There are really portable generators that run from 35-75 pounds, that put out about 1-2KW of power. These are like the Hyundai, Pulsar and Yamaha portable generators. They are useful for camping and rustic cabin home sites. They can run intermittently and are not designed to run continuously for days on end.
However – We are mainly talking about 4-7 KW generators that can power your home in an emergency. These babies weigh from 100 to 200+ pounds. That’s why they come with steel frames, handles and wheels. You really need the wheel option to make moving these units around a little easier.
Even though they are portable and can be moved pretty much anywhere they still need to be set level when running to get proper oil and gas flow. Check out what loads you really need to run and then pick the generator that best suits your needs!