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This paper makes a presentation of the energy system in the context of energy security and the positioning of Romania, in the current conditions, when the international energy markets are in a continuous and complex change. Romania has the advantage of having its own sources of primary energy, being able to achieve a balanced energy mix, in electricity production, between the existing energy resources. The current priorities of the energy sector are correlated with those of the European Union, with the effort to limit the consequences of climate change, and to carry out activities in the sense of the sustainable development of society. [ABSTRACT FROM AUTHOR]

The need to analyze the power subsector, which generates critical infrastructure, comes in the context in which the possible occurrence of cases of non-energy supply (black-out), generates major issues of national interest, with European and NATO implications. The authors consider that addressing the power subsector is a strictly national security issue because the lack of electricity can cause enormous damage to national power system and the national economy, which are almost total dependent on the power subsector. [ABSTRACT FROM AUTHOR]

The need to analyze the oil subsector, which generates critical infrastructure, comes in the context in which the possible occurrence of cases of non-energy supply, or the unexpected rise in prices, generates major issues of national interest, with European and NATO implications. The authors consider that addressing the oil subsector is a strictly national security issue because the lack of oil, natural gas or fuel can cause enormous damage to households, industry and the national economy, which are almost dependent on the oil subsector. [ABSTRACT FROM AUTHOR]

This paper analyzes the electricity production system in Gorj County, the Oltenia Energy Complex, coal-based energy producer, considering the important share it holds in the electricity production market in Romania. In the current context, marked by the emergence of increasingly severe environmental regulations in the energy field, by adopting the Energy Union Strategy, the European Union has assumed an important role in combating climate change, and the CEO wants to consolidate its earned reputation on the competitive Romanian market, by guaranteeing a safe, clean and efficient lignite energy production, carried out in sustainable conditions by protecting and preserving the environment. The modeling of the Romanian energy system is also presented based on the expected evolution of policies and measures, in accordance with various other technical and economic factors and indicators. [ABSTRACT FROM AUTHOR]

This paper aims to emphasize the approach on energy management with its principles and give a general overview of this field of industry. The basic functionality of power system control is found in the Supervisory Control and Data Acquisition (SCADA) function that collects and records values and statuses acquired from the power system elements via remote telemetry to enable control center operators to supervise and control the power system. [ABSTRACT FROM AUTHOR]

When providing solutions for lighting of streets, the parameters must comply with some predefined standards. One of these standards is the standard for EN 13201:2015. Performance requirements - This part of this European Standard that defines performance requirements which are specified as lighting classes for road lighting aiming at the visual needs of road users, and it considers environmental aspects of road lighting. [ABSTRACT FROM AUTHOR]

The environmental impact of coal exploitation is significant, inevitable and irreversible, with effects on aquatic systems, air, natural mineral resources, ecosystems, climate, geomorphology and landscape, land use and human collectivity. The inclusion of environmental protection measures and the ecological restoration of degraded areas in mining perimeters have the role of controlling and limiting the negative effects of coal exploitation and ensuring the restoration of the affected areas to the natural conditions existing before the exploitation started, both during the mining activity and its closure. Pollution is the modification of biotic and abiotic environmental factors due to the release of pollutants, such as wastes from different sectors of human activities. Nowadays, the interest in reducing pollution is growing, as the protection of nature as well as the population against the risks of this phenomenon has become an indispensable requirement. [ABSTRACT FROM AUTHOR]

The paper comprises a study of pollutant dispersion modelling at local and regional scale which would concentrate on the assessment of the impact on air quality generated by high combustion installations of Rovinari power plant. Due to its geographical position, the area of the locality of Rovinari is affected by the regional pollutant transport. This fact has been highlighted by the studies of air quality assessment through mathematical modelling at national level. [ABSTRACT FROM AUTHOR]

