Latest power publications
Riello UPS has expanded its NextEnergy (NXE) series with a more powerful 500 kVA model.
Riello said the new NXE 500model incorporates the latest transformerless technologies to deliver TÜV-certified operational efficiency up to 97 percent in online UPS mode, helped by its Efficiency Control System which minimises wasted energy at partial loads.
Rolls Royce and Daimler Truck AG plan to collaborate on fuel cell generators for data centres, with the companies planning to launch a demo system later this year.
The fuel cells themselves will be supplied by Daimler Truck AG, one the world’s largest commercial vehicle manufacturers, and fellow automaker group Volvo.
Last year both companies signed a preliminary agreement to manufacturer the energy devices on a large scale.
Data centres exist to deliver IT workloads in a manner that is both capital and energy-efficient, in this way both data centre and customers benefit. Yet the power delivery method remains rigid, inflexible and usually misaligned with IT SLAs, which has a significant negative impact on performance and infrastructure capital efficiency.
For many in the data centre sector, one of the most pressing concerns is that much of the world’s data centre infrastructure operates in a manner that is financially suboptimal and environmentally unsustainable. While there is steady capital inflows to the data centre sector some are questioning whether data centres are as capital efficient as they could be. If a data centre is only using a fraction of the available power then the capital investment that is tied up in inflexible power infrastructure is impotent. The question is, who is paying for that stranded capacity and unused space?
Ohio-based data centre specialist Vertiv has launched its first single-phase UPS with next-generation lithium-ion batteries.
The new lithium-ion-based Liebert PSI5 comes in 1,500VA and 3,000VA capabilities and is available now in the US and Canada.
A UPS battery’s ability to store energy reliably and efficiently during normal operation, making it immediately available to the load during a mains failure, is critical to data centre security. Mark Coughlin, Applications Manager for Reserve Power at EnerSys reviews the key battery technologies currently available, to inform commercial and technical specifiers responsible for battery selection.