Blackout prevention is the academic field and methodological approach focused on understanding, predicting, and mitigating conditions that lead to widespread, uncontrolled interruptions in electrical power supply across a grid. This domain encompasses the investigation of power system stability, transient dynamics, cascading failure phenomena, and the impact of diverse stressors such as equipment malfunction, natural disasters, cyber threats, and significant demand-supply imbalances. Key characteristics involve the development and implementation of analytical models, simulation techniques, preventive and corrective control algorithms, enhanced grid infrastructure resilience, and sophisticated monitoring and protection systems. Its primary significance is the maintenance of grid reliability and security, essential for supporting critical infrastructure, economic stability, and public welfare.