The basics of quantum computation (QC) originate in quantum mechanics (QM), which helps develop unusual methods for working on difficult computing problems. The potential of quantum computing in physics and computer science is clear, but its prospective role in the energy sector is half-explored and not well-studied yet. It is the main goal of this study to see if quantum computing can address the growing challenges faced by today’s power systems. It starts with an explanation of the origin and basic theories of quantum computing before going into its current applications. After that, the text shows where quantum computing can make a difference in solving complex problems in the power system. Some of the main subjects are calculating AC and DC power on the network, assessing reliability in case of outages, keeping track of grid conditions, modeling sudden voltage bursts, locating malfunctions quickly, choosing how much power to produce, and planning the layout of new power plants. To some extent, because of the technical limits of present-day quantum computers, quantum computing has the power to make a huge difference in how we manage power grids. Researches show that with the expected progress in quantum technology, running quantum computers can have a major impact on resolving large-scale energy problems in the real world soon. Besides pointing out what quantum computing is used for, this research also motivates more scientists to research and explore new possibilities in this field.