Bihar State Power Holding Company Limited (or BSPHCL), also known as erstwhile Bihar State Electricity Board (or BSEB) is a state-owned electricity regulation board operating within the state of Bihar in India. Bihar State Electricity Board (BSEB) was established in 1958 as a statutory corporation under the Electricity (Supply) Act, 1948. As of November 2012, BSEB has nearly 1,700 officers and 14,850 employees. The derated capacity comes to just 530 MW. The BSEB was unbundeled on August 2, 2011. Power Finance Corporation was the main consultant for BSEB's restructuring.