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August 31, 2021updated 17 Sep 2021 11:49am

Higashi Yamaguchi Substation, Japan

By Carmen

Higashi Yamaguchi Substation is a 500/220kV substation located in Higashi Yamaguchi, Kunigami, Japan. The construction works on Higashi Yamaguchi Substation began in 2017. The project was commissioned in 2019.


The Higashi Yamaguchi Substation project is a new substation being operated by The Chugoku Electric Power.

The designed voltage level of the project is 500/220kV, while the operating voltage level is 500/220kV. The step-in voltage of the substation is 500kV and the step-out voltage is 220kV. The substation capacity is 1,000MVA.

Higashi Yamaguchi Substation has received approval from The Energy Conservation Center to undertake the works on the project.

About The Chugoku Electric Power

The Chugoku Electric Power Co Inc (Chugoku Electric) is an integrated energy utility. It generates, transmits and distributes electricity and supplies natural gas and other fuels. The company produces power using thermal, hydro, nuclear and renewable energy sources. Chugoku Electric also provides internet connection, telephone, broadcasting and Ethernet telecommunications network services; and environmental harmony creation, business and lifestyle support and electricity related support services. It is owned by Japan Trustee Services Bank Ltd, Yamaguchi Prefecture, The Master Trust Bank of Japan Ltd and others.


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.

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