Energy secuity is often classified as necesary to human security becuase of the importance of tts services for both modern economies and post-modern lifestyle as it relates to dialogue about energy issues as well as climate change. The paper aims to provide assessment and consideration of key aspects relating to energy security by providing comperehnsie definitions, highlights on key characteristics, underlying values and components of each of dofferent key dimentions of energy secuirty, as well as key contributions to economic developments. The paper is primarly based on reviewing the avilable leturature in the field as well as inclusion of key profesisonal and academic publications to enhance application and inclusion of key trends in the field as well as policies. The research concludes to establish that energy security has evolved as a result of the transformation of the world’s energy regime in terms of the growing dominace of non-renewable fossil fuels and increasing reliance on oil, the 1970s economic crisis and liberalisation of energy markets, development of nuclear energy, fluctuating fortunes for coal and gas, escalating energy demands of developing nations, and the impacts of political instability and large-scale natural events and the energy regime of the 21st century.