Sustainability has become a relevant element for organizations due to several motivators: companies adopt sustainability practices in need for regulatory compliance, anticipation of regulatory changes, understanding of limited natural resources, and a desire to limit expenditure associated with resource consumption and waste disposal. Thus, this article aims to identify the gaps present in maturity models, present an integrator theoretical model that considers the characteristic elements of the models present in the literature and affects the level of maturity in sustainability. The construction of the integrator theoretical model was based on the following stages: research questions; theoretical framework on Supply Chain Management; sustainability and concept of maturity model; maturity models and performance measurement systems; interpretation/analysis of research; and construction of the integrator theoretical model. The literature review was carried out in the Scopus and Web of Science databases. The main conclusions: maturity models focus on only one aspect or are excessively broad and do not include in detail the elements necessary to measure the level of maturity in sustainability. The proposed model aims to mitigate these gaps with the addition of the cross-sectional dimension, which offers an integrated and holistic view in relation to the other dimensions.

Considering the importance of ISO 50001 in sustainable development, the objective of this research is to identify the challenges found by organizations during the implementation of ISO 50001:2011, according to the literature. To address this objective, a systematic search was conducted. Scientific papers from the following international databases were used: Science Direct, Emerald Insight, Scopus, Springer, Wiley, and Taylor and Francis. Permutations of the terms “ISO 50001” and “Challenges”, “Barriers”, “Lacks”, “Gaps”, “Obstacles”, “Problems”, and “Limitations” were searched. Following this strategy, 206 documents were found. After removing book chapters, articles from proceedings, duplicate articles, and articles that did not mention any challenge related to ISO 50001, 17 articles were left. Eleven challenges were found in these articles. The most cited challenges were: “Lack of Resources-Limitations (HR, Technologies, Infrastructure, Financial, Time)”, “Difficulty to determine the energy baseline and energy performance indicators”, “Human Resources deficiencies (competences, knowledges, and abilities)”, and “Lack of management support and/or commitment”. The challenges most cited shows the need for better planning before implementation as well as a comprehensive analysis of the organization’s requirements and features. The findings of this research show that this theme is still underexplored. The results presented can contribute to future industrial policies to potentialize countries’ economies.