[Here is an excellent web site and presentation on building solar powered data centers and wide area WiFi networks.
Although primarily aimed at the developing world, many of these solutions can be equally applied to the developed world. One of the big challenges of large data centers is achieving low PUEs when the data center is not fully occupied. Because much of the infrastructure like CRACs, power systems, etc have to be sized for the fully loaded facility, the overall efficiency of a data center remains low when it is not fully populated with computer equipment. Building many smaller solar power only facilities where data and computation is moved around from site to site depending on the availability of power significantly improves PUE and more importantly virtually eliminates CO2 – BSA]
http://www.green-wifi.org/
Green WiFi is committed to providing solar powered access to global information and educational resources for developing regions and K-12 school children striving for knowledge in a digitally divided world. There are approximately 3 billion people under the age of 15 living in developing nations. 42 percent of the developing world's population is below the age of 15. Green WiFi was founded on the principle that the welfare of our world is dependent, in large part, on providing these children with free and open access to the world's information.
As business people, we recognize the inherent infrastructure and associated cost challenges of providing free and ubiquitous internet access to developing nations. This is why Green WiFi has developed a WiFi solution that leverages low cost components, the latest advancements in solar power technologies, open source software and Java to deliver a self sustaining, self healing, WiFi grid network solution that is cost effective and easy to deploy.
Why Green WiFi? A number of entities focus on addressing the digital divide by providing internet access to developing areas. Green WiFi addresses one of the biggest barriers to success: the lack of reliable electricity in developing areas required to power the network. Green WiFi has developed a low cost, solar-powered, standardized WiFi access solution that runs out-of-the-box with no systems integration or power requirements. All that is required is a single source of broadband access. Green WiFi nodes can then be deployed on rooftops to form a self-healing network that hops the source signal over a virtual 802.11b/g grid. Because these nodes require no fixed installation or power tie-ins, these nodes can form an unplanned, mobile grid that can grow or be relocated as needed. Green WiFi aims to complement and extend the power and promise of initiatives such as the UN/MIT One Laptop Per Child (OLPC) project, Intel's World Ahead Program and other NGO efforts dedicated to providing affordable computing capabilities to developing areas by providing critical last mile access; last mile internet access with nothing more than a single broadband internet connection, rooftops and the sun.
Green Cloud Computing Centres and Public Private Partnerships
http://www.ptc.org/ptc11/?page_id=1410&pid=81
------
Green Internet Consultant. Practical solutions to reducing GHG emissions such as free broadband and electric highways. http://green-broadband.blogspot.com/
email: Bill.St.Arnaud@gmail.com
Bill@St-arnaud.org
twitter: BillStArnaud
blog: http://billstarnaud.blogspot.com/
skype: Pocketpro
This blog is about using ICTs to develop climate change preparedness solutions built around Energy Internet and autonomous eVehicles
Energy Internet and eVehicles Overview
Governments around the world are wrestling with the challenge of how to prepare society for inevitable climate change. To date most people have been focused on how to reduce Green House Gas emissions, but now there is growing recognition that regardless of what we do to mitigate against climate change the planet is going to be significantly warmer in the coming years with all the attendant problems of more frequent droughts, flooding, sever storms, etc. As such we need to invest in solutions that provide a more robust and resilient infrastructure to withstand this environmental onslaught especially for our electrical and telecommunications systems and at the same time reduce our carbon footprint.
Using autonomous eVehicles for Renewable Energy Transportation and Distribution: http://goo.gl/bXO6x and http://goo.gl/UDz37
Free High Speed Internet to the Home or School Integrated with solar roof top: http://goo.gl/wGjVG
High level architecture of Internet Networks to survive Climate Change: https://goo.gl/24SiUP
Architecture and routing protocols for Energy Internet: http://goo.gl/niWy1g
How to use Green Bond Funds to underwrite costs of new network and energy infrastructure: https://goo.gl/74Bptd