The sun is most definitely not a pith ball, that's your delusion, not mine. And I'm far from an expert on solar winds or the corona, though I don't need to be in order to debunk your nonsense.
As for how charged the sun is, I don't have a good calculation of my own. I can, however, provide you with a peer reviewed journal article with an estimate from someone who likely knows much more than I do (and much more than you or Scott or any of the other EU followers).
https://www.aanda.org/articles/aa/pdf/2001/24/aah2649.pdf
Their estimate is about 77 Coulombs, which is quite small on the scale of the sun. You can't power the sun on 77 Coulombs.