Japan Electric Power Exchange
Company of Japan
Japan Electric Power Exchange, Public Interest incorporated organisation (Japanese:一般社団法人日本卸電力取引所（にっぽんおろしでんりょくとりひきしょ)、abbr: JEPX）is an exchange that facilitates with spot and forward transactions of electrical power by power among power utilities in Japan. Formed as an intermediary corporation in November 2003, it was based on the recommendation of the same year by the Electric-power Industry Sub-committee to form an electric power wholesale market. In 2004 it invited members for its central committee and in 2005 April 1, commenced transacting in wholesale power transactions. Later on, in November 2008, it also started a Green-power exchange. Pursuant to the change in Japan's corporate law for public interest organisations, it is now registered as a "Public Interest Incorporated Organization".
Major constituent companies
It is mandatory to be a registered member in order to be able to conduct transactions. As of October 2017 there are 127 registered companies.
The public source identifies “Japan Electric Power Exchange” as company of Japan. This brief keeps that definition visible, then builds a research path around Japan, Electric and Power.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Japan Electric Power Exchange”, the useful work is to connect “company of Japan” to the records capable of establishing context and consequence.
Contemporary correspondence, administrative files and participant testimony can test how later narratives organized the event or institution. The source revision retrieved here is dated Jan 9, 2026. The linked authority identifier is Q11507476. None of the 2 selected statements returned an explicit reference. The first chronological checks are 2003, 2004, 2005 and 2008.
Later summaries often reconcile disputed chronology or motive more neatly than the contemporary record permits. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Compare institutional narratives with records created by participants and affected communities. Dates and formal titles are useful anchors, but not substitutes for context.
- Event chronology
- Institutional context
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Contemporary correspondence, government or organizational records, oral histories and cited historical scholarship.
Three-step research path
- Establish the record: confirm the title “Japan Electric Power Exchange”, its source revision and the description used here.
- Expand the search: follow Japan Electric Power Exchange primary sources, Japan Electric Power Exchange archive and Japan research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Japan Electric Power Exchange”?
- What chronology connects this entry to wider political or social change?
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This entry incorporates text from “Japan Electric Power Exchange” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.