日本の電力EPC市場規模、シェア、動向、予測：タイプ別、地域別、2025年～2033年

日本の電力EPC市場規模は2024年に404億3,350万米ドルに達しました。今後、IMARC Groupでは、2033年には565億6,894万米ドルに達し、2025年から2033年にかけて3.80%の成長率（CAGR）を示すと予測しています。日本の電力EPC市場シェアは、カーボンニュートラルの達成を目指した政府のイニシアティブにより拡大しています。再生可能エネルギー、特に洋上風力発電プロジェクトに対する投資の増加とエネルギー効率化の義務化が、専門的なEPCサービスの需要を促進し、クリーンエネルギーインフラストラクチャと持続可能性プロジェクトの成長を促進しています。

本レポートで扱う主な質問

• 日本の電力EPC市場はこれまでどのように推移してきたか？
• 日本の電力EPC市場のタイプ別区分は？
• 日本の電力EPC市場の地域別区分は？
• 日本の電力EPC市場のバリューチェーンにおける様々なステージとは？
• 日本の電力EPC市場の主な促進要因と課題は？
• 日本の電力EPC市場の構造と主要企業は？
• 日本の電力EPC市場の競合状況は？

目次

第1章 序文

第2章 調査範囲と調査手法

• 調査の目的
• ステークホルダー
• データソース
• 市場推定
• 調査手法

第3章 エグゼクティブサマリー

第4章 日本の電力EPC市場-イントロダクション

• 概要
• 市場力学
• 業界動向
• 競合情報

第5章 日本の電力EPC市場情勢

• 過去および現在の市場動向（2019～2024年）
• 市場予測（2025～2033年）

第6章 日本の電力EPC市場- タイプ別の内訳

• サーマル
• ガス
• 再生可能
• 核
• その他

第7章 日本の電力EPC市場-競合情勢

• 概要
• 市場構造
• 市場企業のポジショニング
• 主要成功戦略
• 競合ダッシュボード
• 企業評価象限

第8章 主要企業のプロファイル

第9章 日本の電力EPC市場- 業界分析

• 促進要因・抑制要因・機会
• ポーターのファイブフォース分析
• バリューチェーン分析

第10章 付録

The Japan power EPC market size reached USD 40,433.50 Million in 2024. Looking forward, IMARC Group expects the market to reach USD 56,568.94 Million by 2033, exhibiting a growth rate (CAGR) of 3.80% during 2025-2033. The Japan power EPC market share is growing owing to government-backed initiatives aimed at achieving carbon neutrality. Increased investments in renewable energy, especially offshore wind projects, alongside energy efficiency mandates, are driving the demand for specialized EPC services, fostering growth in clean energy infrastructure and sustainability projects.

Japan Power EPC Market Trends:

Government Initiatives and Energy Transition Goals

Japan intends to reach carbon neutrality by 2050, committing to considerable investments in renewable energy options like solar, wind, and geothermal energy. The governing authority is also concentrating on improving energy security via local energy generation. Consequently, public-private partnerships and incentives are aiding engineering, procurement, and construction (EPC) firms in obtaining renewable energy projects, broadening market possibilities. The execution of energy transition policies and frameworks, such as subsidies and tax benefits, is hastening the change from fossil fuel-dependent energy systems to cleaner options, boosting the need for EPC services in power generation and grid infrastructure. In 2025, JERA headed a consortium to obtain the rights for a 615-MW offshore wind initiative in Aomori Prefecture, Japan. Scheduled to commence in June 2030, the project will become one of Japan's largest offshore wind energy initiatives. The consortium intends to aid Japan's carbon neutrality objectives by collaborating closely with local communities and the fishing sector.

Increasing Investment in Offshore Wind Energy

Japan is making significant strides in offshore wind energy development, aiming to become one of the international leaders in this sector. The country has vast potential for offshore wind power, particularly in regions with strong, consistent winds. Government-backed initiatives are fostering investment in offshore wind farms. For example, in 2025, Mitsui OSK Lines (MOL) and Fukada Salvage & Marine Works signed a memorandum of understanding to develop specialized vessels for transporting and installing floating offshore wind turbines in Japan. This initiative supports Japan's push for carbon neutrality by 2050 and focuses on expanding floating wind energy in deep-sea areas. The partnership aims to address the need for specialized vessels and mooring systems for these projects. This growing focus on offshore wind energy is driving the demand for power EPC services, as the complex nature of offshore projects requires specialized construction, installation, and maintenance expertise. The expansion of port facilities, turbine installation infrastructure, and subsea cabling projects are increasing, providing new opportunities for EPC contractors to participate in this rapidly growing segment of Japan's power generation landscape.

