Opex · Operating Expenditure
Ongoing running costs such as power, water, staff and maintenance, expensed as incurred.
Current numbers
~$0.6B/yrenergy: largest controllable opex line in the 1 GW model — why the PPA is a financing precondition
25-60%power as a share of AI data center operating cost; the largest single opex line at scale
~$0.6B/yrenergy cost in the canonical 1 GW model — the single largest opex line