The transformer wall
AI data centres are being held up not by chips, and not by making electricity, but by the unglamorous kit that moves power around: transformers, switchgear and grid connections.
68%likely
Well sourced
Next check
Watching
Why it is different
Specifically the boring hardware, not generating the power, which is now the story everyone tells.
Why it matters
It puts a hard ceiling on how fast AI capacity can be built, no matter how much money is thrown at it.
Next check · 31 Oct 2026
On its next earnings call, does Microsoft again say AI capacity is limited by power and buildings rather than chip supply?
How we scored it ·
from how similar cases went
If right, how big5/5How overlooked3/5Upside vs downside3/5Source trust4/5Independent sources4/5
The exact wording we score
The binding constraint on US AI data-center buildout through 2028–29 is long-lead grid electrical gear and interconnection, not GPUs or generation.