Abstract
In this article, the research is conducted with a purpose to assess energy efficiency of engineering systems. The main role of ALDREN-EPC certificate is described here, which is to determine the indicator of smart readiness of a building and the procedure for its evaluation. Also, the article recommends a tool to improve the effectiveness of SRI. The requirements and prospects of the EPBD ecosystem are outlined as well. Moreover, main causes of project degradation companies are investigated. Such as the lack of specialists of the proper level, the outdated structure of the project organization, as well as the lack of an understandable regulatory framework and training materials.