The recent announcement of a collaboration between BMW and Toyota to mass-produce a hydrogen fuel cell vehicle by 2028 has had a positive impact on Plug Power's stock, which surged 7.1% on the news. Plug Power aims to become a major producer of liquid hydrogen for hydrogen-powered cars. BMW's commitment to design its vehicles with hydrogen fuel tanks is viewed as a vote of confidence in hydrogen technology, potentially benefiting Plug Power's future prospects. However, despite the positive sentiment surrounding the hydrogen collaboration, there are concerns about Plug Power's financial stability. With only $62 million in cash and $916 million in debt, and a current cash burn rate of $1.5 billion per year, Plug Power may face challenges in sustaining its operations until it can generate revenue from hydrogen fuel sales to BMW owners in 2028. Overall, the news highlights the growing popularity and potential of hydrogen power in the automotive industry. While investors are optimistic about the future of hydrogen technology, uncertainties remain regarding Plug Power's financial viability in the coming years. The market reaction to the collaboration indicates a positive outlook on the advancement of hydrogen fuel in the car industry.