Energy consumption of the nonmetallic sector is approximately 30.74 % of the industrial sector energy consumption in 2019, uppermost in the industrial sector of Thailand. The industry of container glass and tableware glass manufacture industry consumes the second-highest energy percentage after cement. Following that, the Ministry of Energy aims to reduce 30 % of energy intensity by 2036, followed by the Thai Energy Conservation Plan 2015 (EEP2015). Specific energy consumption (SEC) and Baseline energy consumption (BEC) are obtained to interest the relationship between relevant variables. Regression equations are developing to predict BEC and SEC baseline. These equations can be used as a powerful instrument for energy management to save energy. 14 of 15 containers glass and tableware glass plants in Thailand were audited and analyzed in this paper. The main product is a glass bottle, glassware, and other (handmade glass and industrial marble balls). Approximately 84% of the energy used in this sector is thermal energy. The BEC and SEC equations showed that total product quantity, molten glass volume from the glass-melting furnace, and glass melting furnace age ratio are affected by energy consumption. Therefore, entrepreneurs in this sector can apply developed BEC and SEC equations from this study as a guideline for establishing their energy performance indicator baseline.