Transformers: More Than Meets the Eye in Datacentre Grid Connection
Computer Weekly, Tuesday, September 15th, 2026
Super-grid transformers are emerging as the hidden linchpin for resilient, sustainable AI datacentre capacity.
As hyperscale AI racks demand more than 100kW each, power transformers have become strategic enablers rather than commodity hardware.
Super-grid transformers connect directly at 380kV or higher transmission voltages, reducing transformation stages, boosting capacity, and improving reliability while avoiding strain on local distribution networks.
A campus near Berlin deployed two 185MVA super-grid transformers on 50Hertz's 380kV network, offering 300MVA initially with a path to 500MVA and full 2N redundancy targeting five-nines availability.
Strong meshed grids with renewable contribution can make standby diesel generators optional, cutting embedded carbon and regulatory exposure.