As ships continue to emit harmful pollutants in ports, the world is seeking solutions to address this pressing issue. The impact of local emissions on human health, including respiratory problems and increased cancer risks, has drawn attention from organizations like the World Health Organization. In the UK, the Port of Southampton has observed a surge in emissions from cruise ships, prompting initiatives like the Seachange Shore Power Project to install shore power systems for vessels. Regulatory bodies are enforcing limits on emissions and pushing for cleaner technologies, with a focus on GHG emissions. The European Commission's FuelEU Maritime regulations mandate the use of shore power supplies for ships in major EU ports, allowing for alternatives like hydrogen and ammonia fuel cells. While grid power connections are limited and costly, fuel cells present a more sustainable option by eliminating local emissions effectively. Fuel cells, especially those utilizing hydrogen and methanol, are being adopted on various vessel types to power propulsion systems and auxiliary engines, reducing the reliance on diesel gensets. Methanol fuel cells, in particular, offer a practical and efficient pathway for integrating hydrogen technologies without the need for pure hydrogen infrastructure. With the maritime industry moving towards greener solutions, fuel cells are proving to be a key player in the journey towards sustainable and environmentally friendly operations.