Data Center Cooling Methods Explained (Air, Liquid & Immersion Cooling)
The short version: MEP Academy breaks down air, liquid, and immersion cooling engineering — useful technical context for the resource fights these choices trigger in real communities.
Our Take
MEP Academy's rundown of cooling methods is solid engineering education, and credit to them for making dense technical material watchable. But every kilowatt of heat these systems remove has to come from somewhere, and every gallon of water immersion or liquid cooling uses has to come from somewhere too. That's the part the industry keeps upstream of the conversation, in permitting offices and utility filings most residents never see.
The video notes racks pushing 50, 80, even 100 kilowatts — density numbers that used to be exotic and are now routine for AI clusters. That trajectory is exactly why cooling method matters to you even if you'll never rack a server: air-cooled halls sprawl and pull grid power for chillers around the clock, while liquid and immersion setups often shift the burden onto municipal water systems, sometimes drawing from the same aquifers and treatment plants serving nearby homes. Neither option is free, and the bill routinely lands on local ratepayers and water customers, not the hyperscalers.
If you want to see which cooling approach is showing up in your backyard and what water and power commitments local officials signed off on, check our facility map. And if a project's headed for a vote near you, our take-action page has tools to get ahead of it.
This is GridWatch the USA’s original commentary. The video above is the work of MEP Academy, published on YouTube — full credit to the creator.