In West London, at the HS2 Victoria Road Crossover Box site, hydrogen fuel cell power units (HPUs) are revolutionizing temporary power applications by providing emissions-free electricity. Hydrogen fuel cells, traditionally used in transportation, are now making their way into the construction and rental industries as eco-friendly alternatives to diesel generators. Companies like GeoPura and EODev are leading the charge in deploying hydrogen-powered solutions, driving the sector towards sustainability. GeoPura's expansion plans, with secured funding and in-house hydrogen production, signify a growing interest in hydrogen as a clean energy source. However, challenges such as hydrogen availability and cost persist, posing hurdles to widespread adoption. Despite these challenges, the sentiment towards hydrogen-powered equipment is positive, with increasing investments and partnerships in the sector. As the industry evolves and production scales up, hydrogen fuel cells offer a promising solution for reducing emissions in temporary power applications, presenting rental companies with both challenges and opportunities to embrace sustainable practices.