Analysis
The numbers behind the plan
Dated, sourced analysis that feeds one step of the flow. Each piece ends where its numbers are used.
Build · cooling spec Is 45 °C coolant the end of chillers? A test in 16 cities Nvidia says chillers are needed maybe 1% of the year. We tested ten years of hourly weather in 16 European cities. 
Build · resilience OVHcloud Data Centre Fire: How Its Cheapest Design Lost Everything OVHcloud’s SBG2 fire traces back to its free-cooling design: the chimney that made it cheap left no sealed room for a gas system to work. 
Build · electrical 800V DC Power for 1 MW Server Racks: Copper, Safety, EU Rules At 1 MW a 54 V rack draws 18,519 A and an 800 V DC rack 1,250 A. Worked copper figures, EU rules, DC protection and hardware dates. 
Build · cooling High-Density Liquid Cooling: Direct-to-Chip vs Immersion A 132 kW AI rack needs about 191 L/min of water at a 10 K rise. Flow maths, ASHRAE water classes, PFAS risk, EU rules and vendors. 
Build · cooling Cold Aisle vs Hot Aisle Containment: Which Is Better for Data Center Cooling? Cold vs hot aisle containment compared on savings, retrofit and fire safety, with a worked case against Germany’s EnEfG PUE limits. 
Build · electrical Lithium-Ion vs. Lead-Acid Batteries: The Right Choice for Data Center VRLA or lithium batteries for a data centre UPS? Fire risk, floor space, battery life and adoption compared using vendor, Eurobat and Uptime data. 
Build · fit-out cabling Fibre Optic Infrastructure for Data Centres: Optics, Cabling and Testing Compare four 400G optics, work through a 120 m fibre channel, and specify connectors, routes and acceptance tests.