ronket, yes, the generator is a way of eliminating the ac altogether. As far as line conditioners, Akiko makes the Corelli and a smaller version which are both passive. I do not own the Corelli but have used their tuning sticks with good results.
But if I were in need of cleaning up my power, I would opt to plug a line conditioner such as the Corelli, into a generator that runs on a rechargeable battery. The battery would of course need recharging in between listening times. Which generator however, I am not sure. Those which are made specifically for high end audio have a steeper price tag than those which are not and I’m not certain whether or not there’s a noticeable difference between them.
In my current circumstance, I don’t have a lot of confidence in getting noticeable results from running a dedicated 20 amp line. I’m still reliant on my neighborhood transformer so while I may be able to bypass sharing the ac with my personal microwave and refrigerator, I’m still getting dirty ac from the neighborhood.