Solar power has been getting cheaper for 50 years, and according to a video from The Electric Viking, the pace is still accelerating rather than leveling off. The episode summarizes the argument of renewable energy analyst Ray Wills, who describes the shift to solar as the fastest change in electricity generation in human history. The headline figure is that solar module prices have fallen by roughly 10,000-fold over five decades as global installed capacity grew. The mechanism behind that is what the video calls the learning curve: every time the world's cumulative solar capacity doubles, prices drop by about 20 percent. The claim is that this pattern has held for decades and shows no sign of breaking.
The learning curve is not unique to this video. Falling costs alongside rising cumulative production is a well-documented pattern in solar manufacturing, which is part of why the trend has been so durable. Where the video makes a sharper, more contestable argument is about forecasting. It claims that major outlooks, including Bloomberg's BNEF and the International Energy Agency, have repeatedly built a slowdown into their projections that never arrives, and that every prediction of a solar plateau since 2015 has been wrong. The video offers reasons for the alleged misses: exponential growth is hard for people to picture, the models were built around a world where energy meant digging fuel out of the ground, and some institutions have not caught up to how far Chinese manufacturing has driven down panel costs. That framing is Ray Wills's view as presented by the channel, not a settled fact, and these agencies would dispute it. Both organizations do publish annual energy outlooks, and their projections have at times been more conservative than actual deployment, but readers should treat the stronger claims here as one analyst's interpretation rather than consensus.
The video lays out the argument in three parts. The first is cost, covered above. The second is raw speed: measured from a common starting point of 100 terawatt-hours of annual generation, the video says solar and wind have scaled faster than coal, gas, hydro or nuclear ever did. Nuclear is given some credit for moving quickly in the 1970s and 1980s before stalling, while batteries, it claims, are now climbing even faster than solar from their own starting line. Batteries are framed as the missing piece, the thing that turns solar from a daytime resource into round-the-clock power, with Australia's most advanced grids cited as already seeing batteries displace gas at peak times. The third part is the projection: a model the video attributes to Wills's firm has solar, wind and batteries reaching around 80 percent of global electricity by 2035, with coal, oil and gas pushed to the margins rather than eliminated. The video also suggests panel costs could keep falling as automation strips more labor out of production lines. Wills's closing line, as the host relays it, is that the real question is not why the transition is so fast but why anyone would expect it to be slow, given what prices and deployment are already doing.
Bottom line: Strip out the swagger and the core claim is reasonable: solar costs keep falling on a predictable curve, and batteries are scaling fast enough to matter. The 80 percent by 2035 figure is one optimistic forecaster's model, not a guarantee, and it is worth holding loosely. But the broader point that mainstream forecasts have repeatedly lowballed solar is fair, and it is the part worth sitting with. If you are planning around energy costs a decade out, betting on solar continuing to get cheaper has been the safe bet for 50 years running.
Commentary on a third-party video. Figures and claims are as presented in the source and have not been independently verified. Spotted an error? Tell us and we will correct it.