PUE and efficiency
The Climate Change Levy, the Climate Change Agreements (CCAs), the EU Emissions Trading Scheme (EU ETS) and the CRC Energy Efficiency Scheme have had a significant impact on British industries. Although data centres use considerable amounts of power, we help reduce exposure to growing IT utilisation costs with our low PUE designs. These can often compensate for data centre migration simply through the energy savings they offer.
Why do data centres consume so much power?
Data centres house large quantities of servers, communications equipment and storage devices. This equipment has become faster, smarter and more compact. As a consequence, data centres consume a significant amount of power which produces a huge amount of heat in the data halls.
The IT equipment/servers housed in data centres must be kept within their manufacturers’ operating temperature and humidity ranges. Some data centres use traditional mechanical refrigeration technology to achieve these levels, but this consumes large amounts of energy compared to evaporative cooling. Inefficient legacy data centres with a PUE of 3 can consume approximately five times as much power compared to the latest eco-efficient data centres.
At Infinity, we design our data centres to deliver an annualised PUE of 1.25 at full rated load. This is achieved through the use of high efficiency cooling plant. Cooling to the IT is via a raised floor and cold aisle containment configuration.
We use the latest technology to help minimise our customers’ energy costs and carbon footprints. This dramatically reduces the Total Cost of Ownership (TCO) of our data centres.
How do we improve the efficiency of our standard designs?
> We use elevated CHW (Chilled Water) temperature and evaporative cooling/adiabatic cooling technology to maximise the use of free cooling.
> We use CAC (Cold Aisle Containment) systems to direct the cooling to the exact location required by the IT equipment.
> We offer optimised fresh air and evaporative/adiabatic cooling for UPS and switchgear areas.
> Our racks contain blanking plates and floor grommets (where IT kit is not installed) optimising the pressure and volume of air required by cooling equipment.
> All CRAC units use active floor pressure control, regulating to the demand of the IT equipment.
> All cooling equipment has EC (Electronically Commutated) fans deployed.
> We optimise data centre temperatures to ASHRAE TC 9.9, maximising free cooling.
> We use variable speed fans and pumps.
> We incorporate LED lighting and PIR-activated lighting.