The Aggregated Energy Security Performance Indicator (AESPI) at national and provincial level

The energy security performance of Thailand has been assessed using the “Aggregated Energy Security Performance Indicator (AESPI)” for the period 1986–2030. During 1986–1991, AESPI had a sharply decreasing trend from level 9 to level 7 (maximum is 10), implying that the country’s energy security status reduced during that period. The energy conservation programmes contributed in maintaining AESPI (at higher than level 6) during 1992–2009. Of the 25 indicators, energy and electricity consumption per capita, final energy intensity (including industrial and transportation sector), losses in transformation, RPR of crude oil and natural gas, net energy import dependency and carbon-di-oxide emission per capita (and per GDP) have a high correlation among them and also have a high weighting factor for AESPI indicator. The use of current policy scenario and low carbon society scenario to estimate AESPI during 2010–2030 showed that AESPI under the low carbon society scenario has an increasing trend at 1.3% annual average improvement rate compared to 0.6% of current policy scenario. AESPI was also developed for Phuket, a province of Thailand, for the period 2001–2009. The results show that Phuket had low AESPI compared to the national level, and this can be improved by promoting electricity conservation, energy efficient equipment use and cost-effective renewable energy projects. The advantages (and differences) of AESPI compared to other energy security indicators in the literature have also been presented and discussed.