Widespread power outages across Java, Indonesia, have triggered concerns about the reliability of the island’s electricity grid. State-owned utility company PLN attributes the blackouts to technical disturbances. The SUSTAIN Indonesia Foundation, a think tank, views the disruptions as a warning sign and is advocating for accelerated investment in rooftop solar power systems (PLTS Atap). SUSTAIN argues that distributed renewable energy sources can enhance grid resilience and reduce dependence on centralized power plants. The organization believes that incentivizing rooftop solar installations could mitigate future disruptions and contribute to a more sustainable energy future for Java. This incident highlights the urgent need for diversification of energy sources and improvements to grid infrastructure in Indonesia.