The Kajra Solar Power Project located in Lakhisarai district of Bihar has successfully energised its 132 kV transmission line along with a 100 MVA, 33/132 kV power transformer, marking an important step towards strengthening renewable power evacuation in the region.
The newly energised transmission line has been integrated with grid substations at Haveli Kharagpur and Lakhisarai. This connectivity enables smooth and reliable transfer of solar energy to the state grid, supporting uninterrupted electricity supply for nearby areas. The system has been designed to allow direct daytime solar power injection while also providing an additional four to five hours of electricity during peak demand periods through the project’s battery energy storage system.
Phase I of the Kajra project includes 185 MW of solar generation capacity combined with 254 MWh of battery storage, with an estimated investment of approximately Rs 18.10 billion. The second phase will add another 116 MW of solar capacity along with 241 MWh of battery storage, involving an investment of around Rs 10.55 billion. Phase II is scheduled to be completed by January 2027.
The progress of the project is being overseen by Bihar State Power Generation Company Limited and Bihar State Power Transmission Company Limited. Once fully operational, the Kajra Solar Project is expected to play a key role in enhancing grid stability, improving energy reliability, and supporting Bihar’s transition towards cleaner and more sustainable power sources.

