Energy security has in recent years grown as a salient policy and political issue. To better understand energy security and sustainability concerns, this study's main objective is to present an energy security index which measures national performance on energy security over time. Based on three...

Denmark is arguably the most energy secure and sustainable country in the Organization of Economic Cooperation and Development (OECD). The country has reduced its dependence on foreign sources of energy to zero and become self-sufficient in its own energy production and use, offering important...