century, scientists and engineers around the world have been working to harness the potential of fusion energy. Driven by the knowledge that success could revolutionise the energy system, they have pursued fusion’s tantalising potential to provide abundant around-the-clock electricity with minimal fuel inputs, no direct emissions and very little radioactive waste. Recently, momentum behind the sector has been building. Government-led research programmes have achieved a series of technological milestones, and investment from the private sector has surged. Together, these developments have supported growing interest in the sector – although significant challenges still need to be overcome to make fusion power plants technically and economically feasible. In this episode, we look at where fusion energy stands today and where it could be headed, based on interviews with four experts from across the industry: Alain Bécoulet, ITER’s Chief Scientist; Simon Bennett, an IEA analyst focused on energy innovation; Jennifer Ganten, the Chief Global Affairs Officer at Commonwealth Fusion Systems; and David Maisonnier, Chair of the IEA’s Fusion Power Coordinating Committee. They explain how fusion works, discuss the sector’s evolution, and outline the remaining questions that need to be answered before a power plant running on fusion energy is connected to the grid.

For many decades, global energy demand was mainly concentrated in wealthy, industrialised economies such as the United States, Europe and Japan. That has changed in the 21st century as China’s rapid economic growth moved the centre of gravity eastward, with the country driving more than half of global oil and gas demand growth and 60% of electricity demand growth since 2010. Now, the landscape is shifting again. Emerging economies – led by India and Southeast Asia, and joined by countries in the Middle East, Latin America and Africa – are poised to take the baton from China. This brings new opportunities and challenges that will affect energy markets for years to come. In this episode, Ali Saffar, Head of the IEA’s Europe, Middle East, Africa and Latin America Division, and IEA energy analyst Siddharth Singh explore how energy demand has evolved over the past half-century and share insights on what lies ahead, based on new analysis in recent IEA reports.

In every scenario in the IEA’s flagship World Energy Outlook 2025, solar power is projected to grow rapidly in the coming decades. But what is driving this growth? And what could slow it down or speed it up? In this episode, Brent Wanner, Head of the IEA’s Power Supply Unit, and Anthony Vautrin, an energy modeller, unpack the new report’s key findings on solar. They discuss the trends that have underpinned solar’s rapid ascent, its potential to meet rising electricity demand around the world, and some of the key factors that are likely to affect its future growth.