The maritime sector, which accounts for more than 80% of worldwide merchandise trade, is grappling with escalating environmental and energy-related issues. Rising emissions from fossil fuel reliance, stringent International Maritime Organization (IMO) regulations, and the urgent need for decarbonization drive innovation in maritime energy management. This paper explores future trends, including alternative fuels like methanol, hybrid power systems, energy-efficient technologies, and renewable energy integration. Methanol is gaining recognition as a practical fuel for marine use because of its minimal environmental footprint and compatibility with existing infrastructure. Hybrid systems combining batteries, fuel cells, and renewable energy sources demonstrate potential for significant emissions reductions. Advanced energy-efficient technologies, such as optimized hull designs and predictive fuel models, further enhance operational efficiency. These innovations, supported by digitalization and sustainable energy strategies, offer pathways for achieving the IMO's decarbonization targets while ensuring economic viability and operational reliability in maritime transportation.