We hardly ever go to CG's because we boondock most all of the time. During this past heatwave, we were at a KOA with 95v at the peds and most of the Rv'ers that I spoke to had no idea there was low voltage and didn't seem concerned about it. :h It amazes me that so many people spend so much money on these rv's and are clueless to how they work.
The owner of the CG said the state of VT. grid system can't handle a heatwave like they had 2 weeks ago.
I ran my Hughes Autoformer in conjunction with my 2 surge protectors and it boosted me to 110-115v to get me thru 2 days.
I was plugged into a 30 amp and it tripped the breaker after the 2nd day so I switched to another 30 amp plug and it got me thru another day using the Hughes.
The following day an opening for a site became avl at a state park with no hookups on a shaded site. That worked for me , I ran my genny with trouble free electricity and used my inexpensive 100w Harbor freight solar panels and all was fine.