Empowering local sustainability: assessing small-scale wind energy potential offshore Enggano Island for independent renewable communities

Abstract

Enggano is an island in North Bengkulu Regency. Last year, the island only had electricity for 14 hours a day, supplied by generators using fuel oil (BBM). The use of fuel oil is considered inefficient because it is difficult to transport to Enggano. In addition, fuel oil is a non-renewable energy source. The use of new and renewable energy can be a solution to these problems because harvesting energy from around the Enggano site itself does not require a lot of money for shipping. One of the new and renewable energy potentials to be analyzed in Enggano is wind energy. Enggano Island has wind speeds of more than 4.0 m/s or medium wind speeds. Therefore, the wind around Enggano Island deserves further energy analysis. The research started with the selection of data collection points. Secondary wind speed and direction data were then obtained from ECMWF over 20 years. The data will then be compared to NASA Power data. The wind data will be used as a reference for the calculation of the wind energy potential offshore Enggano Island. In addition to the wind potential data, the energy needs of the island will be analyzed in the coming years. In this way, the planning of the wind turbines will be in line with the needs of the Enggano Island community to become an energy-independent community. Based on all the analyses carried out, 2,422 MWh of energy will be required every year to meet the needs of around 1300 houses on Enggano Island. To meet this demand, 40 wind turbines with a capacity of 20 kW and a diameter of 13.1 m can be used.