 Shares of Plug Power Inc. PLUG, 1.58 sank 7.0 in premarket trading Friday, after the hydrogen and fuel cell systems company said 2022 revenue could be 5 to 10 below previous guidance, as some larger projects could potentially be completed in 2023 rather than 2022. From the midpoint of the previous 2022 revenue guidance of 900 million to 925 million, a 5-to-10 decline would be about 821.25 million to 866.88 million, while the current FactSet revenue consensus is 919.1 million. 