Energy modeling is a methodological approach employing quantitative frameworks and computational tools to simulate, analyze, and forecast the behavior and performance of complex energy systems. This field investigates the intricate dynamics between energy supply, demand, infrastructure, technology diffusion, policy interventions, and their associated environmental and economic impacts. Key characteristics include the development and application of mathematical models ranging from bottom-up technological representations to top-down macroeconomic linkages, facilitating scenario analysis, optimization, and impact assessment. Its significance lies in providing essential analytical capabilities for informing strategic planning, policy development, and investment decisions aimed at enhancing energy security, sustainability, and affordability.