For long now, the world has been depending on the fossil-fuels; mainly oil. But a lot of businesses are moving towards a sustainable future while considering higher growth. Green hydrogen: a solution for the sustainable future has been taking over now. Being the best alternative of fossil-fuels, green hydrogen has a long way to go when it comes to production and usage. Due to many challenges, this solution has not been completely adopted yet. The case company has an innovation that can support the green hydrogen, so we will use DOI, multi-level perspective and cluster theory to identify the variables that will interrelate with the diffusion rate, which will help us to understand the diffusion process in B2B business. For our thesis research, we have followed a case study approach with the intent to highlight those opportunities and what are the challenges that are hindering the green hydrogen growth. We wanted to seek into how the Diffusion of Innovation theory can be implemented into the hydrogen industry. With the assistance of a company Scarab, who has developed an innovation called Ultrapure water which has the potential to accelerate the growth of green hydrogen adoption; we wanted to look further into the case on how such innovation can contribute for a better green future . We conducted a semi-structured interview with multiple interview guides which was used for our research with the involvement of people from ultrapure water industry and hydrogen industry. Finally, we identified the strengths and weaknesses of UPW innovation, the drivers and hinders of green hydrogen, and how all these factors will interrelate to the diffusion rate of UPW innovation into green hydrogen.