For more than a decade, solar has been one of the highest-potential growth opportunities in the energy sector. That's worked out well for some companies and ended badly for others, but amid the turbulence, this industry has gone from a nascent technology to a true powerhouse in energy.
When I'm looking at solar energy stocks, I like to keep in mind the scale of the industry and the trajectory of where its costs are headed. Here are seven facts that tell a lot about where solar energy is going. They may even change your opinion of the industry's long-term potential.
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