Key dates in The Denki Shimbun’s history
| 1907 |
 First edition of the Electrical News, forerunner of The Denki Shimbun (8-page, A4-size, periodical published every 10 days). |
|---|---|
| 1923 | During the Great Kanto Earthquake, fire destroys the printing works, temporarily halting operations. Newspaper relaunched with rotary presses replacing planographic printing. |
| 1927 | Number of editions increased to six per month |
| 1940 | All influential electricity-related newspapers intrgrated to form The Denki Shimbun |
| 1941 | The Pacific War begins |
| 1942 | Following the Newspaper Integration Decree, the Japan Electric Association (JEA) takes over publication of The Denki Shimbun. |
| 1944 | Paper shortage reduces publication to three times per week |
| 1945 | The Pacific War ends |
| 1951 | Electricity industry restructured and nine regional electric power companies created. |
| 1952 | The Denki Shimbun published every other day |
| 1956 | Events held in advance of 50th anniversary. System established dispatching reporters to branch offices. |
| 1957 | The Denki Shimbun transitions to a daily publication. |
| 1966 | Contract with Jiji Press. Special correspondents dispatched overseas |
| 1975 | Move to new company offices (present Yurakucho Denki Bldg) |
| 1997 | The Denki Shimbun website launched. |
| 1998 | Computer-based content management system instituted. |
| 1999 | Image data management system constructed. |
| 2001 | Exhibitions of photographs heralding 50 years of electric power held at 10 locations around Japan attract a total of 70,000 visitors. |
| 2003 | Newspaper printing operation opened in Osaka. |
| 2005 | New image data management system (total digitalization of photo operations)established and image data filing system upgraded. |
| 2006 | 100th anniversary of first edition of The Denki Shimbun commemorated with an international symposium in Tokyo and other events. Energy education awards inaugurated and awards ceremony held. Title redesigned and editorial content revamped for 100th anniversary. Content management system updated. |
| 2017 | The Denki Shimbun Digital rolled out. |
