Nuclear fusion is considered by some to be the holy grail of an unlimited supply of clean energy.

In the South of France an international collaboration of scientists is trying to achieve that by recreating the power of the sun, right here on earth. ITER, which is latin for "the way", will be the largest nuclear fusion experiment in the world, once construction is complete.

Thirty five countries from around the world have come together to create a sustainable fusion reaction, designed to produce more energy than it consumes. The fusion reaction is created inside a containment vessel known as a tokamak, built to hold plasmas hotter than those found in the Sun.

ITER plans to begin its fusion experiments in 2025. Right now – it's a giant construction project, RAZOR reporter Shini Somara is given a glimpse behind the scenes.