May 20, 2026
Too hot to compute?
Cooling copper plates could slash data center energy use by 90%
Miracle cooling trick has commenters cheering, nitpicking, and yelling “show us the math”
TLDR: Scientists say new copper cooling plates could massively cut the electricity data centers waste on keeping chips from overheating, which matters because AI facilities are becoming enormous power hogs. Commenters weren’t ready to celebrate, though: they argued over headline hype, real-world savings, dirt buildup, and whether “could” means this is news or just wishful thinking.
The big promise here is wildly dramatic: researchers say new 3D-printed copper cooling plates could cut data-center cooling power by more than 90%. Since cooling eats up about 30% of a data center’s electricity, that would be a huge deal in a world where artificial intelligence centers are sucking down power like there’s no tomorrow. The article leans hard into the scale of the problem — one super-powerful chip can use as much electricity as a home in a day, and giant facilities can throw off absurd amounts of heat. In other words: yes, the machines making your chatbot replies are apparently trying to become tiny suns.
But the real action is in the comments, where the crowd instantly split into Team "game changer" and Team "nice headline, where’s the catch?" The most upvoted mood is classic internet skepticism. One commenter did the math and called out the headline for sounding bigger than the actual result: if cooling is 30% of the total, and you cut that by 90%, the full-site savings are more like 27%, not some magical near-total energy collapse. Another demanded we ban headlines with the word “could”, basically declaring conjecture illegal. And then came the practical worriers: copper is pricey, the manufacturing sounds delicate, and someone immediately asked what happens when the tiny patterned surface gets dirty — the engineering equivalent of “works great until real life shows up.” Even the source got fact-checked, with one user dropping the original paper like a receipt. It’s classic tech-thread energy: breakthrough meets buzzkill, with a side of spreadsheet fury.
Key Points
- •The article states that data centers consumed 485 TWh of electricity in 2025, with about 30% used for cooling.
- •The reported cooling technology from the University of Illinois Urbana-Champaign combines topology optimization and 3D printing to produce pure copper cold plates.
- •According to the researchers, deploying the technology across a data center could reduce cooling-related electricity use from about 30% of total power to 1.1%.
- •The article uses a 1,200-watt NVIDIA GB200 chip and xAI’s 220,000-GPU Colossus 1 facility to illustrate the scale of heat produced by AI hardware.
- •The article contrasts traditional air cooling with liquid direct-to-chip cooling and says conventional commercial cold plates are often limited by simple geometries and manufacturing constraints.