The article discusses a visionary 30-year roadmap for a port's transition to sustainable and decarbonized operations. The initial years focus on electrifying ground vehicles, followed by port vessels and ferries, and later on cold ironing of major ships. By the fourth phase, inland and short sea shipping is electrified, with transoceanic ships utilizing hybrid systems. The port aims to overbuild renewable capacity, including offshore wind and on-site solar, to produce surplus clean energy for green hydrogen and synthetic methanol. Hardware turnover to zero-emission solutions leads to operational optimization through advanced technologies like machine-learning berth scheduling and smart grid management. Financially, the port shifts from fuel purchasing to investing in renewable assets with predictable cost trajectories, resulting in significant net energy revenue by 2055. Regulatory compliance becomes a competitive advantage, positioning the port as a leader in emissions reduction. Resilience is highlighted as a benefit, with the port's battery farm and wind power ensuring uninterrupted operations during grid outages and extreme weather events. By the thirtieth year, the port operates as an energy utility, leveraging data and sustainable practices for profitability and efficiency.