Wind energy calculation examples pdf

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process. A worked example of a real wind farm is then provided and, fi nally, recommendations are made about the important matters that need to be tackled in the near future to help wind energy play its full part. Regional Wind Resources Naturally, wind energy developers are very interested in the energy that can be extracted from the wind, and 2) Deduce the efficiency coefficient Cp of the wind turbine at 10m/s. The density of air ρ = 1.225kg /m3. 3) Calculate the annual operating time D: The annual operating time is defined as the quotient of the energy bought back during a year (365 days) of operation of the installation by the maximum active power of the same installation (10 kW). Design of Alternative Energy Systems Wind Energy Calculations Effect of Elevation on Wind Speed To calculate the wind speed at one height, if it is known at another height, we can use n 1 2 2 1 h h v v = where n is the ground surface friction coefficient and takes on different values according to the nature of the terrain. Some example values are Spain also celebrates in Nov. 10, 2010 when the wind energy resources contribute 53% of the total generation of the electricity. For example, the European Union targets to meet 25 per cent of their demand from renewable by 2012. Wind is the world's fastest growing energy source today The global wind power capacity increases at least 40% every