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The best energy is the one that we do not produce - guliverhellgh - 10-04-2017 The best energy is the one that we do not produce [attachment=242] Introduction In every development process, there is a pressing need to increa se the availability of qualified human resources. Developing countries tend to experience a crucial lack in precisely this area. In most countries, education in science and technology is recei ving increasing attention, which indicates that development of the teaching process is considered an essential task. High quality science teaching is the best way to initiate scientific vocations. Science and technology help form values in the intellectual level and stimulate creative capabilities. Thus, they are indispensable tools For the perception of nature and the environment, as well as for understanding the contemporary world. The rational use of scientific and technological progress can contribute powerfully to solving development problems, particularly those of hunger and disease. Increasingly, science is becoming a direct productive force that underpins economic growth and social progress. Why renewable energies? The goal of education and training is to prepare a population for its future. In order to meet actual training and education needs, one must first examine societal needs for the first part of the 21st century, that is, tor the period 2000 to 2030. Energy is vital and essential for any society, but has two contradictory aspects. Firstly, it reflects the standard of living and the progress status of a nation. It also presents growing awareness concerning the level of risks that a given nation would face in attempting to satisfy its energy needs. The first half of the 21st century will certainly see rapid progress*" in both the level of energy consumption and m the diversification ot energy production methods, which can be lin ked to several lactors: Population growth especially in Asia, Latin America and Africa will lead to overall increases in energy consumption Ecological risks associated with some energy sources are becoming increasingly evident and worrisome. Two examples include the Earth surface warming due to the greenhouse effect cau sed by gas emissions'' and the uncertainty surrounding methods for long-term storage of nuclear residues. econotnic credibility Discussion ol this factor will be limited to the known tacts concerning the most important cases. Use ot geothermal and solar heat by ditferent techniques is competitive today within certain contexts, including wood. Hydro-electricity is an example ot a successful renewable energies case. Its economic charac teristics, which include an important initial investment followed by small operating expenses, can be found in many other cases. Wind generators connected to the grid have been shown to supply electricity at a competitive cost in the USA and in Europe, particularly m regions privileged by high wind speeds. Stand-alone photovoltaic systems allow for the 'micro-electntication' ot isolated rural zones m developing countries (modular power around 5 kW). In fact, they outperform both grid exten sion and diesels systems. |