Liquid cooling was once a staple of large-scale computing, but has largely been replaced by air cooling. We identified several efforts to bring liquid cooling to the server world in our first version of this post in 2012 and have seen continuous progress since. Here is the latest news.
We've been tracking the growth in mega-datacenters since 2009. These faculties feature technical and operational innovation that has overturned previous notions of limits on energy efficiency. But does the focus on efficiency obscure an acceleration in ICT energy and water consumption and in CO2e production? While mega-data center operators are claiming exceptional power usage effectiveness (PUE) ratios, we're still talking about facilities that consume 20-200 MW apiece and emit a considerable carbon footprint unless powered by renewable energy. Here's our most look recent mega-datacenter issues, including new statistics that suggest the mega-datacenter boom will cause a decrease in the total number of facilities.
Supercomputer manufacturers have always vied to build the most powerful machine. Recently, they have sought to increase energy efficiency, as well. Yet innovation appears to be slowing. The most recent ranking still shows the top performer to be China's Tianhe-2, a position it obtained in June 2013. (Tianhe translates as "Milky Way" in English.) An american supercomputer installed in Switzerland is the most energy-effieicnt of the Top 10 machines.
Government entities have an important role to play in encouraging sustainable ICT across all industries. Effective leadership requires internal implementation, as well. The tag at the top of this post - government - helps you easily locate posts containing opportunities for and applications of Green ICT in government operations. (Green ICT in public education is found through the education tag.) Our latest update to this post is the disappointing news about New Zealand's decline in ICT sustainability in government.
The Australian Government ICT Sustainability Plan 2010-2015 covers a wide range of Green ICT practices and should be considered by other government entities looking to adopt Green ICT practices. We will periodically look at various elements of the Australia's plan - first up are the six components of its ICT equipment procurement plan.
We've covered technology to reduce paper use when printing. What about reducing ink use? A high school student's study found that his school could save $21,000/year by switching typefaces...and the United States government could save $234 million!
Hong Kong's Green ICT Awards started in 2011, making them the oldest ongoing Green ICT recognition program* in the Asia-Pacific region. The roster annual winners illustrate the diverse nature of the area's ICT-savvy users and their Green ICT practices.
The NCAR-Wyoming Supercomputing Center (NWSC) in Wyoming "provides advanced computing services to scientists studying a broad range of disciplines, including weather, climate, oceanography, air pollution, space weather, computational science, energy production, and carbon sequestration. It also houses a landmark data storage and archival facility that will hold, among other scientific data, unique historical climate records." It has also become of the focus our largest Twitter discussion of the 2013.
City governments can show Green ICT leadership. Paul Kronberger, CIO of Madison (WI-USA), a city of 270,000 residents, tells me the municipality has taken these steps to improve the sustainability of its own operations.
It is easier to avoid controversy in the first place than extract oneself once one has invited it. Apple is finding that its decision to pull out of EPEAT, as described below, continues to dog the company even though Apple had quickly reversed that stance.