Ooi Bulk Line is a 500kV overhead line with a length of 1.9km from Ooi Nuclear Power Plant,Oi, Fukui, Japan, to Japan.

The project, which is currently under construction, is expected to be commissioned in 2021.


Ooi Bulk Line is an overhead line that will be operated by The Kansai Electric Power. The line will carry alternating current (AC) through double circuit cable.

The development of the Ooi Bulk Line project has been approved by the The Energy Conservation Center.

Ooi Bulk Line project development status

The construction works on the Ooi Bulk Line project were commenced in 2019 and commissioning is expected in 2021.

About The Kansai Electric Power

The Kansai Electric Power Co Inc (KEPCo) is an integrated power utility. It produces, supplies electricity and thermal energy; procures and sells natural gas. The company generates electric energy using natural gas, nuclear, coal, oil, wind, hydro and solar sources. Through long, medium, and short terms and spot procurement contracts and other types of transactions, KEPCo procures liquefied natural gas, and processes and supplies that to customers using pipeline networks. It also provides IT and communications services including optical internet, optical telephone and optical television to household and corporate customers.


All publicly-announced T&D Line & Substation projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects is sourced through secondary information sources such as country specific utility players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.