Established as a special corporation funded by the government and Okinawa Prefecture, inheriting the operations of Ryukyu Electric Power Company under the Okinawa Development Special Measures Act.
Absorbed and merged five distribution companies, establishing a unified supply system for power distribution.
Achieved island-wide electrification (lighting of the Nago City Genka Great Wetland).
Commenced purchasing power from Ishikawa Coal-fired Power Plant, Inc.
Privatization.
Established a new symbol mark.
Decided to participate as an observer in the Electric Power Business Federation and Central Power Council.
Registered shares with the Japan Securities Dealers Association.
Listed on the Second Section of the Tokyo Stock Exchange and the Fukuoka Stock Exchange.
Okinawa main line commenced operation, and the main transmission system was dual‑route.
The distribution automation system began operation.
Our first coal‑fired power plant, Gushikawa Power Station Unit 1, began operation.
Gushikawa Power Station Unit 2 began operation.
Implemented a stock split (1.01 shares per share).
Signed a cooperation agreement with Taiwan Power.
Completed development of the integrated operation and distribution information system.
Ishikawa Thermal Power Plant obtains ISO 14001 certification
Implemented a stock split (1.02 shares for each share)
Officially joined the Electric Power Association
Kushikawa Thermal Power Plant obtains ISO 14001 certification
Makihara Thermal Power Plant obtains ISO 14001 certification
Officially joined the Overseas Power Survey Association
Unit 1 of Kanematsu Thermal Power Plant commenced operation
Listed on the First Section of the Tokyo Stock Exchange
Obtained ISO 9001:2000 certification (Head office, Tokyo branch, and all mainland branch offices)
Unit 2 of Kanematsu Thermal Power Plant commenced operation
Obtained ISO 9001:2000 certification company-wide (expanded certification scope): *In January 2014, the ISO 9001 certification was relinquished (quality management system activities continue)
ISO 9001:2000 certification obtained company-wide (scope expanded).
The entire Power Generation Division obtained ISO 14001 certification: *In September 2018, ISO 14001 certification was relinquished (environmental management system activities continue)
ISO 14001 certification obtained for the entire power generation department.
Implemented a stock split (1.05 shares for each share)
Implemented a stock split (1.1 shares for each share)
Call center began operation
First in Japan, introduced a collapsible wind turbine on Iwojima Island
Completion of construction of the Miyakojima Mega Solar Demonstration Research Facility
Unit 5 of Ishigaki Second Power Plant commenced operation
Abu Mega Solar Demonstration Research Facility commenced operation
Unit 1 of Yoshinoura Thermal Power Plant commenced operation
Yoshinoura Thermal Power Plant Unit 2 has begun operation.
Oogimi Wind Power Demonstration Research Facility has begun operation.
The 'Power Outage Information Email Distribution' and 'Power Outage Area Mapping Display on the website' services began operation during typhoon.
Yoshinoura Multi-Gas Turbine Power Plant started operation.
Implemented a stock split (1.5 shares per share).
Operation of the submarine cable between Okinawa Main Island and Tokashiki Island began.
Implemented a stock split (1.5 shares per share).
Implemented a stock split (1.1 shares per share).
Operation of the backup power supply command center began.
Operation of the Nishi-Naha–Tomari main line began.
Operation of the Ishikawa Thermal Power Plant's offshore fuel oil delivery hub began.
Implemented a stock split (1.25 shares per share).
Implemented a stock split (1.05 shares per share).
To commemorate the 50th anniversary of its founding, Okinawa Electric Power's 50-year history was published in June 2023.
Okinawa Electric Power will exhibit at the virtual booth of the 21st Electroheat Symposium. The booth will showcase energy-saving solutions through electrification, decarbonization initiatives, and services that help solve corporate challenges.
Okinawa Electric Power Company published a blog post announcing that its company baseball team will compete in the Intercity Baseball Tournament. The article is available in the blog section of the company’s official website.
Okinawa Electric Power has provided guidance on handling inquiries about power outages during typhoons. Customers are advised to first check their surroundings, then operate the circuit breaker. If the issue persists, they can get information through chat or LINE.
Okinawa Electric Power Co., Inc. has published a case study on its energy-saving support service at Ryukyu Glass Village RGC Co., Ltd., introducing details of the company’s energy conservation initiatives.
Okinawa Electric Power Company has published a case study on the implementation of Karyluf by Gulf Life Ark Corporation.
Okinawa Electric Power has been selected as a diagnostic agency for the regional energy utilization optimization and energy efficiency diagnosis expansion project, and will conduct energy efficiency diagnostics using subsidies for customers in the prefecture.
Okinawa Electric Power Company has published a blog article including a practical guide on BCP (Business Continuity Planning) related to energy.