日本のディーゼル発電機セット市場：市場規模・シェア分析・産業動向・促進要因・競合情勢・予測 (2025～2030年)

日本のディーゼル発電機セットの市場規模は、2024年の13億9,980万米ドルから、予測期間中はCAGR 5.7％で推移し、2030年には19億7,610万米ドルの規模に成長すると予測されています。

この市場の成長を牽引しているのは、都市人口の増加と、地震や台風などの自然災害による頻繁な停電です。都市部では、業務の継続性を確保するために信頼性の高いバックアップ電源システムが必要とされています。高度に発展した国であるにもかかわらず、長時間の停電が多発しているため、ディーゼル発電機セットは電力安全保障のための重要なソリューションとなっています。

産業部門における発電機セットの需要は大きく、その用途は製造業からロボット工学、オートメーションにまで及んでいます。ファクトリーオートメーションとロボット生産における日本の主導的役割は、ハイテク事業をサポートする信頼性の高い電源に対する一貫したニーズを生み出してきました。

主な洞察

750kVAを超える定格出力のディーゼル発電機セットが最大の収益シェアを占めており、これは高い電力需要を伴う産業業務での使用に牽引されています。日本ではロボットや自動化システムの生産に安定した電力が必要であり、これは大容量発電機によって支えられています。

病院、データセンター、小売店などでは、無停電電源への依存度が高まっているため、商業部門が市場の主要シェアを占めています。これらの分野では、停電による損失を軽減するためのバックアップソリューションが必要とされています。

都市化によって日本の電力インフラへの負担が強まっているため、都心部ではディーゼル発電機セットの需要が高まっています。都市がさらに拡大し、エネルギー需要が増加するにつれて、この動向は持続すると予想されます。

日本は自然災害の影響を受けやすいため、バックアップ電源ソリューションの重要性が高まっています。ディーゼル発電機は、非常時の操業維持に不可欠であり、必要不可欠なサービスのための電力供給を確保します。

技術の進歩は、出力密度とエネルギー効率を改善したディーゼル発電機セットの製造を可能にしています。こうした技術革新は、産業用および商業用ユーザーの多様なニーズに対応し、発電機をより効果的でコスト効率の高いものにしています。

市場競争は激しく、各社は日本独自の要件を満たすため、先進的で信頼性が高く、ニーズに合ったソリューションを提供することに注力しています。

当レポートでは、日本のディーゼル発電機セットの市場を調査し、市場の定義と概要、市場影響因子の分析、市場規模の推移・予測、各種区分・地域/主要国別の詳細分析、競合環境、主要企業のプロファイルなどをまとめています。

目次

第1章 調査範囲

第2章 調査手法

第3章 エグゼクティブサマリー

第4章 業界の展望

• 市場セグメントの定義
  • 出力定格別
    • 5～75kVA
    • 76～375kVA
    • 376～750kVA
    • 750kVA超
  • 用途別
    • 商業
    • 産業
    • 住宅
• 市場力学
  • 動向
    • ディーゼル発電機の技術的進歩
  • 促進要因
    • 住宅団地の増加
    • 電力網インフラの不足と停電頻度の増加
  • 市場予測の要因の影響分析
  • 抑制要因
    • 再生可能エネルギーの普及拡大
    • ディーゼル排気ガスの環境への悪影響と発がん性
  • 市場予測に対する制約の影響分析
• COVID-19の影響
• ポーターのファイブフォース分析

第5章 日本市場の規模・予測

• 概要
• 市場規模の推移・予測：電力定格別
• 市場収益の推移・予測：電力定格別
• 市場規模の推移・予測：用途別
  • 商用：ユーザー別
  • 商用：定格別
  • 産業用：ユーザー別
  • 産業用：定格別
• 市場収益の推移・予測：用途別
  • 商用：ユーザー別
  • 商用：定格別
  • 産業用：ユーザー別
  • 産業用：定格別

第6章 競合情勢

• 市場参入企業とその提供品目の一覧
• 主要企業の市場シェア分析
• 主要企業の最近の戦略展開

第7章 企業プロファイル

• Cummins Inc.
• Atlas Copco AB
• Kubota Corporation
• Nippon Sharyo Ltd.
• Airman Hokuetsu Industries Co. Ltd.
• Mitsubishi Heavy Industries Ltd.
• Caterpillar Inc.
• Denyo Co. Ltd.
• Kohler Co.
• Yanmar Holdings Co. Ltd.

