This is an idea that should catch on, and I could see applying the prinicple in other ways.
SUNNY countries are often poor. A shame, then, that solar power is still quite expensive. But it is getting cheaper by the day, and is now cheap enough to be competitive with other forms of energy in places that are not attached to electricity grids. Since 1.6 billion people are still in that unfortunate position, a large potential market for solar energy now exists. The problem is that although sunlight is free, a lot of those 1.6 billion people still cannot afford the cost of the kit in one go, and no one will lend them the money to do so.
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