Sun Eco Rider meets Blackbox

Freitag Jun 22, 2007

Little Shrek meets the dark lord:

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Posted at 10:02PM Jun 22, 2007 by rolfk in Eco
Tags: blackbox eco ecorider ecotour

Watch out for the Sun Eco Rider hybrid bike

Freitag Jun 22, 2007

Eco Responsibility is one of Sun's top priorities. To spread the word about our story, we are touring all over Germany this summer. The tour vehicle: A hybrid bike, the Sun Eco Rider. Typically moved forward on muscle power alone with support from an electric motor when hills get steep.

www.flickr.com More Flickr photos tagged with ecorider

More information on the tour and an ongoing blog about the tour, people and places, not to forget eco topics can be found here: Im Strom der Zeit.

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Posted at 08:55AM Jun 22, 2007 by rolfk in Eco
Tags: eco ecorider ecotour

Eco friendly SPAM protection

Dienstag Mai 08, 2007

What draws more energy: Filtering 1000 SPAM Mails or doing one Google Search Request? - Surprise: It's the Google Search Request with twice as much energy.

You can run and cool a Sun Fire T2000 server for roughly 1.5 hours with 1KWh electral power. Symantec Brightmail filters 500.000 eMails during that timeframe (94 per second).

With 1KWh electrical energy, Google only is able do perform 250 Search Requests (4Wh per request).

So - Security is cheap and environment-friendly! To save mailboxes from SPAM and the environment from unnecessary CO2, DNS, Symantec and Sun did team up in Germany to deliver the most efficient and eco friendly SPAM filter solution on earth. That's what I call a cool offering!

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Posted at 10:57PM Mai 08, 2007 by rolfk in Eco
Tags: eco spam t2000

Your CO2 footprint when using the internet

Freitag Mai 04, 2007

How much CO2 does a Google Search produce? Servers need electrical power. According to recent studies, all servers in the US accounted for more than 1.2% of the nationwide annual electrical power consumption, more than all TV sets combined. And, according to Netcraft, the number of internet hosts has doubled since then.

The majority of electrical power is created by burning fossil fuels like coal, gas or oil, producing carbon dioxide CO2 ad global warming. So how much CO2 does one Google search produce? One EBAY auction or a SecondLife avatar? Or one blog on blogs.sun.com?

For a keynote at the german EBAY developer's conference I calculated the following numbers and compared them to the CO2 emission of a Toyota Prius hybrid car and a human being:

My calculations and the sources for the number of servers etc. can be found in my presentation (in german language, but the numbers should speak for themselves). Download ODF here or PDF here. Or view online the Flash presentation (created with StarOffice Flas Export) below:

As an example, this is how I calculated the surpisingly high blog post on blogs.sun.com number:

We are hosting 66183 blogs in 3 years, running on two T2000 (the best servers you can get when it comes to power efficiency).

A pair of Sun Fire T2000 servers draws 2*320Watts. Double that number for cooling and infrastructure, so you need 33628KWh in three years. That's 0.5KWh for every blog! One KWh electral power created in a coal power plant creates 1700 grams of CO2 - so the global warming effect of this blog is comparable to a runner running 21 kilometers (or sitting in front of his computer for one whole day).

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Posted at 08:29PM Mai 04, 2007 by rolfk in Eco
Tags: eco web20