Aim Hire has 6.5kva generators for hire. They take 5000 watts of power and have twin 15 amp plugs and a safety cut out switch in order to run 30 amps of power all day long. You can run all power tools on site, cool rooms, an more and a safety switch will trip If the unit is overloaded.
The generators will run for 6 hours at full noise before needing petrol refueling or 10 hours at half rate of power consumption. Easy pull start operation.