Its revenue rose by the high double digits in 2022 and 2023, but a lot of that growth was driven by its acquisitions of two smaller cryogenic storage companies instead of the organic expansion of its core hydrogen fuel cell, charger, and electrolyzer businesses. That's why its operating and net losses widened.In 2020, Plug Power's revenue turned negative because it was subsidizing its sales of fuel cells and charging systems to Amazon and Walmart with new stock warrants. Those unusual subsidies eclipsed its ...