In the latest episode of "Redefining Energy Tech," hosted by Michael Barnard, we had the pleasure of welcoming Roberta Cenni, head of biofuels at the Maersk McKinney Moller Center for Zero Carbon Shipping. With a rich background in chemical engineering and a passion for sustainability, Roberta shared her journey and the pivotal decision to join the center. This pioneering organization, established by Maersk as a non-profit, spearheads the mission to decarbonize the shipping industry through collaboration across sectors to innovate in alternative fuels and low-carbon solutions. Our conversation delved into the promising role of biofuels, particularly focusing on biomethane and methanol, in the quest for decarbonizing maritime shipping. The challenge of methane emissions from anaerobic digesters was a critical point of discussion, highlighting the need for further research and technological advancement in capturing these emissions effectively. We also explored the landscape of LNG-powered ships and the emerging interest in ammonia as a potential fuel option, underscoring the complexity and evolving nature of port infrastructure and bunkering requirements for these alternative fuels. The dialogue was enriched by Roberta's insights into the economic viability and technological pathways for producing bio-methanol as a viable shipping fuel, alongside the ongoing developments in port infrastructure to accommodate the bunkering needs of such alternative fuels. Roberta outlined her action items, emphasizing the importance of continued research into the decarbonization potential of biomethane and methanol, including their production methodologies and the adaptation of port infrastructures to support their use. These steps are crucial for navigating the challenges and seizing the opportunities that lie ahead in achieving a zero-carbon future for maritime shipping.