Market veterans will likely recall that hydrogen fuel cell stocks like Plug Power and Ballard Power Systems were all the rage at one time. This alternative energy was going to change the world, after all.

And then, nothing happened. As it turns out, the world wasn't quite ready for fuel cells; the business wasn't quite ready for the world, either. This industry's stocks have mostly struggled for the past couple of decades.

You might want to put these tickers back on your radar, though. A couple of major oil companies recently made investments in hydrogen-based power solutions, thinking the movement will eventually displace the oil and gas business. One of these fuel cell companies, in particular, could already be buy-worthy.

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Source Fool.com