Supercomputer manufacturers have always vied to build the most powerful machine. Now, they routinely increase energy efficiency, as well. The most recent addition to this ongoing article looks at the current top performer, China's Tianhe-2.
We first noted the potential of "energy harvesting" to power devices without conventional batteries or grid connections a couple of years ago. The latest research shows the "Ambient Energy Harvesters" (AEH) market growing at a CAGR of 17%. The latest technology harvests energy from microwave signals.
Apple has been making in big investment over the best couple of years to make its newest data center 100% powered by renewable energy. It has how announced a similar objective for a new US-based manufacturing facility in Arizona. This should contribute to reducing the embodied CO2e in Apple's products.
Liquid cooling was once a staple of large-scale computing, but has largely been replaced by air cooling.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 a year and a half ago. Here is an update that includes some new American technology.
Global ICT consumes ~8% of the world's electricity. How does that fit into the big picture of global energy consumption? And is that good or bad for the planet?
We have reported estimates for ICT electricity consumption over Vertatique's lifespan ranging from 2% to 10%. I am comfortable using ~8%, based on our most recent analysis.
Specialty metals recycler Umicore uses grams per tonne of gold to illustrate the potential for urban mining of e-waste.
|Ore||PC Circuit Boards||Cell Phones|
|~5 g/t Au||200-250 g/t Au||300-350 g/t Au|
There are compelling reasons why the global ICT for Development (ICT4D) movement could benefit by embracing Sustainable ICT (Green ICT). A look at some of the purported "best" practices and other resources for ICT4D reveals little movement in this direction.
I took a look at five resources recently promoted on Twitter as big-picture looks at #ICT4D topics. Here's who is NOT talking about Green ICT.
The Digital Power Group said in August 2013 that global ICT consumes ~1,500 TWh of electricity annually, ~10% of the world's annual generation. This is the much greater that the 2% number commonly cited six years ago when Vertatique was launched. How did we get from there to here? And, is 10% a credible number?
This is not the first time I have seen the 10% number. It was cited in the promotion for a 2009 green communications conference in Germany. I've asked the source of both these 10% numbers for detailed breakdowns. Let's take a look at what we already know until we hear back.
Information and Communications Technology for Development - ICT4D - has become an explosive force in the developing economies. Much ICT4D is inherently more sustainable than its counterparts in developed countries. This could deteriorate unless Green ICT becomes an explicit part of ICT4D. Now is the time to make that happen.
Fairphone positions its first product as "A seriously cool smartphone that puts social values first." The Netherlands-based company's phone addresses two important Green ICT issues for mobile devices: conflict minerals and e-waste.