第8章 付録

LIST OF TABLES

• TABLE 1 ANALYSIS PERIOD OF THE STUDY
• TABLE 2 DRIVERS FOR THE MARKET: IMPACT ANALYSIS
• TABLE 3 RESTRAINTS FOR THE MARKET: IMPACT ANALYSIS
• TABLE 4 JAPAN DIESEL GENSET MARKET VOLUME, BY POWER RATING, UNITS (2019-2024)
• TABLE 5 JAPAN DIESEL GENSET MARKET VOLUME, BY POWER RATING, UNITS (2025-2030)
• TABLE 6 JAPAN DIESEL GENSET MARKET VOLUME, BY POWER RATING, UNITS (2027-2030)
• TABLE 7 JAPAN DIESEL GENSET MARKET REVENUE, BY POWER RATING, $M (2019-2024)
• TABLE 8 JAPAN DIESEL GENSET MARKET REVENUE, BY POWER RATING, $M (2025-2030)
• TABLE 9 JAPAN DIESEL GENSET MARKET REVENUE, BY POWER RATING, $M (2027-2030)
• TABLE 10 JAPAN DIESEL GENSET MARKET VOLUME, BY APPLICATION, UNITS (2019-2024)
• TABLE 11 JAPAN DIESEL GENSET MARKET VOLUME, BY APPLICATION, UNITS (2025-2030)
• TABLE 12 JAPAN DIESEL GENSET MARKET VOLUME, BY APPLICATION, UNITS (2027-2030)
• TABLE 13 JAPAN COMMERCIAL DIESEL GENSET MARKET VOLUME, BY USER, UNITS (2019-2024)
• TABLE 14 JAPAN COMMERCIAL DIESEL GENSET MARKET VOLUME, BY USER, UNITS (2025-2030)
• TABLE 15 JAPAN COMMERCIAL DIESEL GENSET MARKET VOLUME, BY USER, UNITS (2027-2030)
• TABLE 16 JAPAN COMMERCIAL DIESEL GENSET MARKET VOLUME, BY POWER RATING, UNITS (2019-2024)
• TABLE 17 JAPAN COMMERCIAL DIESEL GENSET MARKET VOLUME, BY POWER RATING, UNITS (2025-2030)
• TABLE 18 JAPAN COMMERCIAL DIESEL GENSET MARKET VOLUME, BY POWER RATING, UNITS (2027-2030)
• TABLE 19 JAPAN INDUSTRIAL DIESEL GENSET MARKET VOLUME, BY USER, UNITS (2019-2024)
• TABLE 20 JAPAN INDUSTRIAL DIESEL GENSET MARKET VOLUME, BY USER, UNITS (2025-2030)
• TABLE 21 JAPAN INDUSTRIAL DIESEL GENSET MARKET VOLUME, BY USER, UNITS (2027-2030)
• TABLE 22 JAPAN INDUSTRIAL DIESEL GENSET MARKET VOLUME, BY POWER RATING, UNITS (2019-2024)
• TABLE 23 JAPAN INDUSTRIAL DIESEL GENSET MARKET VOLUME, BY POWER RATING, UNITS (2025-2030)
• TABLE 24 JAPAN INDUSTRIAL DIESEL GENSET MARKET VOLUME, BY POWER RATING, UNITS (2027-2030)
• TABLE 25 JAPAN DIESEL GENSET MARKET REVENUE, BY APPLICATION, $M (2019-2024)
• TABLE 26 JAPAN DIESEL GENSET MARKET REVENUE, BY APPLICATION, $M (2025-2030)
• TABLE 27 JAPAN DIESEL GENSET MARKET REVENUE, BY APPLICATION, $M (2027-2030)
• TABLE 28 JAPAN COMMERCIAL DIESEL GENSET MARKET REVENUE, BY USER, $M (2019-2024)
• TABLE 29 JAPAN COMMERCIAL DIESEL GENSET MARKET REVENUE, BY USER, $M (2025-2030)
• TABLE 30 JAPAN COMMERCIAL DIESEL GENSET MARKET REVENUE, BY USER, $M (2027-2030)
• TABLE 31 JAPAN COMMERCIAL DIESEL GENSET MARKET REVENUE, BY POWER RATING, $M (2019-2024)
• TABLE 32 JAPAN COMMERCIAL DIESEL GENSET MARKET REVENUE, BY POWER RATING, $M (2025-2030)
• TABLE 33 JAPAN COMMERCIAL DIESEL GENSET MARKET REVENUE, BY POWER RATING, $M (2027-2030)
• TABLE 34 JAPAN INDUSTRIAL DIESEL GENSET MARKET REVENUE, BY USER, $M (2019-2024)
• TABLE 35 JAPAN INDUSTRIAL DIESEL GENSET MARKET REVENUE, BY USER, $M (2025-2030)
• TABLE 36 JAPAN INDUSTRIAL DIESEL GENSET MARKET REVENUE, BY USER, $M (2027-2030)
• TABLE 37 JAPAN INDUSTRIAL DIESEL GENSET MARKET REVENUE, BY POWER RATING, $M (2019-2024)
• TABLE 38 JAPAN INDUSTRIAL DIESEL GENSET MARKET REVENUE, BY POWER RATING, $M (2025-2030)
• TABLE 39 JAPAN INDUSTRIAL DIESEL GENSET MARKET REVENUE, BY POWER RATING, $M (2027-2030)
• TABLE 40 DIESEL GENSETS OFFERED BY MAJOR MARKET PLAYERS
• TABLE 41 CUMMINS INC - AT A GLANCE
• TABLE 42 CUMMINS INC - KEY FINANCIAL SUMMARY
• TABLE 43 ATLAS COPCO AB - AT A GLANCE
• TABLE 44 ATLAS COPCO AB - KEY FINANCIAL SUMMARY
• TABLE 45 KUBOTA CORPORATION - AT A GLANCE
• TABLE 46 KUBOTA CORPORATION - KEY FINANCIAL SUMMARY
• TABLE 47 NIPPON SHARYO LTD. - AT A GLANCE
• TABLE 48 NIPPON SHARYO LTD. - KEY FINANCIAL SUMMARY
• TABLE 49 AIRMAN HOKUETSU INDUSTRIES CO. LTD. - AT A GLANCE
• TABLE 50 AIRMAN HOKUETSU INDUSTRIES CO. LTD. - KEY FINANCIAL SUMMARY
• TABLE 51 MITSUBISHI HEAVY INDUSTRIES LTD. - AT A GLANCE
• TABLE 52 MITSUBISHI HEAVY INDUSTRIES LTD. - KEY FINANCIAL SUMMARY
• TABLE 53 CATERPILLAR INC. - AT A GLANCE
• TABLE 54 CATERPILLAR INC. - KEY FINANCIAL SUMMARY
• TABLE 55 DENYO CO. LTD. - AT A GLANCE
• TABLE 56 DENYO CO. LTD. - KEY FINANCIAL SUMMARY
• TABLE 57 KOHLER CO. - AT A GLANCE
• TABLE 58 YANMAR HOLDINGS CO. LTD. - AT A GLANCE
• TABLE 59 YANMAR HOLDINGS CO. LTD. - KEY FINANCIAL SUMMARY

