Quantitative Assessment of Energy Supply Security: Korea Case Study

Abstract

Ensuring energy supply security has become one of the most important purposes for many countries. To make the strategies for ensuring the energy supply security of a country, it is essential to quantitatively assess the security. This paper aims to present a methodology to evaluate the energy supply security of a country by using different indices of energy dependence and energy diversity, which have been raised as two main paradigms of energy supply security. This study also proposes two indices reflecting the correlation between a country’s energy diversity and energy import dependence to evaluate its energy supply security based on easily accessible data. The presented methodology and indices were applied to the evaluation of the primary energy supply security of Korea from 1991 to 2018. The results show that a country highly dependent on energy imports is not evaluated as secure enough in terms of energy supply even if it obtains higher energy diversity. This finding supports the importance of the correlation of energy dependence and energy diversity of a country to ensure its energy supply security. This approach could be further adapted to other countries and help them to make their energy policy and strategies.

Sustainable energy planning for the aspiration to transition from fossil energy to renewable energy in Northern Cyprus

“…Energy supply security: In recent years, continuing energy production with old technology and primary energy sources, or at least renewing obsolete technologies in this direction in sustainable energy supply, seems unlikely. A highly dependent country on energy imports should turn to energy diversity in production to ensure sustainable energy supply security sustainable [ 85 ]. In NC, 95% of energy is imported.…”

A Bi-Level Model for Green Freight Transportation Pricing Strategy Considering Enterprise Profit and Carbon Emissions

“…The spread of COVID-19 has brought disastrous consequences to the world. The medical systems of cities with serious pandemic situations have encountered great pressure and challenges [28,29], and the impact on global economic development, food and health, and energy supplies is incalculable [30][31][32]. In order to fully understand the impact of COVID-19 on global economic development, transportation demand and cost, transportation stability and reliability, and transportation greenhouse gas emissions, in this section, we present a detailed analysis from the above perspectives.…”

“…where µ w is the Lagrangian multiplier vector of the freight volume constraint Equation (30). Setting y(p) = [q w (p), µ w (p)] T , J y (p) represents the Jacobian matrix for Equations ( 31) and (32). J p (p) represents the Jacobian matrix for Equations ( 31) and ( 32) on p. Then,…”

A Comprehensive Performance Evaluation of Chinese Energy Supply Chain under “Double-Carbon” Goals Based on AHP and Three-Stage DEA

“…Under the "double-carbon" goals, as one of the industries with high energy consumption, the traditional energy enterprises that have mainly relied on coal are faced with a severe impact from the substitution of dominant industries and so it is urgent to achieve green transformation. At the same time, this plays a vital role in helping to achieve the "double-carbon" goals in the whole energy supply chain [3][4][5]. In order to carry out the green and "double-carbon" transformations in the energy industries, in addition to national policy supports and sufficient funds, it is necessary to accurately assess the "double-carbon" and environmental-protection situations of each node in the energy supply chain so as to put forward the transformation strategy [6,7].…”