Solar or generator or a combination of the two,
I have a 560watt solar/inverter system with 435ah AGM battery bank. I run everything 24/7 except in hot summer you still need shore power or generator for A/C units.
Solar is convenient and silent. A lot of parks won't let you run a generator so with enough solar and battery bank it's not an issue. Weight of solar panels and batteries and components can also be an issue for some.
2014 Palomino Columbus 3650TH
435AH 12V VMax Charge Tanks, 520 watt Monocrystilline Solar Array, Morningstar MPPT TS-60 CC,Morningstar Remote,Cotek True Sine Wave Inverter,Cotek Remote Controller,50amp Progressive Hardwire Surge Protector
2015 Dodge 3500 6.7L 4X4
2011 CanAm Commander XT 1000