Power Control helps Amito reach a PUE of 1.2 and reduce the data centres CO2 by 109,062kg within a year
Power Control
Data Centre Energy Efficiency Project of the Year
Entry Description
All data centre operators endeavour to achieve a PUE ratio as near to 1.0 as possible. This is being achieved through a wide range of energy saving methods. It is important to note, that whilst a 1.0 PUE ratio is achievable for new build data centres, older facilities are finding it more challenging. Often it is not financially viable to safely upgrade equipment purely to achieve greater efficiencies.

Despite these challenges, Amito, the largest co-location datacentre along the M4, which was built from the ground up in 2012, can also boast leading efficiencies and PUE ratio. Ambitious from the start, Amito opened its doors with 6.4MVA and a 1000 rack footprint capable of supporting rack power densities up to 35kW with separate A+B power supplies. Focussed on resilience first, Amito continues to see rapid growth, which has allowed it to invest in improvements to its infrastructure and ultimately achieve leading PUE goals.

Power Control Ltd has played an instrumental part in helping Amito realise significant efficiency gains by presenting a modular UPS (uninterruptible power supply) solution as an alternative to Amito’s transformer based UPS.

Transformer based UPS have their place but due to their component structure are less efficient than transformer free and modular technologies therefore, maximising their efficiency is more challenging. Transformer based UPS can also limit scalability and inherently lead to inefficiencies, in particular in 2N configurations where the load is often not large enough. Loads within data centres fluctuate and this needs to be accounted for within any power protection strategy.

With UPS systems being major contributors to PUE ratings, modular technologies must be considered. Advances in modular UPS technology not only means they provide greater operational flexibility and are more efficient but modern technologies have also proven their resilience.

UPS systems are major contributors to PUE ratings and following a site survey and operational assessment, Power Control confidently presented the modular Huawei UPS5000-S solution as a direct swap out for the legacy transformer based units.

In total eight 400kVA transformer based UPS systems have been replaced with eight high efficiency 400kVA Huawei UPS5000-S modular UPS systems in a 2N configuration (the same as previous).

This direct swap out and upgrade has contributed to reducing the data centre’s CO2 by 109,062Kg within a year and reduced the PUE to 1.2, driving power and business continuity for client IT networks.

Prior to the upgrade, Amito’s power infrastructure did not allow for scalability. Standalone UPS are usually fixed capacity meaning they are based on day 1 capacity and leading to an over or under sized UPS in the future.

The 2N configuration means each UPS is running at a lower load, the UPS 5000-s can reach 96.5% efficiency at 20% load, and 97.1% efficiency at 40% load. Power Control specified the set up to achieve optimum efficiency whilst still ensuring the reliability of a 2N configuration.

Amito is now able to future proof UPS capacity, with the ability to scale up and meet increased load demands as and when required. The recently adopted modular formation also enables Amito to achieve peak UPS efficiency of 96% at all times in online mode and to achieve zero downtime with minimal risk when expanding the UPS and battery capacity.

A reduced TCO (total cost of ownership) has also been achieved thanks to the high efficiency and long 15-year design life of the DC capacitors. Furthermore, the Amito has benefited from reduced capital expenditure by only installing the number of modules needed to meet the initial load requirement. Each of the eight modular UPS systems can be flexibly expanded up to 800kVA. Amito now has a reliable power infrastructure that expands with business growth and eliminate single points of failure.