A fascinating presentation from ToughStuff International on their affordable solar powered energy solutions for poor consumers in the developing world.ToughStuff won a 2011 Ashden Award in recognition of its success in making small, reliable, solar-powered products available and affordable for off-grid users in Africa (you can read more here). (HT: Yakima).
I was particularly impressed by the "social entrepreneurship" dimension. It would be great to see this taken forward in rural areas in Zambia. Incidentally watching the above video reminded of the great need within Government for an "ideas champion" within the government (with a unit) that could pro-actively source these kinds "off the wall" ideas and see them tested. Large corporations have such "gurus", so do most governments in the developed world.