Integration of Battery Energy Storage System to Increase Flexibility and Penetration Renewable Energy in Indonesia: A Brief Review

In recent years, emissions reduction to mitigate the worst effects of climate change has emerged as a primary objective shared by world organizations. Along with the high demand for electrical energy in Indonesia and the policy of raising the electrification ratio to 100 percent by the year 2025, it is anticipated that the electricity demand will expand more than seven times to a total of 1,611 TWh in the year 2050. Boosting the integration renewable energy sources (RES) is a step toward net-zero emissions and contributes as a source of energy supply in the electricity generation process. However, the problem arises because RES especially solar and wind energy are intermittency, highly dependent on nature, and leading to unstable load power supply risk. Using a battery energy storage system (BESS) is one way to overcome instability in the power supply and increase flexibility and RES penetration in Indonesia. This study will briefly discuss how implementing BESS can increase the flexibility and concentration of RES in Indonesia. Examining the trend and challenges in developing the BESS of the scope views the proposed future direction to implement BESS in Indonesia.