New developments in UPS systems may focus more on flywheels than traditional lead batteries to ensure data centres are run more efficiently and power shortages are a thing of the past. The flywheel provides a mechanical alternative to chemical batteries which currently power more than 50% of UPS technology at present. Flywheels store up energy in much the same way as a traditional battery but where batteries use chemicals and life expectancy is affected with every ‘use’ the lifespan of a flywheel is limitless, requires little or no maintenance and most importantly offers significantly smaller footprint because it is mechanical. For those responsible for data centre energy efficiency, Flywheel technology could be the answer you have been looking for.