LIST OF FIGURES

• FIG 1 MARKET SIZE BREAKDOWN BY SEGMENT
• FIG 2 RESEARCH METHODOLOGY
• FIG 3 BREAKDOWN OF PRIMARY RESEARCH, BY INDUSTRY PARTICIPANT
• FIG 4 BREAKDOWN OF PRIMARY RESEARCH, BY DESIGNATION
• FIG 5 DATA TRIANGULATION APPROACH
• FIG 6 JAPAN DIESEL GENSET MARKET SUMMARY
• FIG 7 BARGAINING POWER OF BUYERS
• FIG 8 BARGAINING POWER OF SUPPLIERS
• FIG 9 INTENSITY OF RIVALRY
• FIG 10 THREAT OF NEW ENTRANTS
• FIG 11 THREAT OF SUBSTITUTES
• FIG 12 JAPAN DIESEL GENSET MARKET VOLUME, BY POWER RATING, UNITS (2019-2030)
• FIG 13 JAPAN DIESEL GENSET MARKET REVENUE, BY POWER RATING, $M (2019-2030)
• FIG 14 JAPAN DIESEL GENSET MARKET VOLUME, BY APPLICATION, UNITS (2019-2030)
• FIG 15 JAPAN COMMERCIAL DIESEL GENSET MARKET VOLUME, BY USER, UNITS (2019-2030)
• FIG 16 JAPAN COMMERCIAL DIESEL GENSET MARKET VOLUME, BY POWER RATING, UNITS (2019-2030)
• FIG 17 JAPAN INDUSTRIAL DIESEL GENSET MARKET VOLUME, BY USER, UNITS (2019-2030)
• FIG 18 JAPAN INDUSTRIAL DIESEL GENSET MARKET VOLUME, BY POWER RATING, UNITS (2019-2030)
• FIG 19 JAPAN DIESEL GENSET MARKET REVENUE, BY APPLICATION, $M (2019-2030)
• FIG 20 JAPAN COMMERCIAL DIESEL GENSET MARKET REVENUE, BY USER, $M (2019-2030)
• FIG 21 JAPAN COMMERCIAL DIESEL GENSET MARKET REVENUE, BY POWER RATING, $M (2019-2030)
• FIG 22 JAPAN INDUSTRIAL DIESEL GENSET MARKET REVENUE, BY USER, $M (2019-2030)
• FIG 23 JAPAN INDUSTRIAL DIESEL GENSET MARKET REVENUE, BY POWER RATING, $M (2019-2030)
• FIG 24 JAPAN DIESEL GENSET MARKET SHARE ANALYSIS OF KEY PLAYERS (2023)
• FIG 25 CUMMINS INC. - REVENUE SPLIT BY SEGMENT AND GEOGRAPHY (2023)
• FIG 26 ATLAS COPCO AB - REVENUE SPLIT BY SEGMENT AND GEOGRAPHY (2023)
• FIG 27 KUBOTA CORPORATION - REVENUE SPLIT BY SEGMENT AND GEOGRAPHY (2023)
• FIG 28 NIPPON SHARYO LTD. - REVENUE SPLIT BY SEGMENT AND GEOGRAPHY (2023)
• FIG 29 AIRMAN HOKUETSU INDUSTRIES CO. LTD. - REVENUE SPLIT BY SEGMENT AND GEOGRAPHY (2023)
• FIG 30 MITSUBISHI HEAVY INDUSTRIES LTD. - REVENUE SPLIT BY SEGMENT (2023)
• FIG 31 CATERPILLAR INC. - REVENUE SPLIT BY SEGMENT AND GEOGRAPHY (2023)
• FIG 32 DENYO CO. LTD. - REVENUE SPLIT BY SEGMENT AND GEOGRAPHY (2023)

