Operation and Control Challenges with Large Penetration of Renewable Energy Resources in the Indian Grid

India’s strides in renewable energy (RE) are evident, with substantial installed capacity and ambitious targets. This paper examines operational, maintenance, and control challenges arising from RE integration in India’s power sector. It specifically addresses protection challenges faced by transmission utilities due to RE integration, including issues with distance, carrieraided protection, directional protection, and over-voltage protection. Legacy algorithms of microprocessor-based relays at RE pooling stations pose additional challenges, but the paper discusses mitigation techniques employed by utilities. The analysis extends to operational and maintenance challenges at RE pooling stations and nearby facilities, emphasizing the multifaceted nature of these issues. Through detailed analyses and proposed solutions, the paper aims to enhance the reliability and adaptability of power systems amid the evolving RE landscape. It stresses the need for precise grid management strategies to tackle these challenges effectively. As a comprehensive resource, the paper provides insights for utility engineers, generators, regulators, and planners, fostering a deeper understanding of the unique hurdles faced by the Indian grid amidst extensive RE integration.