Your tower crane's generator can burn £1,400 of fuel a week.
Power the site. Not the diesel bill.
Hybrid battery power for tower cranes, plant and site welfare, with a much smaller generator or none at all.
The problem
Oversized generators, running mostly idle
A crane needs high power for seconds at a time. Its generator is sized for the peak and burns fuel all day.
Off-grid Construction, infrastructure and plant
Oversized
200 to 800kVA generators are normally specified for tower cranes.
Fuel and deliveries
Weekly fuel deliveries, refuelling and theft risk on every site.
Noise and fumes
Restrictions on urban sites, night work and near neighbours.
Carbon targets
Clients, tenders and contracts now expect low-carbon sites.
How it works
The battery takes the peaks
MAX carries the crane's peaks and the site's load. A small generator runs only to recharge it, at its most efficient.
Charge
From a small generator, a DC charger or a site supply.
Power
MAX delivers the crane's peaks and the site's load, quietly.
Rest
The generator switches off most of the time, cutting fuel.
Save £76,500 a year per crane
£918,000 over the 12-year battery life, running hybrid with a small generator
| Fuel savedHybrid with a small generator | £1,500/week |
| Smaller generatorLower hire and fewer services | £200/week |
| Weeks on hireTypical crane contract | 45 |
Sources: Allye case study (Horizon Plant); Construction Enquirer (July 2025); Aggreko and The Construction Index (July 2023).
Electric plant
And charge electric machines on site
saved at Lower Thames Crossing, with four MAX500s replacing diesel.
DC charging for electric excavators, with no grid connection on site.
Why MAX
Made for construction sites
Near-silent
59dB with zero local emissions, for city centres, night work and near neighbours.
Tow, lift or drop
MAX300 tows under 3.5t on a standard licence; MAX1000 and MAX1500 drop in minutes.
Transport made simple
Classified UN3536: users display a plate and Class 9 label, with no wider ADR obligations.
Recharge without diesel
Top up from any DC fast charger or another MAX, or a generator at efficient load.
Charges your electric plant
Integrated DC charging, up to 1.28MW, for vans, trucks and electric machinery.
Safe and supported
CE and UKCA marked, every cell monitored 24/7, supported by the UK engineers who built it.
Proven
Already keeping the power on across the UK
Horizon Plant
Hybrid with tower crane generators: 70% less fuel, £1,500 a week
Read the case study →Construction, EnglandLower Thames Crossing
Four MAX500s charging excavators off-grid: over £30k a week saved
Read the case study →Construction, EnglandCollins Earthworks
Charging electric trucks from a 125A supply, saving £2,500 a week
Read the case study →Fleet charging, ScotlandJ&M Murdoch
DC fast charging from a 32A supply, deferring a £300k grid upgrade
Read the case study →Recommended
The MAX for this job
MAX300
- Capacity
- 328kWh
- Continuous power
- 88, 140 or
280kW - DC charging
- up to 400kW
Under 3.5t on its trailer, towed on a standard licence.
MAX500
- Capacity
- 492kWh
- Continuous power
- 210 or
420kW - DC charging
- up to 480kW
Compact 10ft footprint, lifted into place on any site.
MAX1000
- Capacity
- 984kWh
- Continuous power
- 420 or
840kW - DC charging
- up to 1.28MW
Drop and Go from a hooklift truck in under two minutes.
MAX1500
- Capacity
- 1,476kWh
- Continuous power
- 630 or
1,260kW - DC charging
- up to 1.28MW
Our highest power, Drop and Go in a 20ft footprint.
FAQ
Questions buyers ask
Can a battery power a tower crane?
Yes, running hybrid. MAX carries the crane's peaks and the site's load, and a small generator runs only to recharge it at its most efficient. Horizon Plant cut fuel by 70%, saving £1,500 a week per crane.
Can MAX charge electric excavators on site?
Yes. At Lower Thames Crossing, four MAX500s deliver 240kW DC charging to electric excavators with no grid connection, saving over £30k a week.
Is MAX difficult to transport?
No. Each MAX is classified UN3536: users display a plate and Class 9 label, with no wider ADR obligations. MAX300 tows under 3.5t on a standard licence.
Put MAX on your next crane
Tell us the crane, the site load and the contract length. We'll size the system and show the fuel saving.
- A free fuel and CO2 model for your site
- Hire availability and a quote
- The full MAX brochure and specifications
sales@allye.com+44 (0)20 805 06560