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The FOTOCAL automated system performs the calculation of the dimensions and the electricity generation of the photovoltaic module that it is needed for the energy demand according to outlined situation; it also establishes the price of the required technology. With the results of this software, it is possible to establish the economic resources for the installation of this technological proposal. This program has been used for the determination of the sun photovoltaic energy potential of agricultural facilities, projects of scientific research, thesis for the obtaining of the title of mechanized system engineering, master and diploma work. [ABSTRACT FROM AUTHOR]

The present work was carried out in the Institute of Animal Science (ICA), located in San José de las Lajas, Havana county; in the development livestock unit (block), with the objective of determining the energetic, productive, and environmental contribution of the multi shovel windmills as an alternative source of water supply. To determinate the wind speed characteristics, available eolic power, power transmission efficiency and non-emitted contamination magnitude by the use of low speed multi shovel windmill. It was used the Danish Association of Eolic Industry methodologics. It was obtained a safe of 5 882,9 liters/year (4 929 kg/year) of fuel by the substitution of pumping electricity and water transportation by a water tanker, it was avoided the emission of 17,27 t/year of atmosphere pollutants. It was obtained an economic gain of 5882.94 peso/year and the investment will be recovered in 1,7 years. [ABSTRACT FROM AUTHOR]