Energy security refers to the availability and accessibility of an adequate, reliable, and sustainable supply of energy at reasonable prices. It is about ensuring that a country or region has secure sources of energy that can meet its needs without disruption, whether from natural causes such as weather events or man-made threats like terrorism or cyber attacks. Energy security also involves diversifying the types and sources of energy used to reduce dependence on any one fuel or supplier, thereby reducing vulnerability to price fluctuations or supply interruptions. In summary, energy security is about ensuring a stable and reliable energy supply that supports economic growth and reduces geopolitical risks.