Thorium can make a car run for a hundred years without you needing to refuel it.
Thorium is one of the most dense materials on the planet. A small sample of it packs 20 million times more energy than a similarly-sized sample of coal, making it an ideal energy source.
The current prototype ‘engine’ is said to weigh about 225kg, making it comparable with internal combustion motors. The real eye-opener is that one gram of thorium is said to contain more energy than 28,000 litres of unleaded. An American company called Laser Power Systems is working on using thorium to generate enough energy to create a laser, which heats water and creates steam that can ultimately provide motion. Just eight grams of thorium is enough to power a car for a century, and while it’s in the early stages, it’s genuinely viable.