Portable Generators for Rent
Browse United Rentals’ selection of portable generators. Our options of small and medium generators are perfect for light-duty jobs or as emergency backup power. From small gas-powered portable generators to larger diesel-powered portable generators, our full fleet includes construction-grade units loaded with quality features and power from 2 kW to 6.9 kW to satisfy even the most demanding applications.
FAQs about Portable Generators
Do you have to ground a portable generator?
- According to OSHA requirements, the frame of a portable generator does not need to be grounded (connected to earth) because the frame serves as the ground, replacing the grounding electrode.
How do I hook up a portable generator to a house?
- There are a couple of ways to hook up a portable generator to a house. You can plug in each appliance with individual cords into the generator or power a circuit panel using a transfer switch.

2.0-2.4kW Portable Generator, Gas Powered
- Electronic ignition
- Gasoline powered
- Runtime up to 5 hours
- Three engine speeds available
- Add this portable generator to your cart now

2.5-2.9kW Portable Generator, Gas Powered
- Electronic ignition
- Gasoline powered
- Runtime up to 5 hours
- Three engine speeds available
- Add this portable generator to your cart now

3.0-3.4kW Portable Generator, Gas Powered
- Electronic ignition
- Gasoline powered
- Runtime up to 5 hours on one tank of fuel
- Ideal for powering up tools like compressors and grinders
- Add this portable generator to your cart now

3.5-3.9kW Portable Generator, Gas Powered
- Electronic ignition
- Runtime up to 5 hours on one tank of fuel
- Gasoline powered
- Ideal for powering up tools like compressors and grinders
- Add this portable generator to your cart now

4.0-4.4kW Portable Generator, Gas Powered
- Runtime up to 5 hours on one tank of fuel
- Mounted on a wheeled cart for increased portability
- Gasoline powered
- Power up tools, equipment or light towers
- Add this portable generator to your cart now

5.0-5.4kW Portable Generator, Gas Powered
- Runtime up to 8 hours on one tank of fuel
- Mounted on a wheeled cart for increased portability
- Gasoline powered
- Power up tools, equipment or light towers
- Add this portable generator to your cart now

5.0-6.5kW Portable Generator, Diesel Powered
- Idle control function to save fuel and reduce noise
- Provide power to electronics or tools
- Electronic ignition
- Runtime up to 32 hours on 50% load
- Add this portable generator to your cart now

5.5-5.9kW Portable Generator, Gasoline Powered
- Runtime up to 5.8 hours on one tank of fuel on full load
- Gasoline powered
- Ideal for powering up tools like compressors and grinders
- Provide emergency or standby power
- Add this portable generator to your cart now

6.0-6.4kW Portable Generator, Gasoline Powered
- Runtime up to 8 hours on one tank of fuel on full load
- Gasoline powered
- Ideal for powering up tools like compressors and grinders
- Provide emergency or standby power
- Add this portable generator to your cart now

6.5-6.9kW Portable Generator, Gas Powered
- Runtime up to 6.9 hours on one tank of fuel
- Mounted on a wheeled cart for increased portability
- Gasoline powered
- Power up tools, equipment or light towers
- Add this portable generator to your cart now

7.5-7.9kW Portable Generator, Gasoline Powered
- Runtime up to 6.9 hours on one tank of fuel on full load
- Gasoline powered
- Ideal for powering up tools like compressors and grinders
- Provide emergency or standby power
- Add this portable generator to your cart now

9.6-9.9kW Portable Generator, Gasoline Powered
- Runtime up to 3.7 hours on one tank of fuel on full load
- Gasoline powered
- Ideal for powering up tools like compressors and grinders
- Durable frames
- Add this portable generator to your cart now

Generator, 12-14 kW, Diesel
- Large fuel tank to maximize uptime
- Emergency stop switch included
- Voltage selector switch and multiple outlets
- Efficient diesel engine with quiet operation
- Uses: Ideal for powering tools, light towers and other equipment
- Add this generator to your cart now

Portable Generator, 10.0 kW-11.9 kW
- Electronic ignition
- Gasoline powered
- 8.2 gallon fuel tank capacity
- 4.6 hour run time under full load
- Uses: Ideal for providing consistant and portable power for jobsites and for emergency power systems
- Contact a United Rentals representative for more information

Portable Generator, 8.0 kW-8.4 kW
- Full-panel GFCI protection that is OSHA and NEC 2011 compliant
- Idle control to conserve fuel and reduce noise
- True Power technology provides clean, smooth operation of sensitive electronics, tools and appliances
- Large-capacity steel fuel tank with an incorporated fuel gauge to keep you up and running on the jobsite
- Uses: Ideal for providing consistant and portable power for jobsites and for emergency power systems
- Contact a United Rentals representative for more information