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Integration of Intermittent Renewable Energy Source (IRES) to The West Kalimantan Grid

West Kalimantan is an island in Indonesia that has a great opportunity to integrate the renewable energy such as solar PV and wind to the existing grid. One significant nature of using these renewable energy is intermittency. The intermittent renewable energy source (IRES) penetration level to the West Kalimantan Grid can cause significant impact on frequency and voltage stability. This condition could bring the system to experience worst condition even blackout. IRES penetration based on worst case scenario in peak load hours and off-peak load hours, dry season, loss of largest generation, and penetration in most sensitive bus was simulated by considering the frequency and voltage limit. The simulation result showed the IRES penetration level into the West Kalimantan grid are approximately 16,00% in peak load hours and 7,98% in off-peak load hours.