"The expansion allows CDC to meet demand from existing customers for data centre facilities in New Zealand and represents an extension of CDC's existing secure co-location data centre ecosystem to New Zealand," it said.
Biggest investment
"In this way, CDC will continue to follow its strategy of providing highly secure, reliable and flexible data centre services to leading government and commercial clients across broader geographies."
Infratil acquired its stake in CDC – then called Canberra Data Centres – for $412 million in 2016. Back then it had about 30MW of capacity, most of which was leased to federal government agencies.
The investment was part of a strategic shift by Infratil toward bigger holdings in telecommunications and data connectivity.
In April, Infratil said CDC had a roadmap to develop its capacity to more than 230MW to meet growing demand from firms and governments for increasing volumes of data, and at increasing levels of security.
It ranked CDC as its biggest investment, at about 25 percent of the portfolio, ahead of its stakes in Vodafone NZ and Tilt Renewables at 17 percent each, and Trustpower at 16 per cent.