To support the Indonesian government’s 23% target of renewable energy development by 2025, one of MENTARI’s activities is to provide full technical support to respond to any required subsidiary policies. It includes a study to explore a renewable energy quota system. This Guidelines for a Renewable Energy Quota System for Indonesia outlines a process framework and detailed guideline on how ministries and utilities can determine an RE quota, by considering largest size unit of RE possible in one system, the distance between plants, and the maximum variable renewable energy penetration that the system can handle.