Last Updated on January 5, 2026 by Author
The Kajra Solar Power Plant in Lakhisarai district, Bihar has successfully energised its 132 kV transmission line and a 100 MVA, 33/132 kV transformer, marking a significant advancement for solar energy deployment and grid integration in the state.
The new transmission link connects the solar plant to the grid substations at Haveli Kharagpur and Lakhisarai, enabling reliable evacuation of solar power into Bihar’s electricity network. The development will help deliver continuous solar energy during daylight hours and, coupled with the plant’s battery energy storage system (BESS), 4–5 hours of power supply during peak demand periods even when sunlight is unavailable.
Manoj Kumar Singh, Secretary of the Energy Department and Chairman-cum-Managing Director of the Bihar State Power Holding Company Limited, said the energisation represents a major step forward for solar energy in the state and strengthens the reliability of the electricity system.
The project’s first phase includes a 185 MW solar array and a 254 MWh battery storage system, constructed at an estimated cost of about ₹1,810 crore. The second phase will add 116 MW of solar capacity and a 241 MWh BESS, targeted for completion by January 2027. Once fully operational, the plant will have a total solar capacity of 301 MW and a storage capacity of 495 MWh, making it one of India’s largest integrated solar-plus-storage facilities.
