BATTERY POWER Ӏ SECTOR REPORT
E-power started trading in 1990 in Limburg as Europower Generators. Since then the company has outgrown three factories before occupying its current 9,000m2 Nieuwerkerken site.
The P-grid combines a Stage 5 diesel generator and a lead- carbon battery in one compact power unit to effect peak shaving. “You still often see large
generators running continuously because they need to deliver peak power at any moment,” says Kurt Van Dal, CEO and owner of E-power. “This, of course, consumes a lot of fuel, while in reality, you only have such peak loads for a few seconds or minutes at a time. The P-grid solves this problem: the battery delivers the peak power while the generator ensures that there is always
Manufacturer Liebherr has been promoting its new Liduro Power Port, a mobile energy storage system developed within the group. It uses lithium-ion batteries to store energy and deliver it on-demand to various electrical consumers. The batteries are mounted on a wheeled chassis fitted with a drawbar, so it can easily be transported to the job site; the range consists of five models with power ratings ranging from 39 to 156 kWh. CJ Bois, a French company specialising in the manufacture and assembly of timber frames and frameworks, used a Liduro LPO 100 for the construction of a public access building in the Auvergne- Rhône-Alpes region of France. The Liduro was recharged on-site
power and the battery remains optimally charged. “Moreover, you need much less maintenance. It is not only a cost-saving but also a gain in sustainability and reliability. And with a payback period of one to three years, it is an investment that pays off quickly.” In the UK, construction group
BAM has already utilised the system with success. “The
DELIVERING ON-DEMAND POWER WITH LIEBHERR'S LIDURO POWER PORT
using a 220 V single-phase socket (16 A / 2 kW), which could then be used to power a type 65 K.1 bottom-slewing crane on demand. It was also possible to connect a range of electro-portable tools directly to Liduro, such as frame screwdrivers, which require lots of power.
The energy could be delivered on-demand to meet power
requirements of up to 20 kW (63 A) on the site, where timber elements weighing between 800 and 1,200kg were lifted. “On the job site the Liduro was able instantly to deliver our peak
power demands," comments Christophe Chiampo, site manager at CJ Bois.
30 CRANES TODAY
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