Private company
Okinawa Electric Power Company
Logo: 沖縄電力, Public domain, via Wikimedia Commons3
Electric utility in Japan
The Okinawa Electric Power Company, Incorporated (沖縄電力株式会社, Okinawa Denryoku Kabushiki-gaisha), OEPC or Okiden (沖電) for short, is an electric utility with its exclusive operational area of Okinawa Prefecture, Japan. It is the smallest by electricity sales among Japan’s ten regional power utilities. For comparison, its electricity sales is approximately 1⁄40 of that of The Tokyo Electric Power Company.2 It is headquartered in Machinato.1 Wikipedia text CC BY-SA 4.0
Last updated Oct 21, 2026.
Overview
- HeadquartersMachinato1
- Websitewww.okiden.co.jp/en
- Legal formkabushiki gaisha1
See how the biggest companies compare on our leaderboards

The Okinawa Electric Power Company, Incorporated (沖縄電力株式会社, Okinawa Denryoku Kabushiki-gaisha), OEPC or Okiden (沖電) for short, is an electric utility with its exclusive operational area of Okinawa Prefecture, Japan. It is the smallest by electricity sales among Japan’s ten regional power utilities. For comparison, its electricity sales is approximately 1⁄40 of that of The Tokyo Electric Power Company. However, it is the largest by revenue among companies headquartered in Okinawa.2
Corporate structure
Okinawa Electric Power Company sits at the top of its group. 2 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.
- Okinawa Electric Power Company Machinato
- Okinawa Cellular Telephone Stake · 1.77% · Okinawa Prefecture
Built from subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.
What it owns
What Okinawa Electric Power Company reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.
Stakes and holdings (Wikidata)
Things Wikidata records the company as owning, with the share when stated.1
Subsidiaries and ownership
Also owns
From Wikidata.1
Acquisitions
- Succeeded Ryukyu Electric Power Corporation1
Timeline
- May 15, 1972Founded Founded1
Links
- Websitewww.okiden.co.jp1
- Websitewww.okiden.co.jp/en1
- X (Twitter)x.com/okiden_official1
- Facebookwww.facebook.com/okiden.jp1
- YouTubewww.youtube.com/channel/UCZIJs-eDZ4NStUAH3A2mRjQ1
- WikipediaOkinawa Electric Power Company
- More imagesWikimedia Commons
- WikidataQ2017226
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1
- 2
- 3Wikimedia CommonsOkinawa Electric Power Company logo by 沖縄電力, Public domain
- 4Wikimedia CommonsOkinawa Electric Power Company photo by Kattin, CC BY-SA 3.0