What do you mean by a "standard" generator?

FG Wilson makes more than 30 “standard” gensets for every imaginable domestic and commercial purpose.

Because all models are readily available, there’s never a long wait to get just the right genset for your specific needs. Our gensets are easy to service and maintain and parts are quickly available. While a “custom-made” generator may sound good in theory, it can suddenly seem a less attractive choice when parts and service are not readily available and you’re facing a power emergency.