Choosing the right generator isn't rocket science, but you need to get it...

https://www.bookmarking-fox.win/choosing-the-right-generator-starts-with-sizing-up-your-gear-check-the-total

Choosing the right generator isn't rocket science, but you need to get it right. First, check the wattage of your gear so you don't overload the unit. Think about the fuel type, as petrol works for quick jobs while diesel is better for extended running