Category Archives: Environment
idle power draw of modern Opteron CPUs
I’ve been curious for a while about how much power Opteron CPUs draw when idle, so I set aside a bit of time to do some measurements. I used a Supermicro 1U system with redundant power supply. The motherboard model … Continue reading
Posted in Environment, Sysadmin
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recycling a ton of old computing gear
We recycled at work this week – literally over a metric ton (estimated) of old servers. This is what about two thirds of that amount looked liked: Apologies for the low quality picture – I only had a crappy cell … Continue reading
Posted in Environment, Hardware, Sysadmin
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10 years of free public transportation in Hasselt
Carectomy has a nice writeup on 10 years of free public transportation in Hasselt, Belgium. I remember when this was introduced – most people wrote it off as a political stunt. It’s really nice to see that the project is … Continue reading
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optimizing a home office for energy consumption
Great article over at computerworld.com on reducing the energy consumption of a home office.
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rail
There is an interesting blog post at carectomy.com about the state of the US rail transportation system. The article mentions the “Passenger Rail Investment and Improvement Act” of 2007 (S.294) that cleared the Senate at the end of October with … Continue reading
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monitor power consumption
I got a ViewSonic VP2030b today, and given all the recent commotion about blackle.com, I figured I would verify the claims in Google’s blogpost. Description Brightness Power consumption Sleep mode (no signal, orange light) or switched ‘off’ with the front … Continue reading
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40% efficient solar cells
Scientists at a subsidiary of Boeing have published research on solar cells for electricity generation that are more than 40% effective. These are solar cells for use in concentrators, perhaps like the one in Seville, Spain, though that one of … Continue reading
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an inconvenient truth
Went to see Al Gore’s An Inconvenient truth last night. Highly recommended. I think the planet is in for major trouble – the bit about the ocean level rising is particularly disturbing… Check out the website, too, particularly the advice … Continue reading
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