As a core component of an efficient energy system, magnesium alloy forgings have several advantages, which are described in detail below: High energy density: Magnesium alloy forgings have excellent energy storage properties. Its high energy density makes it an ideal energy storage material for efficient energy systems. The energy storage efficiency and capacity of the energy system can be effectively improved by utilizing the energy storage characteristics of magnesium alloy forgings. Fast charge and discharge speed: Compared with other materials, magnesium alloy forgings have faster charge and discharge speed. This means that in efficient energy systems, the use of magnesium alloy forgings can achieve a faster charge and release charge process, improving the response speed and use efficiency of the energy system. Lightweight design: Magnesium alloy is a lightweight metal with a low density. In efficient energy systems, lightweight design can reduce the weight of the entire system, reduce energy consumption, and improve the portability and portability of the energy system. Good corrosion resistance: Magnesium alloy forgings have good corrosion resistance and can resist corrosion and oxidation under various harsh environmental conditions. This enables magnesium alloy forgings to operate stably in an efficient energy system for a long time, extending the service life of the system. Sustainable resources: Magnesium is one of the abundant metallic elements in the Earth’s crust and has a wide resource distribution. Using magnesium alloy forgings as the core components of efficient energy systems can better achieve the goal of sustainable energy development. It can be seen from the above advantages that magnesium alloy forgings, as the core components of efficient energy systems, have important application value and potential in improving energy storage and transmission efficiency, reducing system weight, extending system life and realizing sustainable energy development. In the future, with the further breakthrough of magnesium alloy technology and the expansion of application fields, it is believed that magnesium alloy forgings will play a more important role in efficient energy systems.