When reading recently that the ITER experimental nuclear fusion reactor under construction in Cadarache, France, is delayed by at least a decade, the Badger sighed deeply. The delay to this huge endeavour, a collaboration involving 35 nations, inevitably puts back the holy grail of ‘limitless clean energy for the benefit of mankind’ from a tokomak reactor by many decades…again! Why the Badger’s sigh? Because his PhD and subsequent research, many years ago, related to the damage helium ions can cause in potential tokomak first wall materials. At that time, the Joint European Torus (JET) was under construction at Culham in the UK and the ultimate goal of ‘limitless clean energy for the benefit of mankind’ via fusion seemed achievable within the Badger’s lifetime. Realistically, that’s no longer the case, hence the sigh. The holy grail of ‘limitless clean energy‘ from fusion reactors is still far away even though the need for it has never been greater.
ITER, however, is getting a run for its money from private firms within the Fusion Industry Association (FIA). In July 2023, the FIA said that 4 private firms believed they could deliver fusion power into the grid by 2030 and 19 firms believed they could do so by 2035. The Badger’s sceptical. However, given the speedy technological advances of recent decades, these beliefs cannot be completely dismissed if recent technological momentum continues unabated. Wait a minute, you might say if the word ‘nuclear’ always sends uncomfortable shudders down your spine, why do we need power produced by nuclear fusion at all? The answer’s quite simple. As this article points out, and this one reinforces, the world is 86% driven by fossil fuels and energy demand is forecast to rise by 50% from today’s level by 2050. Global energy demand is then expected to triple between 2050 and 2100! To get anywhere near meeting these forecasts, and have a decarbonised world, requires fusion to provide ‘limitless clean energy for the benefit of mankind’. Yes, wind, solar, and tidal power will play their part, but can they service the scale of this demand without blighting every picturesque part of our planet? That’s debatable.
So, here’s the thing. Digital transformation of the world economy continues at pace. The amount of data created, captured, copied, and consumed will be nearly three times as much in 2025 as in 2020. AI, the Internet of Things, cryptocurrency, and the digital automation of everything comes with a dramatic increase in electricity usage which cannot be met by non-nuclear renewables alone. When we use our computers, tablets and smartphones we are contributing to the rising demand for electricity, and we are also thus unconsciously making the case for why we need fusion reactors to provide ‘limitless clean energy for the benefit of mankind’. Let’s hope ITER isn’t the only game in town, because if it is then a digital future may not be quite what we currently envisage.
