What does Energy Security Mean?

Energy security has emerged as an issue of great importance. As well as the traditional aspects of energy security, a myriad of new aspects has emerged and continues to emerge such as tight oil and gas markets, increasing prices, alternative energy sources and their role, the threat of terrorism, instability in some exporting and importing countries, geopolitical rivalries, and the increasing need for energy to fuel economic growth. The concept of energy security is vague. Energy security is an umbrella term that covers many concerns linking energy, economic growth and political power.