A 2010 version of this post was titled "No One Can Agree on Typical PUE". I wrote, "As more data centers measure their PUE, more and more ask what is typical? The industry does not seem to agree, so a wide range of numbers are out there." I updated the post in 2012 with the latest data, concluding that most data centers still appear to be operating above a PUE of 2.0."
I put the question to Vertatique's global Green ICT community in August 2013 via a tweet: "After years of #GreenICT, is there evidence that most #datacenters now operate below PUE 2.0?". This was one of our most-retweeted, but no one came forward with new evidence. Some replied in the emphatic negative. Hereis the 2012 analysis, which still stands.
Apple Does the Right Thing!
Apple has reversed its EPEAT position in response to feedback like this. VP Bob Mansfield writes, "I recognize that this was a mistake. Starting today, all eligible Apple products are back on EPEAT." Read Mansfield's entire letter.
"Come On, Steve, You Can Do Better" was the title of a post I wrote almost two years ago, questioning why Apple was such a laggard on environmental issues. Since then, Apple has made considerable progress, which we have consistently recognized in our posts. Two issues still tarnish the company's attempt to polish a greener Apple: its off-shore manufacturing and its decision this week to pull its products from EPEAT certification.
How much electricity do the worlds iPads consume? The Electric Power Research Institute (EPRI) came up with these intriguing statistics and comparisons.
The Bloom Energy Server is a "distributed power generator" that uses fuel cells to convert air and natural gas into electricity. We wrote in 2010 that the 'Bloom Boxes' are "already being used by ICT companies, but not for for mission-critical ICT applications." Now we can report that they are used for applications ranging from television to telecom. Apple and eBay appear to be the most recent ICT customers.
Vertatique posts have covered the attraction of locations that offer renewable energy, typically a combination of hydroelectric power and free air cooling from a temperate/cold climate. But about data centers in sunny climates? The question provided a good opportunity to check in on solar photovoltaic electricity (solar PV) back in 2009.
We've covered the appeal of hydroelectric power for ICT since 2009, when we noted the attraction of low-cost, low-carbon hydro in the United States' Columbia River Valley and other locations. We continue to see more hydro-powered ICT emerge around the world.
Facebook sited a data center in Lulea, Sweden based on plentiful hydro for power and Arctic air for cooling.
We're increasingly seeing data centers promote, and customers respond to, Green ICT features. Here are some customer perspectives and the results of a industry survey that reveals geographical differences.
Apple published the environmental specs for the new MacBook Pro with the product release, today.
British mobile services provider O2 has produced statistics about the carbon footprint of individual activities such as a phone call and a data download. This came from the company's effort to become the first carrier to independently certify its carbon footprint. Information like this is important to organizations wishing to account for emissions from their cloud use in carbon audits.
Evidence of Green ICT on the information and telecommunications industries is everywhere. Gear is becoming more energy efficient, renewable energy is increasingly in favor, and product content and lifecycles are starting to be scrutinized. So what defines "eco" gear in 2012?