NESO (National Energy System Operator) began issuing the first transmission connection offers under the reformed UK queue this week, with Gate 2 Phase 1 opening against an applications book that exceeds Britain's 45 GW national peak . The framework was set on Wednesday 11 March, when energy minister Michael Shanks and AI minister Kanishka Narayan confirmed that AI Growth Zones would receive priority access, 'significant discounts on electricity bills' and the right for developers to build their own high-voltage lines and substations 1. The Gate 2 issuance turns those concessions from a policy paper into a queue place.
OpenAI's quantification of UK industrial electricity at four times US and Nordic rates sets the cost gap Gate 2 alone cannot close, and which has driven greenfield siting decisions to Texas and Finland since 2024. The new electricity discount is the concession that addresses it directly, and the self-build right for high-voltage lines is what makes the discount usable: an operator that can construct its own substation does not need to wait for NESO's distribution allocation to commission the load.
The demand-side application volume that produced the queue grew 460% in six months to June 2025, and the worst waits reached 15 years before the reforms 2. Gate 2 Phase 1 sets the test of whether the financial-deposit reforms cleared the speculative-application backlog NESO had identified as the structural cause. If the offers being issued this month match the pre-Gate 2 forward demand, the reform has worked at the procedural layer. The harder test is whether the AI Growth Zone discount has rebuilt the UK's economic case enough to claw back any of the Cobalt Park-style sites OpenAI has now paused . The earliest signal will come from the second tranche of offers and from which AI Growth Zone operators show up at NESO's connection desk in June.
