My company, Hillrich Limited, has been marketing and deploying alternative energy systems in Nigeria since 1997. So I can comment on this area. The main problem with mass scale deployment of solar energy is the cost. Because of our climate, any meaningful purchase would be in the region of the higher figures that have been mentioned above. Right now, the industry has deployed street lights, small systems for health system refridgeration, water systems and of course small home lighting for remote areas, plus of course water heating systems in the Plateau area. Both most city dwellers who desire individual purchase are always asking to power air conditioners, freezers and so on, at which level the estimates soar so high tehy say solar does not work. Even the modest estimate of around $10,000 will triple by the time it gets to the end user because of freight and bank charges. Nothing used in the deployment of solar technology is made in Nigeria. Most of our suppliers and partners are British and American. You can buy from the Chinese, but you're only taking chances.