Data centres come in a variety of sizes—from those measuring some hundred thousand square feet in area to massive behemoths that consume enough electricity to power a small town. Ever wondered which ones are the biggest and how big they actually are? Let’s find out!
 Switch TAHOE RENO, United States
Located near the famous Tesla Gigafactory in Northern Nevada, TAHOE RENO is designed by Switch—one of the best builders of highly rated data centers—and is built on more than 260 patent and patent-pending claims. If you’re wondering how big, just know that the construction is set to provide over 7.2 million square feet of data centre space exceeding Tier IV standards, which means 2N+1 fully redundant infrastructure and 99.995% uptime per year. The centre will be powered by 100% renewable energy, making it not only the largest but also the greenest data centre in the world.
 Range International Information Hub, China
An undertaking by the Range International Information Group (RIIG), the Range International Information Hub, located in the Langfang region of China, has an operating area of 6.3 million square feet, covering a land area of 331 acres. After its completion, few data centres have come close to providing a similar level of infrastructure. Supportive government policy and a bucket-load of capital assistance has helped RIIG build a next-gen data centre which is set to revolutionise cloud computing services by seamlessly integrating them with the growing Internet of Things platform.
 Switch SuperNAP, United States
Before the Range International Information Hub was complete, the title for the world’s largest data centre was held for a while by Switch SuperNAP, located in the US city of Las Vegas. With over 2.4 million square feet of premium Tier V data centre space, this Las Vegas centre features Switch’s patented SUPERLOOP technology, which strategically connects it with the new one in Reno, as well as two others in Los Angeles and San Francisco, California, creating the first ever data center network geographically separated over 500 miles.
 DuPont Fabros Technology, United States
The DuPont Fabros Technology campus is a data centre agglomerate made of seven buildings boasting a total area of 2.16 million square feet. Located in Ashburn, Virginia, the collection of centres are built on 159.7 acres with enough computing power to produce over 207.9 MW of power. Each of the centres are Tier III Standard and provide state of the art infrastructure and amenities. The centres have a medium voltage electrical distribution system and an isolated parallel uninterruptible power supply topology—talk about electrical reliability.
 Utah Data Centre, United States
Located at Camp Williams near Bluffdale, Utah, not many know this massive data centre by its official name, the ‘Intelligence Community Comprehensive National Cybersecurity Initiative Data Centre for the US Intelligence Community’ (Phew!). With an estimated construction cost of over US $1.5 billion, the centre has a storage capacity of anything between 3 and 12 exabytes, which can be possibly extended in the future. This centre was in the news recently, though not for the right reasons: during its construction, several power surges brought systems down for over 13 months, damaging over US $1 million worth of equipment in the process.