The first phase of the campus, which would be approximately 60MW, is slated to open in late 2021 to support customer demand.
A statement from AirTrunk, a Japanese company, said the TOK1 would be among the biggest data centres in Asia and scalable to more than 300MW giving customers the ability to support their growing capacity needs in Japan.
AirTrunk founder and chief executive Robin Khuda said: “Japan is a highly developed market with strong international connectivity, underpinning its position as a technology and data centre hub in Asia.
“TOK1 is part of our ongoing commitment to deliver secure, reliable, scalable, and cost-effective infrastructure for our cloud customers in key Asia-Pacific markets.
"We’re ensuring operational excellence and a consistent experience for our customers across our data centre platform.”
AirTrunk's Japan chief Nori Matsushita said the local team would leverage AirTrunk’s global data centre expertise and regional standards gained from its hyperscale data centre developments in Sydney, Melbourne, Singapore, and Hong Kong.
“AirTrunk’s unique construction methodologies, safety track record, and commitment to providing an efficient and sustainable digital ecosystem will be key to our success in Japan," he said.
"We look forward to working with our partners to deliver this enormous data centre in Inzai.”
The company said TOK1 would include seven buildings on more than 13 hectares. Strategically located in Inzai’s data centre hub, the carrier neutral data centre will provide strong international and domestic connectivity with multiple fibre paths to the campus.
AirTrunk said it had secured high voltage power to the site, with dedicated 66kV substations. It claims efficient design will result in an ultra-low power usage effectiveness of 1.15, delivering significant energy efficiency.
AirTrunk already has hyperscale data centres in Sydney West (130MW), Sydney North (110MW), Melbourne (130MW), Singapore (60MW) and Hong Kong (20MW).