What happened Shares of hydrogen fuel cell company Plug Power (NASDAQ: PLUG) got another lift from a Wall Street analyst Wednesday and are up 6.5% in 2:55 p.m. EST trading after analysts at Bernstein began covering the shares. So what Bernstein initiated coverage of Plug with a $75 price target and an outperform rating (i.e., buy). In a note covered on TheFly.com this morning, the bank highlighted heavy-duty transport vehicles as the most attractive part of the market for using hydrogen fuel cells as a power source. Trucks, said Bernstein, will be "the single most important growth market for fuel cells" going forward. Image source: Getty Images. Now what At first glance, that might sound like bad news for Plug Power, which has historically focused on producing fuel cells for warehouse work -- powering electric forklifts. But last month, Plug expanded its operations through an alliance with France's Renault, promising to build "fuel cell-powered light commercial vehicles" in France. Again, this raises questions -- light commercial vehicles being by definition not heavy-duty transport vehicles. Still, the fact that Plug is already moving up the size scale, from forklifts to vans, suggests that moving further on up, from light vehicles to heavy vehicles, won't be as big of a jump as it would have been to move directly from, say, forklifts to tractor trailers. My reservations that any stock, not just Plug, can conceivably be worth 65 times sales notwithstanding, Bernstein's recommendation makes a little more sense when viewed from that perspective, at least. 10 stocks we like better than Plug PowerWhen investing geniuses David and Tom Gardner have a stock tip, it can pay to listen. After all, the newsletter they have run for over a decade, Motley Fool Stock Advisor, has tripled the market.* David and Tom just revealed what they believe are the ten best stocks for investors to buy right now... and Plug Power wasn't one of them! That's right -- they think these 10 stocks are even better buys. See the 10 stocks *Stock Advisor returns as of November 20, 2020 Rich Smith has no position in any of the stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy.Source