原子力発電所の廃止措置の日本市場（2026年～2034年）

• 英文タイトル：Japan Nuclear Power Reactor Decommissioning Market Report by Reactor Type (Pressurized Water Reactor, Pressurized Heavy Water Reactor, Boiling Water Reactor, High-temperature Gas-cooled Reactor, Liquid Metal Fast Breeder Reactor, and Others), Application (Commercial Power Reactor, Prototype Power Reactor, Research Reactor), Capacity (Below 100 MW, 100-1000 MW, Above 1000 MW), and Region 2026-2034

• レポートコード：SR112026A16043 • 出版社/出版日：IMARC / 2026年1月 • レポート形態：英語、PDF、約100ページ • 納品方法：Eメール（納期：3日） • 産業分類：エネルギー

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レポート概要

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日本の原子力発電所廃炉市場の規模は、2025年に3億9,610万米ドルに達しました。今後、IMARC Groupは、同市場が2034年までに5億4,060万米ドルに達し、2026年から2034年にかけて年平均成長率（CAGR）3.52%で成長すると予測しています。数多くの技術革新、厳格な安全基準、インフラの老朽化、国際的な協力、そして市民参加への注力などが、市場を牽引する主な要因となっている。 原子力発電所の廃止措置は、発電所の運転寿命の終焉を告げる、複雑かつ多面的なプロセスである。これには、施設および関連インフラの体系的かつ安全な解体が含まれ、放射性物質が人体の健康と環境の両方を保護する形で管理、封じ込められ、最終的に処分されることが保証される。原子力発電所の廃止措置の決定は、発電所の老朽化、規制要件、あるいはエネルギー政策の転換など、様々な要因から生じ得る。理由の如何にかかわらず、廃止措置プロセスは厳格に規制され、綿密に計画された取り組みであり、緻密なプロジェクト管理、厳格な安全対策、そして厳しい環境基準の遵守が求められる。原子力発電所の廃止措置には、除染、解体、廃棄物管理、および敷地復元を含むいくつかの主要な段階がある。これらの各段階は、作業員への放射線被ばくを最小限に抑え、放射性物質の放出を防止し、敷地を他の用途や長期モニタリングに適した状態に復元するために、細心の注意を払って実施されます。 日本の原子力発電所廃炉市場の動向： 日本の原子力発電所廃炉市場は、規制上の要請、技術の進歩、そして原子力発電の遺産を管理するという取り組みなど、複雑な要因の相互作用に牽引され、重要かつ発展を続ける分野として台頭しています。日本の原子力発電所廃炉市場は、規制上の要請、技術の進歩、そして原子力発電の遺産を管理するという取り組みなど、複雑な要因の相互作用に牽引され、重要かつ発展を続ける分野として台頭しています。これに加え、厳格な安全基準および規制遵守基準が地域市場を牽引しています。さらに、日本の原子炉は老朽化が進み、運転寿命の終盤を迎えています。こうした老朽化したインフラは、施設の安全な解体および除染に取り組む廃止措置サービス事業者にとって、課題であると同時に機会でもあります。市民との対話と透明性は、日本の原子力廃止措置の取り組みにおいて中心的な要素となっています。これにより、今後数年間で地域市場がさらに拡大すると予測されます。 日本の原子力発電炉廃炉市場のセグメンテーション： IMARC Groupは、市場の各セグメントにおける主要な動向の分析に加え、2026年から2034年までの国別予測を提供しています。当社のレポートでは、市場を原子炉の種類、用途、容量に基づいて分類しています。 原子炉の種類に関するインサイト： 加圧水型原子炉 加圧重水型原子炉 沸騰水型原子炉 高温ガス炉 液体金属高速増殖炉 その他 本レポートでは、原子炉タイプに基づく市場の詳細な分類と分析を提供しています。これには、加圧水型原子炉、加圧重水型原子炉、沸騰水型原子炉、高温ガス炉、液体金属高速増殖炉、およびその他が含まれます。 用途別分析： 商用発電用原子炉 実証用発電原子炉 研究用原子炉 本レポートでは、用途に基づく市場の詳細な分類と分析も提供されています。これには、商用発電用原子炉、実証用発電原子炉、および研究用原子炉が含まれます。 出力別インサイト： 100 MW未満 100～1000 MW 1000 MW超 本レポートでは、出力に基づく市場の詳細な分類と分析も提供されています。これには、100 MW未満、100～1000 MW、および1000 MW超が含まれます。 本レポートでは、関東、関西・近畿、中部、九州・沖縄、東北、中国、北海道、四国の各主要地域市場についても包括的な分析を行っています。 競争環境： 本市場調査レポートでは、市場の競争環境に関する包括的な分析も提供しています。市場構造、主要企業のポジショニング、主要な成功戦略、競争ダッシュボード、企業評価クアドラントなどの競争分析がレポートで網羅されています。また、すべての主要企業の詳細なプロフィールも掲載されています。

