It is essential for the productivity of companies to take care of their resources and optimize both environmental and economic aspects for their long-term profitability; in the industrial sector of Ecuador, the textile industry has a great productive impact, which is why this research has investigated its energy efficiency. The recent update of the ISO 5001:2018 standard, allows to set the focus on an energy management system based on continuous improvement, which allows changing not only business realities, but also environmental. This work addresses the analysis of the energy baseline of a textile company, which indicates that there is no adequate correlation between energy consumption and production. This study demonstrates the benefit of implementing an energy management system based on ISO 50001: 2018.