There are generator sets that will run that load with ease and do it quietly too! There are a raft of regulations you MUST comply with (unles you are "glastonbry"! Ask your spark if he is wiling and able to do this sort of instilation (not all can do it) There are problems with all types of power suply!
Forget the Power companies (YOU CAN'T AFORD THEM)
"Part P" is only for Domestic Instilations
Deni C if you ned any more information from an old(ish) sparkie PM me!