FOCUS ON POWER
Practical proof of savings As you’d expect, ultra-high efficiency modular UPS such as Multi Power2 deliver cost, energy and carbon emissions savings when replacing old legacy monolithic UPS systems. But they also significantly outperform standard modular solutions too. What follows is a pair of actual TCO calculations we provided to customers in the process of upgrading their UPS: Comparison 1 outlines the savings as a result of replacing a monolithic 1 MW N+1 UPS system (made up of 3 x 12 pulse 600 kVA 0.9pf UPS) with a 1,250kW Multi Power2.
• Total annual energy cost saving = €95,759.65 • Overall total annual cost saving = €117,544.13 • Total annual CO2 saving = 148.7 Tonnes • Total 15-year cost saving = €2,353,655.21 • Total 15-year CO2 saving = 1702.8 Tonnes
Riello UPS Ireland’s ultra-high efficiency modular UPS systems.
Comparison 2 highlights the savings delivered by a 1,250 kW Multi Power2 at 1MW load versus another manufacturer’s latest modular offering, with their system comprising 3 x 400 kVA modular units. • Total annual energy cost saving = €51,099.24 • Overall total annual cost saving = €53,839.91 • Total annual CO2 saving = 79.4 Tonnes • Total 15-year cost saving = €1,078,068.22 • Total 15-year CO2 saving = 908.7 Tonnes In addition to these topline savings, the innovative design and long-life components used in Multi Power2 offer other advantages.
Modules are fully hot-swappable and mechanically segregated to avoid any single point of failure, combining a high MTBF (mean time between failures) with a low MTTR (mean time to repair) of less than 30 minutes. The system also includes an intuitive Efficiency Control Mode that ensures high efficiency even at lower loads. The UPS’ sophisticated microprocessors only activate the necessary number of power modules according to the real-time load and redundancy requirements, putting any surplus modules into standby to ensure optimum efficiency. If there’s any disruption to the mains supply, all inactive modules immediately restart to provide maximum protection. With most traditional UPS, capacitors usually need replacing around years five to seven of service life, so will probably need swapping out two or three times “The latest generation of modular uninterruptible power supplies delivers exceptionally high efficiency while still delivering the reliability critical applications depend on.”
over a typical 15-year lifespan. But with Multi Power2, it is realistic to go through the entire product lifespan without replacing the capacitors at all, resulting in significant cost savings plus fewer end- of-life components that need recycling. All in all, a typical customer could save anywhere from €80,000-€120,000 in maintenance costs over the UPS’ complete lifespan. Bear in mind that this figure does not include knock-on environmental benefits such as reducing the number of miles engineers will travel because of fewer required maintenance visits. It’s clear to see that the next generation of modular UPS will provide the robust protection required whilst also helping facilities become more sustainable, a true win-win outcome. For further information contact: T: +353 (0)1 6917 601 - www.riello-ups.ie
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IRELAND’S ELECTRICAL MAGAZINE | 47
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