Announced the planned reactor start-up and commencement of adjustment operation for Mihama Unit 3. Cause traced to a penetration hole resulting from insulation material, and a corrective measure was implemented to clarify the mounting orientation of the exterior plate. Reactor start-up is scheduled for October 10, with criticality, start-up, and comprehensive load performance tests to be conducted sequentially.<\/p>\n","protected":false},"comment_status":"open","ping_status":"closed","template":"","meta":{"Ticker":"","DATE":"","longName":"","company_name_ja":"","fullTimeEmployees":0,"address":"","phone":"","website":"","industry":"","sector":"","regularMarketPrice":0,"financialCurrency":"","marketCap":0,"fiftyTwoWeekLow":0,"fiftyTwoWeekHigh":0,"epsTrailingTwelveMonths":0,"epsForward":0,"bookValue":0,"totalRevenue":0,"OperatingIncome":0,"operatingMargins":0,"NetIncome":0,"profitMargins":0,"ebitda":0,"trailingPE":0,"forwardPE":0,"priceToBook":0,"returnOnEquity":0,"recommendationMean":0,"recommendationKey":"","targetMeanPrice":0,"numberOfAnalystOpinions":0,"analyst_earnings_data":"","dividendRate":0,"dividendYield":0,"payoutRatio":0,"totalEsg":0,"environmentScore":0,"socialScore":0,"governanceScore":0,"title":"","providerPublishTime":"","link":"","longBusinessSummary":"","longBusinessSummary_ja":"","quarterly_revenue":0,"quarterly_net_income":0,"quarterly_operating_profit":0,"enterprise_value":0,"price_fetched_at":"","company_officer_1_name":"","company_officer_1_title":"","company_officer_2_name":"","company_officer_2_title":"","company_officer_3_name":"","company_officer_3_title":"","company_officer_4_name":"","company_officer_4_title":"","company_officer_5_name":"","company_officer_5_title":"","company_officers_update_time":"","get_dividend_history_year1":0,"get_dividend_history_year2":0,"get_dividend_history_year3":0,"get_dividend_history_year4":0,"get_dividend_history_year5":0,"get_dividend_history_year6":0,"get_dividend_history_year7":0,"get_dividend_history_year8":0,"get_dividend_history_year9":0,"get_dividend_history_year10":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"jir_stock_code":"9503","jir_company_name":"The Kansai Electric Power Company, Incorporated","jir_importance":"\u2605\u2605\u2605\u2605\u2606","jir_publication_date":"2026-10-09","jir_source_link":"https:\/\/japanir.jp\/wp-content\/uploads\/2026\/10\/9503-20261009-01.pdf","jir_short_summary":"Announced the planned reactor start-up and commencement of adjustment operation for Mihama Unit 3. Cause traced to a penetration hole resulting from insulation material, and a corrective measure was implemented to clarify the mounting orientation of the exterior plate. Reactor start-up is scheduled for October 10, with criticality, start-up, and comprehensive load performance tests to be conducted sequentially.","jir_summary":"### Business Operations Update\nThe Kansai Electric Power Company, Incorporated announced the planned reactor start-up and commencement of adjustment operation for Mihama Unit 3. As a result of the cause investigation, a penetration hole caused by incompatible mounting between insulation material and the exterior plate was identified, and a measure to clarify the mounting direction of the exterior plate will be implemented. Reactor start-up is scheduled for October 10, 2026, and the start of adjustment operation is also planned for the same day, with full commercial operation targeted for November 4, 2026.\n\n### Schedule and Impact\nStart-up and reaching criticality are scheduled for October 10, and completion of the comprehensive load performance test is scheduled for November 4. The implemented measure aims to improve the reliability of the feedwater system and is expected to contribute to the safety and stable operation of the equipment. Specific financial impacts have not been disclosed, but the resumption of operations and recovery of generation capacity will contribute to business operations.","jir_financial_highlights":"Unknown: Unknown (Unknown)","jir_category":"","jir_hashtags":"#TheKansaiElectricPowerCompany, #MihamaPowerStation, #NuclearPower, #BusinessOperationsUpdate","jir_key_figures":"Planned reactor start-up date: 2026-10-10\nPlanned start date of adjustment operation: 2026-10-10\nPlanned full commercial operation restart date: 2026-11-04","jir_meta_title":"The Kansai Electric Power Company, Incorporated \u2014 Planned Reactor Start-up and Adjustment Operation for Mihama Unit 3\uff5cOctober 2026","jir_meta_description":"The Kansai Electric Power Company, Incorporated announced the planned reactor start-up and commencement of adjustment operation for Mihama Unit 3. The cause was a penetration hole in insulation material and countermeasures have been implemented. Start-up is scheduled for October 10, 2026, with comprehensive load performance testing aimed to conclude by November 4, 2026.","jir_og_title":"Announcement of Planned Start-up for Mihama Unit 3","jir_og_description":"The Kansai Electric Power Company, Incorporated has announced the planned reactor start-up and commencement of adjustment operation for Mihama Unit 3, detailing the cause, corrective measures, and upcoming schedule.","jir_og_image_url":"\/assets\/og\/company-general_ir.jpg","jir_chart_data_collection":"[]","ir_related_company":7311,"ir_release_date":"","ir_type":"","ir_is_new":false,"ir_document_url":"","jir_ir_type":"business_update","footnotes":""},"sector":[],"importance":[],"class_list":["post-128820","ir_release","type-ir_release","status-publish","hentry"],"yoast_head":"\n