Dumarey Green Power deployed a single Revolution Battery to power two tower cranes on an HG Construction site in London, replacing two diesel generators and achieving a 94% reduction in CO₂ emissions.
Clients:
HG Construction
Falcon Power Generation
Industries:
Applications:
A single Revolution Battery replaced two 250kVA diesel generators, saving £1,445 per week in fuel costs and cutting CO₂ emissions by 94%. The compact system required only a 63A mains supply, freeing up valuable space on a congested London construction site.
Tower cranes are essential on construction sites, but they present a significant energy challenge. The Moritsch RTL195 is a luffing-jib crane with a maximum lifting capacity of 16 tonnes, featuring electric motors for hoisting and luffing with a peak power demand of approximately 164kVA. When mains power is not available, each crane requires a 250kVA diesel generator to handle power peaks.
On this London site, HG Construction faced several challenges with diesel power:
To address these challenges, HG Construction partnered with Falcon Power Generation and Dumarey Green Power to deploy the Revolution Battery energy storage system.
A single Revolution Battery was installed to power both Moritsch RTL195 cranes on site. The battery was connected to a 63A (45kVA) mains feed for charging. The Revolution Battery can produce peaks of 300kW from a compact 28kWh battery pack, making it small enough for even the most congested construction site.
When connected to mains power, the Revolution Battery targets an 80% state of charge, charging as soon as SoC starts to drop. These “micro-cycles” combined with maintaining SoC at an optimal level, and advanced thermal management help to prolong battery lifetime. The system runs 24 hours a day, ensuring the cranes are always ready to operate.
The use of a small 28kWh pack minimises embodied emissions, size, weight and system cost. Typical NMC or LiPO batteries require 300kWh of storage to deliver 300kW of power, resulting in a much larger system. The Revolution Battery’s ability to power two cranes from a single unit demonstrates the scalability of the system for multi-crane sites.
The deployment of the Revolution Battery delivered dramatic results:
Eliminating the use of diesel generators on cranes has wide-ranging benefits. Most obviously cost savings on generator rental and fuel, but also social benefits from CO₂ reduction, improved air quality, reduced noise and fewer deliveries to site. The Revolution Battery required only a small, readily-available 63A 3-phase mains supply, a fraction of the large temporary building supplies normally required for multi-crane sites.
High-power, low-energy battery energy storage system powering two tower cranes from a single unit
The system replaced two diesel generators with a single 63A 3-phase mains supply
Two 250kVA generators and loadbanks removed entirely from site, eliminating fuel deliveries and servicing
A single 28kWh battery pack powers both cranes, demonstrating exceptional scalability for multi-crane construction sites
litres of diesel saved each week
-
% reduction in CO₂ emissions
(3.55 CO₂/week saved)
£ per week cost saving
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