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The production of electricity and heat is inextricably linked to the emission of gases, dust and other substances harmful to the environment. The size of this issue depends on many factors. The most important ones are: the type of fuel used in the production of energy, the type and age of generating installations, the technology used and the type and effectiveness of purification systems. The basic problem of power industry is the need to generate the right amount of energy needed for economic development, while a...

The purpose of the study was to present a case study on the parameters of photovoltaic systems installed on different types of roof. These research studies were conducted in the Laboratory of Renewable Energy at the University of Pite?ti.The case study analyzed the production of electricity for different photovoltaic systems, in terms of construction and placement.Mainly, the parameters of these systems were checked in the same weather conditions, such as: temperature, humidity, solar radiation and the unit of are...