Picking the right generator starts with matching power output to your tools....

https://zulu-wiki.win/index.php/What_is_a_Practical_Buffer_When_Hiring_a_Generator_So_It_Does_Not_Overload%3F

Picking the right generator starts with matching power output to your tools. Don’t pay for extra capacity you won't use, but ensure it handles your peak start-up loads. Think about location too