Description of the Mihama Power Plant Unit 3 regular inspection progress, including progress and implementation of countermeasures. On September 15, parallel startup planned, with safety prioritized as inspections proceed steadily.<\/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,"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":"\u95a2\u897f\u96fb\u529b\u682a\u5f0f\u4f1a\u793e","jir_importance":"\u2605\u2605\u2605\u2606\u2606","jir_publication_date":"2026-09-01","jir_source_link":"https:\/\/japanir.jp\/wp-content\/uploads\/2026\/09\/9503-20260901-01.pdf","jir_short_summary":"Description of the Mihama Power Plant Unit 3 regular inspection progress, including progress and implementation of countermeasures. On September 15, parallel startup planned, with safety prioritized as inspections proceed steadily.","jir_summary":"### Section Heading\nThis document reports the latest progress and the status of countermeasure implementation regarding the Mihama Power Plant Unit 3 regular inspection process. Following the steam leak in May, the 29th regular inspection began in June, and countermeasures such as replacing the upper turbine room closure cap have been implemented. At present, progress is on schedule, and the reactor is scheduled to be brought online in parallel on September 15. Going forward, maintenance of equipment where high-temperature, high-pressure steam and water flow is involved will be thoroughly prioritized for safety as the priority in advancing inspections.\n\n### Section 2 Heading\nThis regular inspection aims to verify safety measures and strict adherence to procedures, while advancing startup preparations and continuing countermeasures based on the investigation of the steam leak cause. The parallel date will be confirmed depending on the results of the upcoming work process planning.","jir_financial_highlights":"Unknown: Unknown (Unknown)","jir_category":"","jir_hashtags":"#KansaiElectricPower, #RegularInspection, #MihamaNuclearPowerPlant, #SteamLeakResponse","jir_key_figures":"Power plant name: Mihama Nuclear Power Plant Unit 3 (rated output 826 MW, rated thermal output 2,440 MW)\nParallelization date: 2026-09-15\nSteam leak response from high-pressure turbine: Replacement of the upper turbine room closure cap implemented","jir_meta_title":"Kansai Electric Power Company: Mihama Nuclear Power Plant Unit 3 Regular Inspection Process Disclosure | September 2026","jir_meta_description":"Kansai Electric Power Company discloses progress and countermeasures for the Mihama Nuclear Power Plant Unit 3 regular inspection. Includes status of steam leak countermeasures and parallelization on September 15, with forthcoming maintenance plans.","jir_og_title":"Kansai Electric Power Company: Mihama Nuclear Power Plant Unit 3 Regular Inspection Process Disclosure","jir_og_description":"Report on progress of the Mihama Nuclear Power Plant Unit 3 regular inspection and steam leak countermeasures. Parallelization planned for September 15, with future maintenance policy explained.","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":"disclosure_update","footnotes":""},"sector":[],"importance":[],"class_list":["post-109223","ir_release","type-ir_release","status-publish","hentry"],"yoast_head":"\n