First up today is about the Utah data center that’s being green by using a massive evaporative cooler and cooling towers. While this approach definitely saves money and power, it also evaporates one of the scarcest resources we have, fresh water, proving that “green” is a relative term.
Next up is the news about the new Bloom Energy Server fuel cell technology. There is an impressive list of companies testing these, including some of the biggest data center operaters, such as Google. The intriguing thing for me isn’t the massive installations, it’s the tiny home sized units in the offing. This might make these viable for even the tiniest installations.
From the “blowing your own horn” file: I’ve been a critic of the PUE (power usage effectiveness) data center efficiency metric, mostly for its (mis)use as marketing hype but last night I broke down and calculated PUE on one of my micro data center installations. This installation is in unimproved space, supports a heavily loaded cloud computing cluster and a number of co-located servers, and features green DC power, reuse of hot exhaust air, and free air cooling (when I promote data center DC power and free air cooling, I practice what I preach).
So, how did I do? Calculated PUE is 1.22 and that’s with everything doing REAL work (no fudging with idle servers here). Who says only Google can do this right?
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