Growing Focus on Energy Efficiency and Sustainability

As part of Japan's energy transition goals, the country is setting stringent energy efficiency standards for new power plants and grid infrastructure. This includes optimizing existing plants to reduce emissions, improve efficiency, and extend the life cycle of assets. EPC contractors are being tasked with upgrading or retrofitting aging facilities to meet these sustainability standards, particularly in coal and gas-fired power plants. Additionally, Japan's focus on reducing its overall carbon footprint is leading to the incorporation of green technologies, like carbon capture and storage (CCS) systems, into new and existing power projects. For instance, in 2024, Japan's JOGMEC signed a consignment contract with ENEOS, JX Nippon Oil & Gas, J-POWER, and West Japan Carbon Dioxide Storage Survey for engineering design work related to the Offshore Western Kyushu CCS project. This initiative aims to capture and store 1.7 million tons of CO2 annually by FY2030. The project involves capturing CO2 from refineries and power plants, transporting it via ship and pipeline to offshore storage sites. These efforts require advanced EPC capabilities to ensure compliance with environmental regulations and to improve the overall sustainability of Japan's energy system.

Japan Power EPC Market Segmentation:

Type Insights:

• Thermal
• Gas
• Renewable
• Nuclear
• Others

Competitive Landscape:

The market research report has also provided a comprehensive analysis of the competitive landscape. 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.

Key Questions Answered in This Report:

• How has the Japan power EPC market performed so far and how will it perform in the coming years?
• What is the breakup of the Japan power EPC market on the basis of type?
• What is the breakup of the Japan power EPC market on the basis of region?
• What are the various stages in the value chain of the Japan power EPC market?
• What are the key driving factors and challenges in the Japan power EPC market?
• What is the structure of the Japan power EPC market and who are the key players?
• What is the degree of competition in the Japan power EPC market?

Table of Contents

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 Power EPC Market - Introduction

• 4.1 Overview
• 4.2 Market Dynamics
• 4.3 Industry Trends
• 4.4 Competitive Intelligence

5 Japan Power EPC Market Landscape

• 5.1 Historical and Current Market Trends (2019-2024)
• 5.2 Market Forecast (2025-2033)

6 Japan Power EPC Market - Breakup by Type

• 6.1 Thermal
  • 6.1.1 Overview
  • 6.1.2 Historical and Current Market Trends (2019-2024)
  • 6.1.3 Market Forecast (2025-2033)
• 6.2 Gas
  • 6.2.1 Overview
  • 6.2.2 Historical and Current Market Trends (2019-2024)
  • 6.2.3 Market Forecast (2025-2033)
• 6.3 Renewable
  • 6.3.1 Overview
  • 6.3.2 Historical and Current Market Trends (2019-2024)
  • 6.3.3 Market Forecast (2025-2033)
• 6.4 Nuclear
  • 6.4.1 Overview
  • 6.4.2 Historical and Current Market Trends (2019-2024)
  • 6.4.3 Market Forecast (2025-2033)
• 6.5 Others
  • 6.5.1 Historical and Current Market Trends (2019-2024)
  • 6.5.2 Market Forecast (2025-2033)

7 Japan Power EPC Market - Competitive Landscape

• 7.1 Overview
• 7.2 Market Structure
• 7.3 Market Player Positioning
• 7.4 Top Winning Strategies
• 7.5 Competitive Dashboard
• 7.6 Company Evaluation Quadrant

8 Profiles of Key Players

• 8.1 Company A
  • 8.1.1 Business Overview
  • 8.1.2 Services Offered
  • 8.1.3 Business Strategies
  • 8.1.4 SWOT Analysis
  • 8.1.5 Major News and Events
• 8.2 Company B
  • 8.2.1 Business Overview
  • 8.2.2 Services Offered
  • 8.2.3 Business Strategies
  • 8.2.4 SWOT Analysis
  • 8.2.5 Major News and Events
• 8.3 Company C
  • 8.3.1 Business Overview
  • 8.3.2 Services Offered
  • 8.3.3 Business Strategies
  • 8.3.4 SWOT Analysis
  • 8.3.5 Major News and Events
• 8.4 Company D
  • 8.4.1 Business Overview
  • 8.4.2 Services Offered
  • 8.4.3 Business Strategies
  • 8.4.4 SWOT Analysis
  • 8.4.5 Major News and Events
• 8.5 Company E
  • 8.5.1 Business Overview
  • 8.5.2 Services Offered
  • 8.5.3 Business Strategies
  • 8.5.4 SWOT Analysis
  • 8.5.5 Major News and Events

9 Japan Power EPC Market - Industry Analysis

• 9.1 Drivers, Restraints, and Opportunities
  • 9.1.1 Overview
  • 9.1.2 Drivers
  • 9.1.3 Restraints
  • 9.1.4 Opportunities
• 9.2 Porters Five Forces Analysis
  • 9.2.1 Overview
  • 9.2.2 Bargaining Power of Buyers
  • 9.2.3 Bargaining Power of Suppliers
  • 9.2.4 Degree of Competition
  • 9.2.5 Threat of New Entrants
  • 9.2.6 Threat of Substitutes
• 9.3 Value Chain Analysis

10 Appendix