Wind Resource Assessment A Case Study On Dangla Wind Farm

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Energy is one of the most crucial inputs for socio-economic development. A rapid growthrnin energy demand and air pollution has increased the available options of energyproducingrnmethods inrnthernelectricrnindustry.rnrnCurrently, the wind energy potential of Ethiopia was estimated to be 10,000 MW. However,rnfrom these only eight percent of its capacity has been used in the last years. One of thernreasons for the low usage of wind energy is the unavailability of correct wind atlas in therncountry. Therefore, it is necessary to develop correct wind atlas for the entire country sornthat better sites used for installing wind power plants can be easily identified. Besides, windrnenergy projects could be planned and implemented in a short time. Hence, in this work, arnwind resource assessment is going to be carried out using WAsP at Dangla which plays anrnimportant role in identifying potential areas for wind energy applications in the given site. rnIn this study, three years of wind data which were recorded at a height of 10-meter a.g.l.rnin 15 minutes interval were used for the analysis. The results showed that the minimumrnwind speed was 0.12083 m/s whereas the maximum wind speed was 9.96389 m/s. The meanrnwind speed and power density at a height of 10 m a.g.l. were 1.8 m/s and 9 w/mrn2 rnrespectively. The most frequent wind direction was also found to be 210°. rnThe wind resource assessment was carried out using the Wind Atlas Analysis andrnApplication Program and the results showed that the maximum wind speed was availablernaround hills. Also, the net annual energy production of the site at a turbine height of 80 mrna.g.l. was found to be 282.726 GWh (or, 32.27 MW). The capacity factor of the farm was rnalso found to be 9.54% which in turn indicated that the site is classified as lower potential. rnThe result of the economic analysis showed that the Vestas V100-1.8 MW Grid streamerrnwind turbine yields the highest cost of 396,547 birr/kW at the site. The economic analysisrnof the site was analyzed using the current price of electricity in Ethiopia. The resultrnobtained showed that the Levelized cost of electricity was found to be 4.9 birr/kWh. Basedrnon the results obtained, it is possible to conclude that the project is not financialy feasiblernat the current price of electricity in Ethiopia.

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Wind Resource Assessment A Case Study On Dangla Wind Farm

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