JERA
thermal power company in Japan
JERA (Japanese: 株式会社JERA, romanized: Kabushikigaisha JERA) is a 50-50 joint venture between TEPCO Fuel & Power, a wholly owned subsidiary of Tokyo Electric Power Company, and Chubu Electric Power, founded in April 2015. The company assumed ownership and operation of all of Tokyo Electric and Chubu Electric thermal power stations, giving it a total output of approximately 67 GW (including capacity under construction), which made it Japan's largest power generation company. The electricity generated is wholesaled to retail electric utilities such as TEPCO Energy Partner and Chubu Electric Power, and is not supplied directly to consumers. Fossil fuels comprised 97% of JERA’s global installed power generation capacity and nearly all domestic operations, while renewables represented 3% globally and 0.2% in Japan as of FY2023.
Background
The concept of JERA was floated immediately after the Fukushima Daiichi nuclear disaster by a group of young managers within Tokyo Electric, who sought to separate the thermal power generation portion of the company from the nuclear sector (together with the legal and fiscal responsibility for the accident) to ensure Tokyo Electric's survival. The idea was vehemently opposed by Tokyo Electric's chairman; however, by 2012 Tokyo Electric was facing imminent bankruptcy over damage compensation claim and the costs of decommissioning the Fukushima nuclear plants, as well as high costs for fossil fuel to make up the power generation shortfall from its 17 idled nuclear reactors. In addition, many of its thermal power plants were obsolete, and with Tokyo Electric's plummeting credit rating, it was deemed unlikely and the necessary funding could be secured for revamping or construction.
From March 2014, Tokyo Electric began to solicit partners for a strategic alliance. Meanwhile, Nagoya-based Chubu Electric was eager to expand into the Kanto region and had been receiving many enquiries from Kanto-based users unhappy with Tokyo Electric's increasing rates. However, efforts to enter the Kanto region and to compete against Tokyo Electric were hampered by the Japanese government's unwritten regulations creating regional electric generation monopolies.
This brief starts where responsible research should: with the source description of “JERA” as thermal power company in Japan. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the history & society register because the source frames it as thermal power company in Japan. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Contemporary correspondence, administrative files and participant testimony can test how later narratives organized the event or institution. The source revision retrieved here is dated Jun 15, 2026. The linked authority identifier is Q21013478. The first chronological checks are 2015, 2012 and 2014.
Institutional narratives can privilege the records that survived while minimizing voices that were never formally collected. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. 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
- Locating named record creators
Contemporary correspondence, government or organizational records, oral histories and cited historical scholarship.
Three-step research path
- Establish the record: confirm the title “JERA”, its source revision and the description used here.
- Expand the search: follow JERA primary sources, JERA archive and JERA 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 “JERA”?
- Who created the surviving record, and for what administrative purpose?
- Which voices are present, absent or mediated by the institution?
Search terms from this dossier
This entry incorporates text from “JERA” 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.