The grid has voted. The build-out hasn't stopped.
First two figures: Ireland. Third figure: Great Britain, Ofgem, July 2026.
The Local Cost & The Pricing Failure
The local cost is concrete. An Coimisiún Pleanála has overturned permission for the €1.5bn data centre in Killala, Co Mayo: about 300 construction jobs, but only 30–35 permanent roles. Ireland now lets new data centres and expansions proceed only if they bring their own power: on-site generation, or contracts for new, largely renewable supply nearby.
This is not an anti-technology mood. It is a pricing failure. We budget GPUs in depreciation cycles of a few years and socialise their power bill over decades. Residual value means little when the grid connection and community consent are both borrowed. Reliability is a social contract before it is an uptime SLA.
Case Study: 23,040 GPUs. A Grid Date in the 2030s.
Microsoft has reportedly withdrawn from Nscale's planned AI data centre in Loughton, Essex, first reported by The Telegraph. Microsoft did not comment; Nscale says the project is going ahead. The site was designed for 50 MW, expandable to 90 MW, with 23,040 Nvidia GB300 GPUs and first chips expected in early 2027. According to The Guardian, UK Power Networks warned that the required capacity might not be available until the 2030s.
My view: in AI infrastructure, the scarce input is no longer the chip. It is the connection. Silicon depreciates on a calendar. Grid capacity arrives on its own schedule. A GPU waiting years for a socket is not infrastructure. It is inventory.
Ofgem reports that demand connection applications in Great Britain rose from 41 GW to 125 GW in under a year, with data centres accounting for at least 80 GW. A queue that size does not show what will be built. It shows what has been promised.
- Tech Insider: 61% of Irish voters want data centres halted (27 Oct 2026), on the Irish Examiner editorial, the Ipsos B&A poll and Killala
- CSO: Data Centres Metered Electricity Consumption 2025
- The Register: Microsoft reportedly pulls out of Nscale's Loughton site
- Ofgem: tackling speculative data centre projects (29 Jul 2026)