A crucial task that determines the future of a nation's energy landscape and, by extension, its economic and environmental sustainability is the integration of energy systems with national energy planning. Strategic evaluation, coordination, and regulation of energy resources, infrastructure, and policies are all part of national energy planning. Energy systems, which include the production, delivery, and use of energy, whether it comes from fossil fuels, renewable energy sources, nuclear power, or a combination of these, are at the center of this planning process. Aligning energy systems with more general objectives like energy security, affordability, and environmental sustainability is a crucial component of effective national energy planning. Making decisions about infrastructure investments, incentives for the adoption of clean energy, and other energy-related matters demands having a thorough awareness of technology breakthroughs, market dynamics, and the changing energy landscape.