The article discusses the evolving focus within the tugboat and workboat sector on enhancing power delivery to thrusters and propellers while simultaneously reducing pollution in harbours to comply with environmental regulations aimed at cutting greenhouse gas emissions. The industry is particularly concentrated on reducing NOx and particulate matter emissions, crucial for improving air quality around ports and ensuring a healthier environment for workers and nearby populations. As upcoming regulations will target ports and harbour vessels, tugboat owners are prompted to explore innovative solutions to power their vessels sustainably. At the recent TUGTECHNOLOGY ’25 conference, the industry debated the potential of methanol engines supported by onboard batteries and hybrid propulsion systems to address emissions. However, a more ambitious approach involves utilizing hydrogen as a long-term, zero-emission fuel solution. CMB.TECH is pioneering the development of hydrogen-fuelled harbour tugs, aiming to revolutionize port operations with fleets of hydrogen dual-fuel engines. The industry is also exploring the utilization of fuel cells to generate electrical power from hydrogen for workboats, showcasing the growing potential of hydrogen technology. The key to achieving a greener maritime sector lies in collaboration among stakeholders to develop fleets of hydrogen-fuelled tugboats and workboats, ultimately reducing port pollution and greenhouse gas emissions. The upcoming Riviera conference in Bergen will further showcase hydrogen and energy storage solutions, emphasizing the industry's shift towards sustainable practices.