Japan nuclear power reactor decommissioning market size reached USD 396.1 Million in 2025. Looking forward, IMARC Group expects the market to reach USD 540.6 Million by 2034, exhibiting a growth rate (CAGR) of 3.52% during 2026-2034. Numerous technological innovations, stringent safety standards, aging infrastructure, international collaboration, and a focus on public engagement represent some of the key factors driving the market.

Nuclear power reactor decommissioning is a complex and multifaceted process that marks the end of a nuclear power plant’s operational life. It entails the systematic and safe dismantling of the facility and its associated infrastructure, ensuring that radioactive materials are managed, contained, and ultimately disposed of in a manner that safeguards both human health and the environment. The decision to decommission a nuclear power reactor can arise from various factors, including the plant’s age, regulatory requirements, or shifts in energy policy. Regardless of the reason, the decommissioning process is a highly regulated and meticulously planned endeavor that demands meticulous project management, rigorous safety measures, and adherence to stringent environmental standards. Nuclear power reactor decommissioning involves several key stages, including decontamination, dismantling, waste management, and site restoration. Each of these phases is executed with utmost care to minimize radiation exposure to workers, prevent the release of radioactive materials, and restore the site to a condition suitable for other uses or long-term monitoring.

Japan Nuclear Power Reactor Decommissioning Market Trends:
The nuclear power reactor decommissioning market in Japan has emerged as a significant and evolving sector, driven by a complex interplay of factors, including regulatory imperatives, technological advancements, and a commitment to managing the legacy of nuclear power. The nuclear power reactor decommissioning market in Japan has emerged as a significant and evolving sector, driven by a complex interplay of factors, including regulatory imperatives, technological advancements, and a commitment to managing the legacy of nuclear power. Besides this, stringent safety and regulatory compliance standards are driving the regional market. Moreover, Japan’s nuclear reactors are aging and reaching the end of their operational lives. This aging infrastructure presents both challenges and opportunities for decommissioning service providers, as they work to safely dismantle and decontaminate these facilities. Public engagement and transparency have become central to Japan’s nuclear decommissioning efforts. This, in turn, is projected to bolster the regional market in the coming years.

Japan Nuclear Power Reactor Decommissioning Market Segmentation:
IMARC Group provides an analysis of the key trends in each segment of the market, along with forecasts at the country level for 2026-2034. Our report has categorized the market based on reactor type, application, and capacity.

Reactor Type Insights:
• Pressurized Water Reactor
• Pressurized Heavy Water Reactor
• Boiling Water Reactor
• High-temperature Gas-cooled Reactor
• Liquid Metal Fast Breeder Reactor
• Others

The report has provided a detailed breakup and analysis of the market based on the reactor type. This includes pressurized water reactor, pressurized heavy water reactor, boiling water reactor, high-temperature gas-cooled reactor, liquid metal fast breeder reactor, and others.

Application Insights:
• Commercial Power Reactor
• Prototype Power Reactor
• Research Reactor

A detailed breakup and analysis of the market based on the application have also been provided in the report. This includes commercial power reactor, prototype power reactor, and research reactor.

Capacity Insights:
• Below 100 MW
• 100-1000 MW
• Above 1000 MW

The report has provided a detailed breakup and analysis of the market based on the capacity. This includes below 100 mw, 100-1000 mw, and above 1000 mw.

