Cummins Onan is a leader in RV generators and has been in the business for over 80 years. These are available in all three common fuel types as well: gas, diesel, and propane. Onan's RV line comes in sizes starting at 2500 Watts, and going over 12,000 Watts. You can also get remote muffler options to reduce to noise near the unit, and for even more added convenience, they offer a remote start feature, so your RV can be nice and hot or cool before you even enter! The enclosed models are also significantly quieter than national park requirements, so with a Cummins Onan, you will not be a bad neighbor.

Another interesting technological advance is the Hybrid generator. These will use an inverter and have a battery pack on board, the attempt is to run only high enough to power what is being demanded, and will send extra power to charge back-up battery packs, or run at a lower rpm. They also have a smart system with auto-start when the AC needs to turn on, or the batteries get low.