The purpose of this paper is to present an alternative supply of electricity to residential buildings and presented and analyzed methods to increase energy efficiency. The solution chosen and presented in this paper is the conversion of wind energy using a wind system consists of wind generator, inverter, batteries batteries, diesel generator.Efficient energy use is widespread concern regarding the efficient use of material resources of any kind. Efficient energy has become an economic necessity, condition expressed concentrated by reducing the share of energy costs in total production costs. [ABSTRACT FROM AUTHOR]

In this paper, the primary forms of energy existing in nature. A classification of the types of fuels and steps taken for their use. Accelerated technological progress and industrial development have resulted in a complication of primary energy conversion chain - direct energy use. They were shown the effects of mining on the environment, exploitation of coal energy, wind energy home as part of renewable energy, which is a renewable source of energy generated from wind power. Wind energy is considered one of the most sustainable options of future variants wind resources are huge. [ABSTRACT FROM AUTHOR]

In the blood, as in fact throughout the body, there is a surplus of negative electric charges, which leads to the idea that the body, at a deeper level, hidden material support, there is a plasma state. It should therefore be calculated electric potential manifested in the existence of such states. [ABSTRACT FROM AUTHOR]

Knowledge of the energetic characteristics of coal used in power plants Oltenia Basin is of great importance. These characteristics also vary influence the combustion process, emissions of nitrogen oxides. Ideally, these characteristics remain constant. [ABSTRACT FROM AUTHOR]

In this paper were presented and analyzed methods to increase energy efficiency. Efficient energy use is widespread concern regarding the efficient use of material resources of any kind. Efficient energy has become an economic necessity, condition expressed concentrated by reducing the share of energy costs in total production costs. Were presented effects of recovery secondary energy resources. Among the most effective ways of increasing the use of energy consumed in industrial processes can be mentioned capitalization secondary energy resources results, in this case flue gas. Side effects Tice recovering energy resources are technical, energy, economic and environmental. [ABSTRACT FROM AUTHOR]

It presents a possible explanation for the large distances between atoms by correlation with the ratio of electrostatic and gravitational forces for the case of two electrons. [ABSTRACT FROM AUTHOR]

This paper solves the problems of the dynamics of thin-walled bar frames of open sections excited externally parametrically, decomposing the functions of the section displacements in time, after the bending functions in the main planes of inertia and simple twisting. It is then shown that the dynamic instability domains will move to the high frequency area, as in the absence of elastic medium. [ABSTRACT FROM AUTHOR]

This paper aims to prove that the subject of transition to electric vehicles being a bad decision concerning efficiency, is not founded on clear grounds. So it was shown in a theoretical approach, how efficiencies for the elements in the chain of extraction, processing and distribution of different energies add up to a more clearer image of this transition that is already taking place. [ABSTRACT FROM AUTHOR]

The emergence of energy dynamism around the world manifested by the lack of finite primary energy resources (oil, natural gas, coal and uranium) and/or electricity to final consumers and the wish of the world's major energy powers to own and control the entire world energy chain for the purpose of using primary energy resources or electricity as a possible energy weapon or pressure instrument in the context of blackmail and profitability, it makes this paper of great importance and relevance, especially in the new context of military instability on the background and due to energy causes. The lack of supply of primary energy resources or electricity to final consumers leads to the triggering of societal crises with possible military escalation and can cause States of societal imbalance bringing extreme damage to the safety of the citizen, industry, national economy and, implicitly, national security. In this context, the energy security of a state becomes an important pillar of national, regional and global security, bringing safety, stability and well-being to consumers, as well as a cause of civil and/or armed conflicts. [ABSTRACT FROM AUTHOR]

The need to assess security risks on the national mining subsector, which owns and generates critical mining infrastructures, comes in the context in which the possible occurrence of energy blackout cases generates major issues of national interest, with European and NATO implications. As critical mining infrastructures may be vulnerable to internal and/or external threats, they must be thoroughly assessed in terms of ensuring and enhancing energy and national security in order to prevent potential national crises. The authors believe that addressing the national mining subsector is a strictly national security issue because the lack of coal or electricity produced by it can cause enormous damage to industry, the economy and state systems, which are almost entirely dependent on electricity. [ABSTRACT FROM AUTHOR]