Marine propulsion systems are technologies used to move ships and boats through water. The most common types include diesel engines, gas turbines, and electric motors. These systems convert energy into mechanical power, allowing vessels to navigate efficiently across oceans and rivers. In addition to traditional engines, some modern marine propulsion systems utilize renewable energy sources like wind and solar power. These eco-friendly options aim to reduce emissions and reliance on fossil fuels, contributing to more sustainable maritime operations. Overall, marine propulsion systems play a crucial role in global trade and transportation.