Solar Generator

[Skvez]

To get back to the OPs original question "would an EMP affect a solar power system"
The answer is "it depends".

Without going into a lot of detail about how EMP actually affects electronics basically if the EMP is 'close/strong' it may damage your solar cell / charging electroics. If its 'weaker / further away' it may only damage equipemnt plugged into the long power distribution lines. A smaller solar system with relatively short calbles that is not connected to the mains stands a better change of surviving.
Some people store solar cells and replacement charger controllers and inverters in a farrady cage.

However the prepper philosophy acknowledges that you can't prepare perfectly for everything.
A solar system that might be vulnerable to some forms of EMP is still a whole lot better under most emergencies than no solar system at all.