A megawatt-hour (MWh) is a unit of energy that represents one megawatt of power used for one hour. It is commonly used to measure electricity generation and consumption. One megawatt is equal to 1,000 kilowatts, so a megawatt-hour is equivalent to 1,000 kilowatt-hours (kWh). This measurement helps utilities and consumers understand energy usage over time. In the context of renewable energy, a megawatt-hour can indicate how much electricity a wind turbine or solar panel produces in an hour. Understanding MWh is essential for managing energy resources and planning for future energy needs.