Latest power publications

UPS Power Considerations: The Lithium-ion Tradeoff

Given their many advantages over alternative technologies, lithium-ion batteries are gaining in popularity as a power backup option for data centre Uninterruptible Power Supply (UPS) systems. A 2018 Bloomberg New Energy Finance report forecasted that Li-ion technology will comprise 40 percent of all data centre backup batteries by 2025, and that in the hyperscale sector, Li-ion will become the predominant battery technology, accounting for 55 percent of UPS batteries.

Compared with traditional valve-regulated lead-acid (VRLA) alternatives, Li-ion batteries offer greater power density, smaller size, less weight and longer operating life. They can also withstand many more charge/recharge cycles, typically more than 1,000 compared with 200-400, before losing their ability to provide effective backup power.

As a result, they occupy less space, incur lower maintenance costs and require less frequent replacement than VRLA batteries offering the user a lower total cost of ownership (TCO) over the lifecycle. This helps to offset their chief disadvantage, an initial cost premium, but even that is steadily diminishing thanks to ongoing technology development and increased manufacturing volumes.

Additionally, recent studies conducted by Schneider Electric’s Data Centre Science Centre, detailed in White Paper #229: ‘Battery Technology for Data Centers’, found that over a 10-year period, Li-ion delivered a TCO that is between 10 percent and 40 percent lower than equivalent UPS systems based on VRLA batteries.

UK data centre power continuity plans under the spotlight

A new report has urged UK data centres to reevaluate their power contingency plans amid increasing energy outages.

The report, commissioned by temporary power generation equipment supplier Aggreko, said data centres risk costly downtime if contingency plans are not urgently addressed and that power irregularity and ageing equipment are increasing the risk of outages.

Using smart grids to unleash the true power of uninterruptible power supplies

Riello UPS’s Leo Craig on why data centre operators should use the increasing popularity of smart grids to rethink the role of their uninterruptible power supplies, transforming an underutilised asset into a valuable money-maker In the next five years, the number of connected devices in the UK will more than double from 270 million at… Read More

Power players: Lessons other industries should learn from data centres
Following its launch of the Blackout report, an in-depth analysis of how likely the UK is to experience a nationwide electricity failure, Riello UPS General Manager Leo Craig explains why other sectors should follow the data centre industry’s approach to power continuity It was just a few weeks ago in mid-June when more than 50... Read More

How to design high reliability UPS power modules

Modular UPS systems are usually presented as a very reliable solution with high availability In fact, the best modular UPS systems are designed to increase the global system’s reliability and availability with minimum downtime thanks to their hot-swappable parts and cost-effective redundancy, the complete independence of each module and no fault propagation if one of… Read More

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