For the second day in a row, shares of fuel cell company Ballard Power Systems (NASDAQ: BLDP) are blowing up -- in a good way.

After forging ahead 14.6% on Monday on news that it is introducing a "disruptive technology" to "materially reduce the costs and scale production capacity of next-generation, proprietary graphite bipolar plates," Ballard stock is tacking on another 12.1% gain through 10:45 a.m. ET Tuesday -- bringing the stock's total gains to 29% since the close of trading last week.  

Ballard explained in its press release yesterday that it is engaged in an effort to lower the cost of its proton exchange membrane fuel cells by lowering its cost of producing the parts of these fuel cells. Having already developed a "next generation" graphite bipolar plate, then expanded production capacity of membrane electrode assemblies, Ballard's next step is to expand production of the plates.

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Source Fool.com