The report has also provided a comprehensive analysis of all the major regional markets, which include Kanto Region, Kansai/Kinki Region, Central/ Chubu Region, Kyushu-Okinawa Region, Tohoku Region, Chugoku Region, Hokkaido Region, and Shikoku Region.

Competitive Landscape:
The market research report has also provided a comprehensive analysis of the competitive landscape in the market. Competitive analysis such as market structure, key player positioning, top winning strategies, competitive dashboard, and company evaluation quadrant has been covered in the report. Also, detailed profiles of all major companies have been provided.

レポート目次

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1 Preface
2 Scope and Methodology
2.1 Objectives of the Study
2.2 Stakeholders
2.3 Data Sources
2.3.1 Primary Sources
2.3.2 Secondary Sources
2.4 Market Estimation
2.4.1 Bottom-Up Approach
2.4.2 Top-Down Approach
2.5 Forecasting Methodology
3 Executive Summary
4 Japan Nuclear Power Reactor Decommissioning Market – Introduction
4.1 Overview
4.2 Market Dynamics
4.3 Industry Trends
4.4 Competitive Intelligence
5 Japan Nuclear Power Reactor Decommissioning Market Landscape
5.1 Historical and Current Market Trends (2020-2025)
5.2 Market Forecast (2026-2034)
6 Japan Nuclear Power Reactor Decommissioning Market – Breakup by Reactor Type
6.1 Pressurized Water Reactor
6.1.1 Overview
6.1.2 Historical and Current Market Trends (2020-2025)
6.1.3 Market Forecast (2026-2034)
6.2 Pressurized Heavy Water Reactor
6.2.1 Overview
6.2.2 Historical and Current Market Trends (2020-2025)
6.2.3 Market Forecast (2026-2034)
6.3 Boiling Water Reactor
6.3.1 Overview
6.3.2 Historical and Current Market Trends (2020-2025)
6.3.3 Market Forecast (2026-2034)
6.4 High-temperature Gas-cooled Reactor
6.4.1 Overview
6.4.2 Historical and Current Market Trends (2020-2025)
6.4.3 Market Forecast (2026-2034)
6.5 Liquid Metal Fast Breeder Reactor
6.5.1 Overview
6.5.2 Historical and Current Market Trends (2020-2025)
6.5.3 Market Forecast (2026-2034)
6.6 Others
6.6.1 Historical and Current Market Trends (2020-2025)
6.6.2 Market Forecast (2026-2034)
7 Japan Nuclear Power Reactor Decommissioning Market – Breakup by Application
7.1 Commercial Power Reactor
7.1.1 Overview
7.1.2 Historical and Current Market Trends (2020-2025)
7.1.3 Market Forecast (2026-2034)
7.2 Prototype Power Reactor
7.2.1 Overview
7.2.2 Historical and Current Market Trends (2020-2025)
7.2.3 Market Forecast (2026-2034)
7.3 Research Reactor
7.3.1 Overview
7.3.2 Historical and Current Market Trends (2020-2025)
7.3.3 Market Forecast (2026-2034)
8 Japan Nuclear Power Reactor Decommissioning Market – Breakup by Capacity
8.1 Below 100 MW
8.1.1 Overview
8.1.2 Historical and Current Market Trends (2020-2025)
8.1.3 Market Forecast (2026-2034)
8.2 100-1000 MW
8.2.1 Overview
8.2.2 Historical and Current Market Trends (2020-2025)
8.2.3 Market Forecast (2026-2034)
8.3 Above 1000 MW
8.3.1 Overview
8.3.2 Historical and Current Market Trends (2020-2025)
8.3.3 Market Forecast (2026-2034)
9 Japan Nuclear Power Reactor Decommissioning Market – Breakup by Region
9.1 Kanto Region
9.1.1 Overview
9.1.2 Historical and Current Market Trends (2020-2025)
9.1.3 Market Breakup by Reactor Type
9.1.4 Market Breakup by Application
9.1.5 Market Breakup by Capacity
9.1.6 Key Players
9.1.7 Market Forecast (2026-2034)
