This would be similar to the Carrington Event which took place back in 1859.
The solar storm was so powerful that its southern auroras could be seen as far north as Queensland in Australia.
Solar storms can wreak havoc on global technology as the radiation which pummels our planet heats up the outer atmosphere, causing it to expand.
Satellite signals will struggle to penetrate the swollen atmosphere, breaking internet, GPS navigation, satellite TV and mobile phone signal.
Increased currents in the Earth’s magnetic field will also lead to a surge of electricity in power lines, which will blow out electrical transformers and power stations.
A solar storm the size of the Carrington Event would cost around $2trillion (£1.6trillion) to the US economy in the first year it struck.
It would take up to 10 years to recover, a 2008 report stated.