Background: Energy autonomy refers to the guaranteed energy availability by maximizing domestic potential. The success of the energy autonomy target requires dimensions of indicators for measurement, assessment, and evaluation. The purpose of the study is to determine the autonomy of Solar Power Plant management in Indonesia through indexing and to develop improvement strategies for management autonomy located in Jakarta, Bandung, and Yogyakarta. Methods: This research applied qualitative methods. The data from the informants were collected to obtain management autonomy measures that used scores and weights. A Strengths Weaknesses Opportunities and Threats matrix analysis establishes a strategy to increase autonomy. Results: The results showed that the value of the management autonomy index score was 2.79 ((from a maximum scale of 4.00), which was reasonable enough and equivalent to level three in the Capability Maturity Model. This level shows the capability to define the running process. It requires two steps of improvement or a strategy to achieve the optimal level, being able to perform process optimization for autonomy management (level 5). Based on the matrix analysis results, the appropriate approach is a strategy that improves weaknesses by maximizing opportunities in a quadrant III turn ground. Conclusios: The strategy was done by developing policies to enhance solar power plant stakeholder synergy in Indonesia and facilitate technology transfer to international solar power plant component producers. Autonomy in the management and control of solar power plants is essential so that there is no disruption on energy security in Indonesia. This study recommends evaluating or measuring the autonomy index for other energy sectors, especially to support the achievement of the energy mix target, which in turn aims to increase national energy autonomy and security.