An AI data centre is only as deliverable as the power behind it. We offer sites with secured tenure, grid connection and access to power for operators who build their own facilities — backed by access to more than 5 GW through our network.
GPU campuses consume power at a scale that legacy data centres never approached. The constraint that decides where AI can actually be built is no longer land or capital — it is abundant, affordable, interconnected electricity, available on a timeline that matches demand.
Interconnection queues now run for years in most markets. Securing a substation position, a multi-year supply framework, and the transmission to carry it is slow, relationship-driven work — and it is the step that kills most projects before they start.
Castellan does this work first. We bring power-secured, interconnected land to the table — the scarcest input in the entire stack — so tenants and partners can move at the speed AI demands.
"Powered land" is land where the power is not a hope — it is secured with the site. Every Castellan site is assembled around the electricity first.
Castellan draws on the competencies and experience of its sister company, the Bitkern Group — in energy, powered land, and the operation of large-scale digital infrastructure.
Securing power has been core to that work for a decade. Castellan applies the same capability to the defining compute demand of this one.
That is why Castellan starts from a position most newcomers cannot reach: access to power measured in gigawatts, with the supply relationships to back it.
Take the site and build it yourself, contract us to design and build it for you, or lease a finished facility as a powered shell or turnkey data centre. Talk to us about siting and capacity — from first-site availability to the wider pipeline.