By putting in these inexpensive meters (which we showed to Aram at last year's Fall Rally in the hopes that he would make a pitch to have them installed in new Montana's, and btw we gave him all the contact information for the company) we know
exactly how many amps we are using. Because we know what we are consuming, we have comfortably stayed in state parks (like Letchworth in NY) and used just
20 amp service. If you know what you are using you can adapt as needed...Right now, sitting in New Orleans with fair weather, we are using just
4.3 amps while connected to 50 amp service (of course our lights are all
LED's )...
We have eleven interior 12 volt lights on; a 32" TV along with the satellite dish and DVR; our router and Pepwave; refer on electric, 3 Fantastic fans on; a printer, 3 laptops; our scare, porch, stair & frame lights on; ice maker; and a myriad of other devices on...
We also use and recommend a surge protection device; we have a portable 50 amp SurgeGuard.