The Bihar government has signed a memorandum of understanding (MoU) to procure electricity from the country’s largest solar power project integrated with a battery energy storage system (BESS) at Kajra in Lakhisarai district, marking a significant milestone in the state’s renewable energy journey and efforts to ensure round-the-clock green power supply.
The MoU was executed between Bihar State Power Generation Company Limited (BSPGCL) and the state’s North and South Bihar power distribution companies, securing long-term offtake of electricity from the 301 MW solar power project, which is being developed in two phases and integrated with 523 MWh of battery storage capacity.
Currently under construction, the project is scheduled for full commissioning by January 2027. Phase 1 includes 185 MW of solar capacity coupled with 282 MWh of BESS, while Phase 2 will add 116 MW of solar capacity and 241 MWh of storage, taking the total installed solar capacity to 301 MW.
With an investment of over ₹2,865 crore, the project spans 1,232 acres and is positioned as a flagship renewable energy initiative for Bihar. The integration of battery storage will enable dispatchable renewable power, allowing surplus solar energy generated during the day to be stored and supplied during peak evening demand hours, thereby enhancing grid reliability and reducing dependence on conventional power sources.
State officials said the project will play a crucial role in balancing grid fluctuations, improving peak-load management, and supporting Bihar’s compliance with its Renewable Purchase Obligation (RPO) targets. The initiative also aligns with India’s broader clean energy transition, including the national goal of achieving 500 GW of renewable energy capacity by 2030.
The Kajra solar-plus-storage project forms a key component of Bihar’s wider renewable energy roadmap, under which investments of nearly ₹50,000 crore are underway across the energy sector. Once commissioned, the project is expected to serve as a benchmark model for large-scale solar and battery storage deployment in India.
