All the activities of Dravske Elektrarne Maribor comply with quality management standards according to the ISO 9001:2000, ISO 14001:2004 and OHSAS 18001:1999 certificates.
All the processes within the company are carried out so as to ensure the quality of all the company’s major activities, including the generation of electric energy in hydroelectric power plants, the maintenance of energy facilities and equipment, the development and management of investment projects and the operations of the company as a whole. A comprehensive system combines the assurance of quality with the responsible treatment of the environment while also ensuring safety at work and the health of employees. The quality system implementation in all areas is defined by the specific rules of governance and the meeting of principles and guidelines is proven by the appropriate systems documentation.

At the Dravske Elektrarne Maribor company, all processes undergo continuous surveillance.
By the combination of inspections, assessments and improvements of processes, training and ongoing information for employees and ensuring that appropriate materials and other resources are available for the successful operation, the company guarantees the conformity of its activities with all the legal requirements and international standards so as to achieve all around business excellence. Achieving excellence is the fundamental guideline for the actions of the company and those of each individual in it.
A significant part of the quality management system is the responsible treatment of the environment.
Technological solutions are established and supervised so as to decrease their effects on the environment. All actions affecting the environment are carefully planned and implemented in accordance with the principles of the sustainable use of natural resources. The responsible treatment of the environment includes a planned encouragement of knowledge, awareness and actions which will allow for the preservation of nature as well as our technical and cultural heritage.

The quality of operations and the efficiency and success of company depend on the knowledge and capabilities of employees. The management system directed at maintaining the health and safety of employees is based on the management of the risks associated with the company's operations.