Osaka Gas and Electricity Supply Board (ESB) have completed the sale of their ownership interest in Bizkaia Energia SL (BESL) to ArcLight Capital Partners LLC, a US based energy investment fund.

Osaka Gas participated in BESL, a 755MW power generation plant located in Amorebieta-Etxano in Spain, upon its start of commercial operation in 2005. Osaka Gas and ESB each held 50% equity interest in the IPP plant.