[Foundation-l] WMF-projects: Carbon neutral/low/aware website?

Tim Starling tstarling at wikimedia.org
Fri Jun 8 16:08:53 UTC 2007

Walter Vermeir wrote:
> Hi all,
> I noticed a logo for "Carbon Neutral website" on a wiki;
> http://www.wikihow.com/wikiHow:Carbon-Neutral
> The concept is to be aware of the carbon production related to the
> operation of a website/organization and to try to keep the production
> as low as possible by using energy efficient computers and
> environmental awareness by people working for the organisation.

According to


which is somewhat out of date, we use about 45kW of electricity
continuously at our Florida colo. According to the 1999 figures here:


the South Atlantic region of the US generates CO2 at a rate of 1.342
lb/kWh, so that works out to about 20 tonnes of CO2 per month.

Some carbon offset prices:


If we assume a mid-range carbon offset price of $10 per tonne, then that
would be $200 per month. This is for the Florida colo alone, and it
doesn't include sq31-50 or the new 2x4 core apaches.

I believe the power itself costs quite a bit more than that, which is why
we carefully consider the energy efficiency of bulk server purchases.

-- Tim Starling

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