The new math of alternative energy

There appears to be some real momentum for alternative energy. (permanent subscription link)

Now the equation is showing significant signs of change. Costs are falling for some alternative-energy sources, driven by new technology and renewed development interest.

Alternative energy still can’t compete with fossil fuels on price. But the margins are narrowing, particularly since oil and gas prices have been rising. The math looks even more favorable if you consider the environmental cost of fossil fuels — which most purely economic calculations don’t.

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