Serbia is dependent on imports of crude-oil and natural gas, but is endowed by reserves of lignite and the potential of renewable energy sources. Serbia has a strategy to reduce greenhouse gas emissions in the energy sector and to increase the share of renewable in gross final energy production 27% by 2020. Serbia?s total estimated technically usable potential of renewable energy sources is 5.65 Mtoe per year. Biomass has the highest potential for use in Serbia (3.448 Mtoe), followed by hydro power (1.679 Mtoe), solar energy (0.240 Mtoe), geothermal energy (0.180 Mtoe), and wind energy (0.103 Mtoe). This paper presents the potential of renewable energy sources available in Serbia, with current status of their use and prospects for further exploitation.

All textile products must meet certain needs and standards. It is evident that textiles are best recognized in the fashion industry, where the fineness of the material is expressed, qualitatively assessed with the implementation of certain standards for storage, ironing, maintenance, longer use and possible recycling. Among the characteristics that are important for clothing items, the use of bleach, washing at a certain temperature, hand or machine washing, ironing, separation of clothing according to raw material composition (cotton, wool, textiles, elastane), washing duration, drying, and the like are highlighted. This paper presents existing standards for labeling textile items, which exist in different parts of the world. The purpose of familiarizing yourself with the lists of standards is to provide a basis for the standardization of environmentally sustainable materials, which will use resources rationally, with innovative proposals understandable to all manufacturers, distributors, verifiers, sellers, users and re-users of the observed textile goods.

Textile fibers are produced in a natural way, and more and more often we have the opportunity to see impossible textile structures that retain desirable properties, such as non-creasing, long-term coloring, temperature stability, resistance to insects and the like. For the expansion of the use of printed textiles, a well-organized system in which technology is connected with economy, ecology, resources, informatics and marketing will have a great merit. Many filament (material) input methodologies are similar, and the difference is in the materials used, as well as in the process of general application and combining and joining of materials, so that the product is used for a long time. Fashion trends are something that negatively affects products, but this is solved by recycling and refurbishing clothes or shoes. The key moment for the development of 3D printing in the textile industry will be widely available printing technology, broadband internet and broad social acceptance of innovative materials. This paper presents the technologies that use different filaments in the production of textile fibers, and then also final products that do not have to be only clothing, but also for the needs of construction, defense and agriculture. The reason that every industry is looking for the use of artificial material that has similar characteristics to natural ones, where some properties will be improved and competitive in the market.

The structure of the facilities under construction must be designed to be energy efficient. The contribution of each residential or business, production and storage facility must be viewed in the context of energy savings and transformation through a centralized system. Renewable energy sources (RES) make a significant contribution to energy efficiency in buildings, which can be combined with each other and through huge transformations from thermal to electricity, achieve huge savings. in addition to savings and efficiency, RES also affect the construction of facilities that fit into the living space and compensate for the modalities of heating-cooling-transformation-storage-sale of excess energy The paper analyzes the current state of licensing, design and construction of facilities, as well as the issuance of use permits with reference to the installation of "green" materials and the creation of an appropriate atmosphere that supports renew-able energy sources and energy efficiency.

Natural resources are a key asset for most countries, with heavy industry relying on the exploitation and processing of metals. Viewed in a micro-environment, surface and underground mining sites can contribute both to economic expansion, if resources are returned to the local environment and community, and to environmental prudence from the forced production of ores and concentrates. The paper discusses the sustainability of mining depending on the introduction of clean technologies, while involving the local community and population in monitoring and reporting on potential accidents, harmful emissions and pollution of water, soil and air.