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Solar-powered lamp and charger

A History of the World in 100 Objects

CHAPTER

Solar Panels - A New Source of Energy for the Poor

In one hour, we get as much energy from the sun on the earth as we use right across the planet in one year. The cost of accessing that limitless supply of energy is really crashing down. Just in the last couple of years, the cost of a solar panel has fallen by about a half. Although silican is cheap and sunshine is free, solar panels big enough to generate the girgantuan amounts of electricity that rich countries devour are still prohibitively expensive.

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