The problems that have plagued Plug Power (NASDAQ: PLUG) persisted in its second quarter as the company once again posted poor results. The stock has lost about 80% of its value in the past year.

Plug Power — which is supporting the Department of Energy’s hydrogen hubs — has alarmed investors by suggesting it could run out of cash over the next year. A fuel cell developer aiming to build North ...

Plug Power (NASDAQ:PLUG) -7.6% in early trading Tuesday to a two-month low after reporting a larger than expected Q3 loss as revenues fell 12.5% Y/Y to $173.7M, and issuing downside guidance for ...

The water trickled, and the lights blinked on. In a new study, researchers in Singapore describe a way to turn falling water into electricity using nothing more than droplets, a narrow plastic tube, ...