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Sayaka Brennan
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Sayaka Brennan

Datacenters & Infrastructure

Sayaka Brennan reports on the buildings that make AI possible. She writes about datacenters from Reykjavík, where she also runs a quarterly newsletter on grid economics. Has toured more than forty datacenters and broken into none of them.

7 articles published Reykjavík, Iceland
  • liquid cooling (D2C, immersion) at hyperscaler scale
  • PUE, WUE, and the metrics that don't capture what they should
  • grid interconnect timelines and substation politics
  • modular and edge datacenter buildouts
  • the arms race between latency, power, and water

Latest from this reporter

Cutaway rendering of a prefabricated modular data center unit showing server racks, cooling infrastructure, and power distribution systems packed into a self-contained enclosure. Hardware · Datacentres & Infrastructure

Modular Data Centers Rewrite Compute Infrastructure Rules

Factory-built server enclosures, from shipping-container racks to 1,000-megawatt campuses, are slashing build times and shifting how data centers meet rising AI demand.

May 13, 2026 · 9 min
AWS modular data center design showing prefabricated electrical and cooling infrastructure components for AI workloads Datacenters & Infrastructure · Modular Buildouts

Factory-Made Data Centres Are Now Delivered by Truck

Modular and edge deployments have crossed from experiment to industrial programme as AI infrastructure spending heads toward $1.37 trillion this year, refactoring the supply chain around speed, not scale.

May 11, 2026 · 8 min
Cutaway rendering of a prefabricated modular data centre unit showing server racks, integrated cooling infrastructure, power distribution, and structural steel frame within a standard shipping-container form factor. Datacenters & Infrastructure · Modular Buildouts

Modular Data Centers Reshape the Edge One Factory-Built Skid at a Time

Hyperscale campuses still grab headlines, but the real edge computing buildout in 2026 is factory-based, as modular data halls roll off production lines and ship directly to urban substations, car parks, and rooftops.

May 11, 2026 · 9 min
Load Interconnection Queues: The Key to Data Center Growth Datacenters · Infrastructure

The 220-GW Grid Queue Is Datacentres' New Bottleneck

From Virginia exurbs to West Texas, the grid interconnection queue determines where datacentre compute lands and who pays for new substations, with FERC's June 2026 rule set to rewrite the rules.

May 9, 2026 · 10 min