Allye Energy has finalized its largest purchase order to date involving five MAX500 battery energy storage systems (BESS). This acquisition by Vital Power Group targets grid constraints within the construction sector. The deal reportedly exceeds £1 million in value.
Highlights
- Vital Power Group orders five MAX500 units for construction applications.
- New systems feature integrated DC fast charging capabilities.
- Launch completes Allye’s product range from 300kWh to 1.5MWh.
- Units utilize repurposed second-life EV battery packs.

Deploying Mobile Storage for Construction
The MAX500 units provide 500kWh capacity and 420kW power output. These systems will support zero-emission construction equipment. This infrastructure solution addresses logistical challenges where grid access is limited.
Moving heavy machinery to fixed charging points significantly reduces productivity. Allye’s mobile units bring power directly to the equipment. This approach maintains uptime while removing reliance on diesel generators.
Integrated DC Fast Recharging Capabilities
The MAX500 is the first system in the range to include DC fast recharging. It replenishes from 20% to 80% state of charge in roughly one hour. This allows units to charge from public infrastructure or other battery systems.
This feature creates a flexible energy ecosystem suitable for dynamic worksites. Allye Energy plans to roll out this technology across the full MAX series. This includes the smaller, mobile MAX300 unit.

Expanded Battery Energy Storage Portfolio
The MAX500 launch finalizes Allye’s product lineup. The company now offers four distinct systems to meet varied energy needs. The complete portfolio includes:
- MAX300 (~300kWh, 280kW): A trailer-mounted mobile unit weighing under 3.5 tonnes. It is suitable for film production and temporary events.
- MAX500 (~500kWh, 420kW): Offers a balance of mobility and power. It is optimized for construction applications and features DC fast recharging.
- MAX1000 (~1MWh, 840kW): A high-capacity system designed for grid-tied EV charging hubs. It supports facilities requiring sustained high power.
- MAX1500 (~1.5MWh, 1.25MW): A flagship system deployable via hook loader. It suits industrial electrification and data centers.
Strategic Distribution and Sustainability
This contract initiates a three-year distribution agreement with Vital Group. Allye repurposes second-life EV battery packs for these systems. This strategy aligns with circular economy principles by extending battery utility.
Vital Power Group will support the units with comprehensive maintenance packages. Service level agreements include response times as short as four hours. This ensures operational reliability for end-users on active construction sites.
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