Consequences of solar flare on earth?

Solar flare is a huge release of energy which can amount up to 6 x 1025 joules of energy. As we know that the flare ejects clouds of ions, electrons and atoms into space, which takes a couple of days to reach earth. Huge amounts of protons, electrons, heavier ions are accelerated nearly at the speed of light, causing radiation all across the electromagnetic spectrum.

The resulting X-rays and UV-radiation may affect the ionosphere of earth, disrupting long-range radio communications. Radar operations and other devices operating at decimetric frequencies may be disrupted.

The Solar proton event or CME( Coronal Mass Ejection) impacts earth`s magnetosphere and cause damage to astronauts, spacecrafts to varying degrees. Electrical power can be knocked off for a long period of time. Short-wave radio communication can also be damaged and affected to varying degrees.

Most scientists are also of the opinion that large solar flare can disrupt all electronic communication and equipment, which will be disrupting all electronic communication badly.

But no such solid evidence or experimental proof to such beliefs have been found yet.