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Solar power is magnificently exciting. Just lay down a sheet or a panel and every day, for the life of the device, you get free power. There are no fuel costs. No one is ever going to start charging $4 per gallon of sunlight. But, unfortunately, the size of the initial investment keeps the cost of solar generated power higher than the cost of coal.
Nanosolar prints it's mixture of several elements in precise proportions onto a metal film. The production is fast, simple and cheap, at least for now. Some fear that shortages in indium will bring a halt to nanosolar's cheap printing…










