United Rentals supplies reliable generator hire solutions for projects of every size, from portable units for trade and event applications through to heavy-duty diesel and hybrid generators for major worksites. With options ranging from 5 kVA to 125 kVA, plus battery and solar-assisted hybrid systems, we can help you keep your project powered while reducing fuel costs, emissions and noise.
Not sure what size generator you need? Contact our team for expert advice and a competitive quote.
The largest confirmed unit in the range, for major projects needing continuous supply without a grid connection.
Generator Hire Built for Australian Sites
We stock generator hire options for whatever the job needs, covering construction sites, events, workshops, and backup power. The range runs from small portable units through to the largest diesel gensets in the fleet, plus hybrid options that pair diesel with battery storage.
Need something light enough to move by hand for a short job, or a heavy-duty unit that can run for weeks on a major site? Our range covers both ends, so you're not stuck oversizing or undersizing to fit what's available. Hybrid units bring battery storage into the mix too, cutting fuel use and noise for sites that want to keep running costs down without giving up reliability.
From standalone diesel generators and hybrid units to Battery Energy Storage Systems (BESS) and solar platforms, our team helps you settle on the right capacity and power type for your site.
Built to Cut Fuel, Emissions, and Noise
Pairing a generator with battery storage or solar can cut fuel use by up to 80%, emissions by up to 50%, and site noise by up to 90%, compared to running diesel alone.
Ready to Connect
Our power generation equipment arrives ready to go on site. Solar platforms come prewired with standard MC4 plugs, BESS units are built for rapid commissioning without waiting on a grid connection, and many of our generators can be fitted with quick-connect socket panels.
Full-Service Support
We deliver across metro and regional areas, with breakdown support and battery backup to ride out routine servicing. If your project runs longer than planned, long-term hire rates keep things simple.
Diesel vs. Hybrid: Which Generator Do You Need?
Our generator range covers two power types, depending on what your site needs.
Diesel generators (5kVA to 125kVA): Standalone, dependable power for construction sites, events, workshops, and backup supply. Available in portable and skid-mounted configurations depending on capacity.
Hybrid generators (15-25kVA single-phase, and 22-44kVA three-phase with solar): Diesel power combined with built-in battery storage (and, on the three-phase unit, solar panels), cutting fuel use and noise by letting the battery carry the load during quieter periods.
That depends on your site's power draw. As a general guide, smaller portable units (5-8kVA) suit tools and lighter equipment, mid-range units (20-85kVA) suit construction sites and workshops, and the largest unit (125kVA) suits major projects needing continuous three-phase supply. Our team can help you match capacity to your site.
What's the difference between a diesel and hybrid generator?
A standalone diesel generator runs on fuel alone. A hybrid generator combines a diesel engine with built-in battery storage, so the battery can carry the load during quieter periods and reduce how much the diesel engine has to run, cutting fuel use and noise.
Can I hire a generator for a short-term project?
Yes, alongside long-term hire rates if your project runs longer than planned.
Do you deliver generators to site?
Yes, we deliver across metro and regional areas.
What's the difference between standby and prime power?
Standby power (ESP) is the maximum output available during a power outage for limited hours per year. Prime power (PRP) is the continuous output a generator can deliver indefinitely under normal operating conditions.
Can't find what you need?
Contact us for any further questions you may have about United Rentals.
