Tower crane power.
Hybrid battery + diesel systems sized for tower crane peak loads. Rent a generator half the size you'd otherwise need. Cut fuel costs. Stop oversizing for surges that happen 10% of the time.
- Genset Reduction
- ~50%
- Fuel Savings
- 60–90%
- Output
- Up to 500 kW peak
- Best for
- Multi-month builds
The oversizing problem
Tower cranes draw heavy peak power during lift cycles — typically 200–400 kW for a few seconds at a time. Between lifts, the load drops to nearly zero. To handle the peak, contractors traditionally rent a generator sized for the peak — 250 kW, 400 kW, or larger. That generator then runs at 5–15% load most of the time, which is the worst possible operating condition: high fuel consumption per kWh, accelerated wear, frequent service.
How hybrid solves it
Add a battery to the system. The battery handles the lift peaks. The generator only sees the smooth average load — which is much smaller. You can rent a 100 kW or 125 kW generator instead of a 250 kW one. It runs at 60–80% load (its efficient sweet spot), uses far less fuel, lasts longer, and costs less to rent.
Real numbers from project case studies
- 500 kW battery + 100 kW generator powered an 8-ton tower crane — generator runtime cut from 24 to 2.5 hours/day
- 150 kW genset replaced with hybrid: 100 kW genset + battery, now runs only 6 hours/day — 70% diesel reduction
- Tower crane site monthly fuel bill dropped from AED 28K to AED 5.5K with hybrid setup
Best fit projects
- Tower crane sites running 6+ months
- Pile driving operations with cyclic peak loads
- Concrete pump operations with surge demands
- Multi-equipment sites where peak coincidence is rare
Related Pages
More on hybrid and construction applications.
Questions
The questions buyers ask us most often. If yours isn't here, message us — we answer the phone.
Tower cranes have huge peak loads (during lifts) but very low average loads (between lifts). A pure diesel generator has to be sized for the peak — meaning it runs inefficiently 90% of the time. A hybrid setup with a battery handles peaks separately, so the generator can be much smaller and run efficiently.
Typically 40–50% smaller. A site that needed a 250 kW genset for a tower crane can usually drop to 100–125 kW with a battery in the loop. Lower rental cost, lower fuel cost, lower service cost.
Yes — battery output power is what matters for peak handling, not capacity. Our trailer units output up to 60 kW continuous and handle short-duration peaks well above that. For the largest cranes we use container units or parallel trailers.
Same principle. Any equipment with surge loads and idle periods benefits from hybrid. Pile drivers especially — they have very high startup current that destroys oversized generators when handled badly.