It's been a difficult few years for Plug Power (PLUG 3.85%), which has seen its stock fall from over $70 in early 2021 to under $4 today.

In November 2023, when it filed its 10-Q for the third quarter, the company issued what is referred to as a "going concern" warning projecting that it may not have enough cash to fund its operations and capital expenditure requirements over the next 12 months. Such warnings are often a prelude to a company filing bankruptcy. However, Plug Power removed the warnings in its 10-K filing in late February.

Let's take a look at Plug Power and see if the company can turn itself around, or if bankruptcy could still be in the cards.

A struggling business

Plug Power is trying to become an end-to-end hydrogen solutions company that offers everything from hydrogen production to storage to hydrogen fuel cells. Currently, the company's main product is a fuel cell used in forklifts and other material handling equipment that's used in high-volume warehouses and distribution centers. It counts well-known companies such as Amazon, Walmart, and Home Depot among its clients.

The problem with its business model is that Plug Power sells the hydrogen fuel to its customers to run these fuel cell-powered forklifts at huge losses. This has led the company to have negative gross margins, and even larger operating losses. As a result, the company has been bleeding cash. In 2023, it had operating cash flows of negative $1.1 billion and it consumed $1.8 billion in total cash including capital spending.