DayOne

Tracked AI data center portfolio for DayOne: live capex history, supplier exposure, and project map.

Projects

Frequently asked questions

How many data centers does DayOne have?
Data Center Index tracks 2 data center campuses with DayOne named as the developer or the tenant. Coverage is named campuses with a published source, not every building.
How much data center capacity does DayOne have?
688 MW across 2 tracked campuses, counting operating and pipeline sites together. Of the 2 DayOne campuses with a capacity figure, 0 are filed, 1 stated and 1 estimated. Filed means a permit, utility filing or SEC filing states the figure. Stated means the developer or the press states it. Estimated means we modeled or inferred it, and the site marks it "est.".
Where does DayOne build data centers?
Tracked DayOne campuses sit in 1 market: Finland (2). The figure in brackets is how many campuses Data Center Index tracks in each.
What is the largest DayOne data center?
DayOne Nurmijärvi Data Center Campus in Finland is the largest tracked DayOne campus at 560 MW, currently announced. That capacity is an estimate. We modeled or inferred it, and no source states it.