When you take a step back and look at the longer-term picture, all three of these tickers are quite promising.

Renewable energy stocks clearly aren't creating the same sort of buzz they were several years ago. Don't be fooled though. This business is as promising now as it ever was. It's just a different ...

even if it's a little less exciting. That's the advent of renewable energy. For the first time in history it at least seems possible the planet could eventually wean itself off of fossil fuels.