9.2 Kansai/Kinki Region
9.2.1 Overview
9.2.2 Historical and Current Market Trends (2020-2025)
9.2.3 Market Breakup by Reactor Type
9.2.4 Market Breakup by Application
9.2.5 Market Breakup by Capacity
9.2.6 Key Players
9.2.7 Market Forecast (2026-2034)
9.3 Central/ Chubu Region
9.3.1 Overview
9.3.2 Historical and Current Market Trends (2020-2025)
9.3.3 Market Breakup by Reactor Type
9.3.4 Market Breakup by Application
9.3.5 Market Breakup by Capacity
9.3.6 Key Players
9.3.7 Market Forecast (2026-2034)
9.4 Kyushu-Okinawa Region
9.4.1 Overview
9.4.2 Historical and Current Market Trends (2020-2025)
9.4.3 Market Breakup by Reactor Type
9.4.4 Market Breakup by Application
9.4.5 Market Breakup by Capacity
9.4.6 Key Players
9.4.7 Market Forecast (2026-2034)
9.5 Tohoku Region
9.5.1 Overview
9.5.2 Historical and Current Market Trends (2020-2025)
9.5.3 Market Breakup by Reactor Type
9.5.4 Market Breakup by Application
9.5.5 Market Breakup by Capacity
9.5.6 Key Players
9.5.7 Market Forecast (2026-2034)
9.6 Chugoku Region
9.6.1 Overview
9.6.2 Historical and Current Market Trends (2020-2025)
9.6.3 Market Breakup by Reactor Type
9.6.4 Market Breakup by Application
9.6.5 Market Breakup by Capacity
9.6.6 Key Players
9.6.7 Market Forecast (2026-2034)
9.7 Hokkaido Region
9.7.1 Overview
9.7.2 Historical and Current Market Trends (2020-2025)
9.7.3 Market Breakup by Reactor Type
9.7.4 Market Breakup by Application
9.7.5 Market Breakup by Capacity
9.7.6 Key Players
9.7.7 Market Forecast (2026-2034)
9.8 Shikoku Region
9.8.1 Overview
9.8.2 Historical and Current Market Trends (2020-2025)
9.8.3 Market Breakup by Reactor Type
9.8.4 Market Breakup by Application
9.8.5 Market Breakup by Capacity
9.8.6 Key Players
9.8.7 Market Forecast (2026-2034)
10 Japan Nuclear Power Reactor Decommissioning Market – Competitive Landscape
10.1 Overview
10.2 Market Structure
10.3 Market Player Positioning
10.4 Top Winning Strategies
10.5 Competitive Dashboard
10.6 Company Evaluation Quadrant
11 Profiles of Key Players
11.1 Company A
11.1.1 Business Overview
11.1.2 Product Portfolio
11.1.3 Business Strategies
11.1.4 SWOT Analysis
11.1.5 Major News and Events
11.2 Company B
11.2.1 Business Overview
11.2.2 Product Portfolio
11.2.3 Business Strategies
11.2.4 SWOT Analysis
11.2.5 Major News and Events
11.3 Company C
11.3.1 Business Overview
11.3.2 Product Portfolio
11.3.3 Business Strategies
11.3.4 SWOT Analysis
11.3.5 Major News and Events
11.4 Company D
11.4.1 Business Overview
11.4.2 Product Portfolio
11.4.3 Business Strategies
11.4.4 SWOT Analysis
11.4.5 Major News and Events
11.5 Company E
11.5.1 Business Overview
11.5.2 Product Portfolio
11.5.3 Business Strategies
11.5.4 SWOT Analysis
11.5.5 Major News and Events

Company names have not been provided here as this is a sample TOC. Complete list to be provided in the final report.

12 Japan Nuclear Power Reactor Decommissioning Market – Industry Analysis
12.1 Drivers, Restraints, and Opportunities
12.1.1 Overview
12.1.2 Drivers
12.1.3 Restraints
12.1.4 Opportunities
12.2 Porters Five Forces Analysis
12.2.1 Overview
12.2.2 Bargaining Power of Buyers
12.2.3 Bargaining Power of Suppliers
12.2.4 Degree of Competition
12.2.5 Threat of New Entrants
12.2.6 Threat of Substitutes
12.3 Value Chain Analysis
13 Appendix

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