Where capital becomes compute.
AI data centres are purpose-built facilities that house dense clusters of accelerators, with power, cooling and networking designed for training and serving large models.
A build-out at historic scale involving hyperscalers, neoclouds, sovereign programmes, utilities and equipment makers. The constraint has moved from chips to power, land and grid connections.
Hyperscalers begin dedicated accelerator regions.
Accelerator supply becomes the constraint.
Interconnection queues lengthen in key markets.
Projects sized like power plants are announced.
Developers become energy developers.
Expect a sharper split between training and inference sites, more behind-the-meter generation and a growing policy debate over who pays for grid upgrades.
Qualcomm announced a multi-generation collaboration with Amazon on custom AI inference silicon and 1.6T optical connectivity on 8 September 2026. An SEC filing shows Amazon received a warrant for up to 25 million Qualcomm shares at $161.26, vesting in tranches tied to commercial arrangements and purchases up to a $60 billion cap.
PJM Interconnection, which serves 67 million people, filed an Interim Resource Adequacy Service with FERC on 13 August 2026 that would direct new data centres to their own back-up generation when supply runs short, alongside a large-load registry and a backstop procurement to cover a 6,831 MW shortfall. The independent market monitor has protested both filings.
High-NA EUV's optics halve the exposure field, forcing large AI dies to be stitched from two exposures at a heavy throughput cost. On 8 September 2026 the leading-edge industry aligned on a move to 12-inch masks, with TSMC targeting High-NA in high-volume manufacturing from 2030 and Samsung planning High-NA for DRAM by 2028.
Fervo Energy's 396 MW geothermal PPA with Google (1 September) and Google's 22-year deal for up to 50% of Fortum's Loviisa nuclear output (9 September) show hyperscalers paying to keep or build clean-firm capacity, with deals now deciding whether existing plants survive past 2030.
EIA's September Short-Term Energy Outlook projects US generation rising 2.2% to a record 4,368 billion kWh in 2026 and a further 1.7% in 2027, with the West South Central region the largest contributor despite the Texas pause. EIA cut its 2027 Texas load-growth forecast from 14% to 6% after Governor Abbott ordered an audit of every data centre in ERCOT's queue.
ERCOT's large-load queue has reached roughly 470 GW of requests, about 90% tied to data centres, against 9 GW approved and under 4 GW actually drawing power. Interconnection, not chips, is now the constraint on AI.
A five-item daily brief: what happened, why it matters and what to watch. Written by the desk, verified by editors.
