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.

Let's take a closer look at the issues the company is facing and whether it has an opportunity to stage a turnaround.

The biggest issues facing Plug Power are negative gross margins and cash outflows. The company found a niche selling fuel cells used in forklifts and other material handling equipment to high-volume warehouses. However, in conjunction with these deals, it has long sold the hydrogen fuel needed to power these devices at a loss.

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Source Fool.com