Environmental sustainability for traditional energy small and medium enterprises.

The improvement of production processes, the development and use of new technologies, materials and energy infrastructure, the transition to new fuels, and the growth of energy consumption-all gives impetus to the advancement and continuous modernization of the energy sector. Hence, the transition to the concept of sustainable development poses new challenges to the energy sector: meeting the increasing demand for energy should occur while reducing the sector's anthropogenic impact on the environment. The energy sector must meet the requirements of sustainable development, for this, it needs to carry out a large-scale eco-modernization of the energy infrastructure, when the environmental component comes to the fore when developing long-term development programs for individual enterprises. Although the introduction of the principles of sustainable development may become one of the drivers for improving the efficiency of energy enterprises and achieving environmental sustainability, they have been introduced in a small part of enterprises. The purpose of this study is to define key principles and factors that should be included in the concept of environmental sustainability in traditional energy SMEs. Based on the results of the study, a list of factors that have a direct impact on the environmental sustainability of traditional energy facilities has been formed.

Screening of Factors for Assessing the Environmental and Economic Efficiency of Investment Projects in the Energy Sector.

In view of the current agenda in the field of climate and environmental conservation, the requirements for environmental project appraisal are being tightened: the evaluation of environmental indicators of project implementation should be carried out on a par with indicators of its economic performance. Current approaches to the assessment of environmental and economic efficiency do not completely cover the negative environmental impacts of a project's implementation, and this reduces the effectiveness of the evaluation. Therefore, it is necessary to develop a system of environmental indicators that will address the specifics of the industry. This is made possible on the basis of determining a list of key factors that should be included in the evaluation system. The purpose of this study is to determine the most significant factors for establishing a simple yet thorough assessment framework to evaluate the efficiency of energy investment projects. Research methodology includes an a priori ranking method and analysis of interrelations between factors. Based on the results obtained, the authors have formed a list of key factors that could become the basis of a future system of environmental indicators for the efficiency assessment of energy projects.