Wind resources: The average wind speeds in Lombok are low. In the South, the average wind speed barely reaches 6 m/s and moving North to Rinjani, the average wind speeds are only 2 m/s. These low wind speeds call for wind turbines designed for these conditions. The Vestas V150-4.2 MW is an example of this. Its long blades (74 m) and large sweep area of 17,670 m2 make it possible to utilise energy in low wind conditions. Other manufactures have similar low speed turbines – such as the Siemens Gamesa SG 4.5-155.
Location: The sub-district of Jerowaru is chosen for the site analysed as this location has some of the highest wind speeds in Lombok, and the land covers are mostly dry land agriculture, which are assumed to be acquirable. The land covered is around 100 ha (~1 km2 ); however, most of the land can still be used for agriculture purposes.
Utilisation: An analysis of the power curve from a V150-4.2 MW turbine and the distribution of wind speeds at a chosen site, results in 3000 full load hours.
Capacity: Fluctuating power generation can in the current system be a challenge for PLN. However, economy of scale calls for higher capacity. A capacity of 50 MW is assessed to provide the best balance
