Low Power
Solar Power Resources for Designing PV Systems in Rural Computer Projects

There are two recent developments that have significantly lowered the cost of solar power systems for powering computer installations in remote or rural areas:
- The power consumption requirement of low-cost computers and peripherals has come down considerably.
- The cost of solar panels has dropped dramatically, with some panels selling in the US for as much at 70% less than typical 2008 prices.
If you are thinking about deploying computers in remote rural locations or in countries with erratic grid power, the cost of reliable, long-term, low-maintenance power has never been lower. To help you, we have developed these solar power resources ICT projects:
White Papers and How-to Guides:
- Solar Power for PC Deployments: Enabling ICT Beyond the Grid provides basic knowledge to help the reader prepare a budget for a solar deployment, and to be able to effectively communicate the requirements to an installer.
- Inveneo Solar Power Deployment Guide is a how-to guide to specify, design and build a small-scale self-contained solar power system, emphasizing a "hands-on" approach with step-by-step methods to designing and building truly practical solar systems.
- Off-Grid Solar Power Solutions Webinar is an interactive discussion of solar power options with Bernd Nordhausen of Intel and Bob Marsh of Inveneo that combines the two resources listed above
Insolation Maps:
Planet Earth
Central & North Africa
North-West Africa
North-East Africa
Southern Africa
Northern part of South America
Southern part of South America
Central America & Caribbean
All of Africa, insolation in kW/m2/day
Miscellaneous technical information:
Ohm's Law and Power tutorial
Grounding/Earthing#1
Grounding/Earthing#2
Batteries, how to estimate state of charge
Wire size tables for different system voltages
Power consumption of typical appliances and equipment (use with caution)
Sample Solar Panel data sheets:
Sunwize 130W poly-crystalline
Sharp 80W poly-crystalline
Sharp 115W-128W thin-film panels
SolarWorld 230W mono-crystalline for 24V or higher systems
Wayan Vota
InveneoWayan Vota is a technology expert focused on appropriate information and communication technologies (ICT) for rural and underserved areas of the developing world. He is a Senior Director at Inveneo and is the editor of ICTworks
ICTWorks Power Technical Manual
Andris Bjornson
Since graduating from Northwestern University with a Physics degree, I have helped build long-distance nonprofit WiFi networks as a volunteer in Nepal, managed communications-hardware deployments for the U.S. Department of State, created a high-volume image archive system for an A-list advertising photographer, and helped tell the story of landmine survivors through documentary multimedia. This multi-disciplinary career path has been my attempt to blend passions for technology, creativity, and global involvement. Outside of work, I am an avid photographer and I try to spend as much time as possible getting to the top of tall things by boot, bike, climbing harness, or ice axe.



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