The 132 kV transmission line and 100 MVA, 33/132 kV transformer at the Kajra Solar Power Plant in Lakhisarai district, Bihar, have been successfully energised, officials confirmed.
Manoj Kumar Singh, Energy Department Secretary and Chairman-cum-Managing Director of Bihar State Power Holding Company Limited (BSPHCL), stated that the work was completed under the close supervision of Bihar State Power Generation Company Limited (BSPGCL) and Bihar State Power Transmission Company Limited (BSPTCL).
A new transmission line connecting the Kajra Solar Power Plant to Grid Sub-station Haveli Kharagpur and Grid Sub-station Lakhisarai has been commissioned. Alongside this, the 100 MW, 33/132 kV transformer at the plant has also been energised, ensuring continuous and uninterrupted power supply to consumers in the region, according to a government statement.
“This is a major step towards promoting solar energy in the state and strengthening the electricity system,” Singh said. He added that the solar plant will provide uninterrupted electricity during the day, and the battery energy storage system will supply power for 4 to 5 hours during peak demand periods.
A senior BSPGCL official noted that Kajra Solar Power Plant is one of the country’s largest solar energy projects with battery storage, marking a significant boost for green energy production in Bihar.
The project is being implemented in two phases. The first phase includes a 185 MW solar power plant paired with a 254 MWh battery energy storage system, constructed at an estimated cost of Rs 1,810 crore. The second phase involves a 116 MW solar plant with a 241 MWh battery system, at an estimated cost of Rs 1,055 crore, with completion targeted for January 2027.
Upon completion, the Kajra Solar Power Plant will have a total capacity of 301 MW, and the battery storage system will reach 495 MWh, significantly strengthening Bihar’s renewable energy infrastructure.
