I can only offer what my actual experience has been. Thousand Trail's is not known for upgraded equipment yet, for one example, at Rancho Oso in Santa Barbara, Ca their 30 amp service has run my two 15,000 btu units on most every occasion I've needed them. And Yes, I do monitor voltage..our MH just happens to have Voltage and amp meter's for each leg of pedestal power and in this case the single leg and never did I get to a critical low voltage situation. Here again, maybe I was just lucky, maybe the compressor's never started together, maybe the sky is falling.....I say the only way to know for sure is to try it WHILE watching your voltage easy enough??? :)