Solar power - governments across the world say they want it, so which firms are likely to end up with the business? And denting the dollar. The once all-powerful greenback may be down, but is it out? Show more
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Solar power - governments across the world say they want it, so which firms are likely to end up with the business? And denting the dollar. The once all-powerful greenback may be down, but is it out? Show more
The BBC's international radio station
