The article discusses the current efforts of companies to scale up proton exchange membrane electrolyzer production in order to accelerate the adoption of renewable hydrogen technology and meet ambitious climate goals. While progress is being made, there is an emphasis on the need for the technology to grow even faster and become more affordable to drive widespread deployment. Numerous references are made to reports and initiatives highlighting the importance of renewable hydrogen, including insights from the Hydrogen Council, the International Energy Agency, McKinsey & Company, and the US Department of Energy. One key challenge highlighted in the article is the imperative for the cost of renewable hydrogen production to decrease significantly for it to become a viable and competitive alternative in the energy sector. The focus is not only on the technological advancements required but also on the economic feasibility of large-scale production. Furthermore, the article mentions specific initiatives such as the National Renewable Energy Laboratory leading a new lab consortium aimed at enabling high-volume manufacturing of electrolyzers and fuel cells. These efforts signify a growing interest and investment in the development of the necessary infrastructure to support the mass production of key components in the renewable hydrogen value chain. In conclusion, the sentiment of the article is positive, recognizing the potential of renewable hydrogen as a key player in the transition to a more sustainable energy future. However, it also underlines the urgency for advancements in technology and manufacturing processes to make renewable hydrogen a competitive and widely accessible energy solution.