Insights
Notes from the engineers doing the work.
Practical articles on power and cooling for mission critical facilities, from high-density and AI data halls to the plants that keep them running.
Latest
Power
UPS Redundancy Explained: From N+1 to Distributed Redundant, and What AI Loads Change
Brian T. Soucy, P.E., ATD · October 24, 2026 · 8 min read
Redundancy is often the first decision in a data center power design, and one of the most expensive. Here is how the common topologies compare, and why AI training loads are adding new questions.
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Liquid cooling
Beyond 100 kW: What Liquid Cooling Takes in a Real Facility
Ernest M. Domingue, P.E. and John Lane, P.E. · October 24, 2026 · 6 min read
Rack densities have passed what air can carry. The hard part now is not choosing liquid; it is fitting a liquid loop into a building that has to keep running.
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