## 5 Conclusions and Recommendations  
Several software programs are publicly available for use, as are a significant number of studies on wind resource assessment. Accordingly, in this type of project and especially because the study site was an island, the most complex task is the installation of an anemometer tower. On Puna Island, the low-density wind resource is classified as marginal, with a well-defined variation by time of day and a long-term mean speed of 4.8 m/s. Wind availability peaks in the afternoon hours, and the lowest \begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline \multirow{3}{*}{**Turbine**} & **Valid Time** & **Hub Height** & \multicolumn{3}{c}{**Percentage of Time at**} & \multicolumn{3}{c}{**Simple Mean**} & \multicolumn{3}{c}{**Mean of Monthly Means**} \\  & **Time** & **Wind Speed** & **Zero** & **Rated Power** & **Net Power** & **Net AEP** & **NCF** & **Net Power** & **Net AEP** & **NCF** \\  & **Samples** & **(m/s)** & **Power** & **Power** & **(kW)** & **(kW)/yr)** & **(\%)** & **(kW)** & **(kW)/yr)** & **(\%)** \\ \hline \multicolumn{10}{c}{Vestas} \\ V126-3.3 & \multirow{2}{*}{3191} & \multirow{2}{*}{4.94} & \multirow{2}{*}{8.26} & \multirow{2}{*}{0} & \multirow{2}{*}{466.2} & \multirow{2}{*}{4,083,967} & \multirow{2}{*}{14.13} & \multirow{2}{*}{466.2} & \multirow{2}{*}{4,083,960} & \multirow{2}{*}{14.13} \\ MW IEC & & & & & & & & & \\ IIIA (90 m) & & & & & & & & & \\ \hline \multicolumn{10}{c}{Games} \\ G80-2.0 MW & \multirow{2}{*}{3191} & \multirow{2}{*}{4.82} & \multirow{2}{*}{13.33} & \multirow{2}{*}{0} & \multirow{2}{*}{175.1} & \multirow{2}{*}{1,533,961} & \multirow{2}{*}{8.76} & \multirow{2}{*}{175.1} & \multirow{2}{*}{1,533,962} & \multirow{2}{*}{8.76} \\ (80 m) & & & & & & & & & \\ \hline \multicolumn{10}{c}{GE 275-100} \\ (80 m) & & & & & & & & & & \\ \hline \multicolumn{10}{c}{Suzoln} \\ \multicolumn{10}{c}{S66-125} & \multirow{2}{*}{3191} & \multirow{2}{*}{4.82} & \multirow{2}{*}{13.89} & \multirow{2}{*}{0} & \multirow{2}{*}{104.5} & \multirow{2}{*}{915,088} & \multirow{2}{*}{8.36} & \multirow{2}{*}{104.5} & \multirow{2}{*}{915,084} & \multirow{2}{*}{8.36} \\ MW (80 m) & & & & & & & & \\ \hline \multicolumn{10}{c}{Vestas} \\ V100-1.8 & \multirow{2}{*}{3191} & \multirow{2}{*}{4.82} & \multirow{2}{*}{8.83} & \multirow{2}{*}{0} & \multirow{2}{*}{292.3} & \multirow{2}{*}{2,560,848} & \multirow{2}{*}{16.11} & \multirow{2}{*}{292.3} & \multirow{2}{*}{2,560,851} & \multirow{2}{*}{16.11} \\ MW (80 m) & & & & & & & & \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Power and energy of several wind turbine models. Source: the authors. Figure 18: Gross mean power output of the Vestas V126-3.3 MW wind turbine. Source: generated by the software. values occur in the morning hours. Electricity production might be possible; however, due to the low mean wind speed, wind turbines with a considerable blade diameter, equal to or greater than 100 m, would have to be used. Therefore, the power of such turbines would be on the order of megawatts. In this study, the use of the Vestas V126-3.3 MW wind turbine model was simulated. However, this type of wind turbine has an estimated cost of one million US dollars per megawatt, which might limit possible funding. Based on the mean power assessed in the simulation of this wind turbine model at low wind speed hours (see Figure 5), to generate 2.2 MW, which is currently the power installed on the island, approximately 10 wind turbines would be necessary. An alternative would be to concurrently operate a lesser number of wind turbines with diesel generators that are currently installed on the island, particularly during hours of low wind availability. In addition, because solar radiation peaks during the midday hours and subsequently decreases to zero at night, energy could be generated in the morning using a solar farm, whereas wind turbines would operate in the afternoon, evening, and night.