Google says it plans to deploy a thermal storage cooling system for its new 15-hectare data centre site in Changhua County, Taiwan, Data Centre Knowledge reported.
Google has long since been a leader in energy efficiency for its data centres, but this is the first time the company has decided on thermal storage.
The system takes advantage of the temperature and power price arbitrage that occurs between day and night. The system stores energy in the evening when temperatures and electricity prices are typically lower by freezing water into ice. That stored energy is then released from the ice during the day to cool the data centre.
According to Chien Lee-Feng, managing director of Google Taiwan, the site will be one of the most environmentally-friendly data centres in Asia.
“Part of this will come from our nighttime cooling and thermal energy storage system – not a revolutionary idea, but the first of its kind in our global data center fleet. But we’re also custom designing each element of the facility – adapting for the local environment some of the design features our engineers have developed and continue to innovate on in our data centers around the world that have enabled us to use 50% less energy than typical facilities.”
More examples of thermal storage cooling is provided by Data Centre Knowledge report, including i/o Data Center’s Phoenix ONE data centre, Digital Realty Trust’s carrier hotel at 350 East Cermak, National Petascale Computing Facility at the University of Illinois, and a new supercomputer data centre at the National Oceanographic and Atmospheric Administration.