Overview The Solar Energy Corporation of India (SECI) is developing the country's largest single Battery Energy Storage System (BESS) , with a capacity of 600/1200 MW in the Nandyal district of Andhra Pradesh. This project aims to enhance grid stability and facilitate the integration of renewable energy sources. Key Developments Project Details Location: Nandipadu village, Kolimigundla mandal, Nandyal district Land Area: 38.4 acres Implementing Agency: Solar Energy Corporation of India (SECI) Project Objectives Supply 1,200 MW of power to major cities during peak demand or emergency situations. Store power generated from renewable sources like solar and wind. Improve grid stability and reliability. Timeline and Support Planned Commencement: December 2026 The district administration is providing full support for the project. Impact and Significance Economic Development The project is expected to attract significant investments and boost the Gross State Domestic Product (GSDP) of the Nandyal district. It will also stimulate industrial development in the region. Energy Security By storing power from renewable sources, the BESS will enhance energy security and reduce reliance on conventional power sources during peak demand. UPSC Relevance GS Paper 3: Infrastructure and Energy This project is highly relevant to GS Paper 3 , specifically topics related to Infrastructure Development , Energy , and Economic Development . It demonstrates the government's focus on promoting renewable energy and enhancing grid infrastructure. Key Concepts Battery Energy Storage System (BESS): A crucial technology for integrating renewable energy and ensuring grid stability. Solar Energy Corporation of India (SECI): A key player in promoting renewable energy development in India. Important Facts The project is located in Nandyal district, Andhra Pradesh . The capacity of the BESS is 600/1200 MW . The project aims to supply 1,200 MW of power during peak demand. SECI is seeking land for 665 kV towers and 765 kN transmission lines .