12+ kW Portable Generator

The 12+ kW band suits applications backing up a small electrical panel, running multiple high-draw tools (welders, compressors, saws) concurrently, or supplying baseload power to a crew trailer or site office. For one or two moderate tools, a chop saw and lights, or a single welder, the 7-12 kW Portable Generator is lighter, more fuel-efficient, and easier to position. This top rung has no step up within the portable generator class; larger power needs move to towable or stationary generator sets outside this classification.

• Emergency backup for a small office, clinic, or home service panel during outages
• Powering a full carpentry or masonry crew with simultaneous saw, mixer, and lighting loads
• Running multiple welders and grinders on a steel fabrication or pipeline site
• Baseload electricity for a construction trailer, portable office, or remote field camp
• Supporting HVAC startup loads and continuous operation during building commissioning
• Providing redundant power for outdoor events, food service, or mobile medical units

• Position exhaust downwind and at least 3 meters from air intakes, doors, and occupied spaces to prevent carbon monoxide accumulation
• Confirm load calculations do not exceed the prime rating; sustained overload trips protection or damages windings
• Use a transfer switch or interlock when connecting to a building panel to prevent backfeed into utility lines
• Inspect fuel lines, battery terminals, and coolant levels before startup; vibration and heat accelerate wear on high-hour units

• Lighter models (under 500 kg) move on integrated wheels or lift into pickups with two operators or a hoist
• Mid-weight units (500-1,200 kg) tow behind trucks on single-axle trailer frames with standard 2-inch ball hitches
• Heaviest configurations (over 1,200 kg) require tandem-axle trailers and may need brake-equipped tow vehicles per local codes

• Diesel fuel is standard across most models; gasoline and dual-fuel (gasoline/propane) options exist at the lower end of the band
• Refueling intervals range from 8 to 24+ hours at half load, depending on tank size and prime rating
• Output typically connects via twist-lock receptacles (L14-30, CS6364, CS8264) or direct hardwire to a distribution panel or transfer switch