If new energy sources offer cheap, plentiful power to everyone, how will the planet cope? FutureProofing examines a new method of power generation promising clean, limitless power for everyone. Can it work, what are the consequences, and is there a viable alternative? Fusion has long-promised cheap, clean and limitless power, but over half a century of effort this technology has still not delivered an operational power plant. Now hopes are high that a vast project in the south of France will finally crack the problems and deliver a working model that can be replicated around the world. FutureProofing presenters Timandra Harkness and Leo Johnson travel to Provence to find out what the prospects are for a scheme costing upwards of £10billion which could transform the energy supply for us all and with it global geo-politics and the environment for centuries to come. The programme explores what viable alternatives there could be to generate power at the same scale for billions of people across the world, and whether such an alternative is a better route to achieving the goal of cheap, plentiful and clean energy for the future. Producer: Jonathan Brunert.