Plug Power Inc's shares are trading lower after the company's annual green hydrogen conference. The company provided a long-term revenue outlook, expecting $6 billion in revenue in 2027 and $20 billion in 2030. Susquehanna analyst Biju Perincheril maintained a Positive rating for Plug but lowered the price target from $14 to $13. The Biden administration is expected to award $7 billion in federal grants for clean hydrogen fuel production.