Renting a generator that's too small means tripped breakers and angry subcontractors. Renting one that's too big means you're wasting diesel every hour it runs. Here's how to pick the right capacity for your Dubai project.
Generator Sizes at a Glance
Generators are rated by KVA output. Here's the rough breakdown:
- Portable (1-10 KVA): Handheld tools, phone charging, basic stuff
- Small (10-50 KVA): Good for small to mid-size jobs
- Medium (50-250 KVA): Where most construction sites land
- Large (250-500 KVA): Heavy industrial, big sites
- Industrial (500+ KVA): Infrastructure-level projects
Small Generators (10-50 KVA)
These handle:
- A handful of power tools and site lighting
- Utility crews doing roadside work
- Powering a temporary office or portakabin
- Small landscaping or maintenance jobs
- Any site where the load is light
Medium Generators (50-250 KVA)
This is what most contractors end up needing. Our Cummins 100 KVA and Perkins 150 KVA are the most popular for a reason:
- Running power across the whole site
- Multiple heavy tools going at once
- Site offices, AC, and welfare facilities
- Concrete mixing and pumping operations
- Demolition equipment
Large Generators (250-500 KVA)
When the job demands real power, the Perkins 500 KVA is the one to call for:
- Full industrial-scale power supply
- Round-the-clock site operations
- Running heavy construction equipment
- Backup power for hospitals, data centres, hotels
- Large infrastructure builds
Things to Think About
Before you commit to a size, ask yourself:
- What's the peak load? Add up everything that could run at once
- How long is the rental? Fuel efficiency matters more on long projects
- Noise restrictions? Silent units are mandatory in most residential areas
- Can the truck get in? A 500 KVA unit needs space to deliver and position
- Who services it? Make sure you've got maintenance covered
Not sure what size you need? Give us a call at 050 484 5636 — we can come out to your site and figure it out with you.
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