Guides
Short, practical guides for people who run or build small and mid-size data centers. Each one answers a single question, shows the arithmetic, and ends with a sheet or a calculator you can use straight away.
Rack power capacity planning with a spreadsheet and the 80 % rule
How to plan rack power for a 1–50 rack room: nameplate vs measured watts, derating, A/B feeds, breaker and PDU limits, and the checks that catch the usual mistakes.
UPS failure impact analysis in 20 minutes
Fail a UPS on paper before it fails in the room: what goes dark, what is left on one feed, which services stop and what overloads. A 20-minute method.
DCIM for a small server room: what you need and what it should cost
A small server room needs five things from DCIM, not fifty. What they are, what to skip, and what a lightweight DCIM should cost at 5 to 50 racks.
Tokens per kWh: the one metric for an AI room
Tokens per kWh ties LLM inference output to the power bill. Convert joules per token and tokens per watt, get cost per 1M tokens, and pick a boundary.
One Excel file. Your room in 3D.
Fill in the Devices sheet and send it with your walkthrough request; we import it on the call. What each sheet does