When it comes to keeping your construction site, workshop, or industrial facility running smoothly, selecting the right generator size is one of the most critical decisions you’ll make. At Al Wisam Trading Co., we understand that power reliability isn’t optional, it’s the backbone of productivity, safety, and efficiency on-site.
Whether you’re powering a small site office, heavy machinery, or full-scale operations, choosing a generator that’s too small can lead to overloads and shutdowns, while going too large means wasted fuel and higher costs. Let’s break down how to determine the right generator size for your specific needs.
Every generator is rated in kilovolt-amperes (kVA) or kilowatts (kW), a measure of how much electrical load it can handle. To find the right size, start by identifying all the equipment, tools, and systems you plan to run simultaneously.
Common site equipment that requires power includes:
Each piece of equipment has a rated wattage (usually found on a label or datasheet). Add these up to find your total load requirement.
Many machines, especially motors, compressors, and pumps, need more power when starting up, often 2 to 3 times their running load.
For example:
A concrete mixer that runs at 3 kW may need up to 9 kW on startup.
If your site uses several machines that start simultaneously, it’s essential to factor in that surge. Undersizing your generator can cause tripping, low voltage, or equipment damage.
In the UAE and GCC, environmental conditions can heavily influence generator performance:
This is why DEPCO Generators, offered by Al Wisam Trading Co., are engineered to perform in extreme GCC conditions, with high-capacity cooling systems, fuel efficiency, and reinforced enclosures.
Not all generators serve the same purpose.
If you’re a contractor running continuous heavy machinery, you’ll want a prime-rated generator like the DEPCO DPK-DC-275 or DPK-DC-220, both designed for long operational cycles and demanding conditions.
Always consider future site expansion or additional equipment needs. Choosing a generator that runs at 70–80% load capacity gives you room to scale without straining the system.
A good rule of thumb:
“Size for today, plan for tomorrow.”
For example, if your current site load is around 80 kVA, opting for a 100–110 kVA DEPCO generator ensures smoother performance and future flexibility.
Selecting the right generator size isn’t just about math, it’s about understanding load types, duty cycles, and site logistics. That’s where our team at Al Wisam Trading Co. comes in.
We help contractors and engineers across the UAE and GCC with:
Our DEPCO diesel generators, ranging from 44 kVA to 275 kVA, are built to handle GCC conditions with:
Application | Typical Load | Recommended Generator |
| Small site office (lights, AC, computers) | 10–15 kVA | DEPCO DPK-DC-18 |
| Construction site (mixers, cutters, tools) | 60–100 kVA | DEPCO DPK-DC-110 / DPK-DC-170 |
| Large-scale projects (multiple machines, cranes) | 200+ kVA | DEPCO DPK-DC-275 |
Choosing the right generator isn’t just about buying equipment, it’s about ensuring your entire operation runs without interruption.
At Al Wisam Trading Co., we don’t just supply power; we supply reliability.
Whether you’re powering concrete mixing machines, rebar benders, or heavy-duty cutting tools, our range of DEPCO diesel generators is designed to keep your site efficient, productive, and safe, no matter the load or location.
Need help selecting the right generator size?
Contact Al Wisam Trading Co. today for expert guidance and a custom power assessment.