The Japanese diesel generator set market is projected to grow from $1,399.8 million in 2024 to $1,976.1 million by 2030, reflecting a compound annual growth rate (CAGR) of 5.7% during the forecast period.

The growth of this market is driven by the increasing urban population and frequent power outages caused by natural disasters such as earthquakes and typhoons. Urban areas require reliable backup power systems to ensure operational continuity. Despite being a highly developed country, the prevalence of prolonged outages has made diesel generator sets a critical solution for power security.

The demand for generator sets in the industrial sector is significant, with applications ranging from manufacturing to robotics and automation. Japan's leading role in factory automation and robot production has created a consistent need for reliable power sources to support high-tech operations.

Key Insights

Diesel generator sets with a power rating above 750 kVA hold the largest revenue share, driven by their use in industrial operations with high power demands. The production of robots and automated systems in Japan requires stable electricity, which is supported by high-capacity gensets.

The commercial sector accounts for a major share of the market due to the increasing reliance on uninterrupted power in hospitals, data centers, and retail outlets. These sectors require backup solutions to mitigate losses caused by power outages.

Urbanization is intensifying the strain on Japan's power infrastructure, leading to a higher demand for diesel generator sets in urban centers. This trend is expected to persist, as cities expand further and energy demands rise.

Japan's susceptibility to natural disasters has reinforced the importance of backup power solutions. Diesel generators are critical in maintaining operations during emergencies, ensuring power availability for essential services.

Technological advancements are enabling the production of diesel generator sets with improved power density and energy efficiency. These innovations cater to the diverse needs of industrial and commercial users, making the gensets more effective and cost-efficient.

The market is highly competitive, with companies focusing on delivering advanced, reliable, and tailored solutions to meet Japan's unique requirements.

Table of Contents

Chapter 1. Research Background

• 1.1 Research Objectives
• 1.2 Market Definition
• 1.3 Analysis Period
• 1.4 Market Size Breakdown by Segment
• 1.5 Market Data Reporting Unit
• 1.6 Key Stakeholders

Chapter 2. Research Methodology

• 2.1 Secondary Research
  • 2.1.1 Paid
  • 2.1.2 Unpaid
  • 2.1.3 P&S Intelligence Database
• 2.2 Primary Research
  • 2.2.1 Breakdown of Primary Research, by Industry Participant
  • 2.2.2 Breakdown of Primary Research, by Designation
• 2.3 Market Size Estimation
• 2.4 Data Triangulation
• 2.5 Currency Conversion Rates
• 2.6 Notes and Caveats

Chapter 3. Executive Summary

Chapter 4. Industry Outlook

• 4.1 Definition of Market Segments
  • 4.1.1 By Power Rating
    • 4.1.1.1 5-75 kVA
    • 4.1.1.2 76-375 kVA
    • 4.1.1.3 376-750 kVA
    • 4.1.1.4 Above 750 kVA
  • 4.1.2 By Application
    • 4.1.2.1 Commercial
      • 4.1.2.1.1 Retail establishments
      • 4.1.2.1.2 Offices
      • 4.1.2.1.3 Telecom towers
      • 4.1.2.1.4 Hospitals
      • 4.1.2.1.5 Hotels
      • 4.1.2.1.6 Others
    • 4.1.2.2 Industrial
      • 4.1.2.2.1 Manufacturing
      • 4.1.2.2.2 Energy & power
      • 4.1.2.2.3 Others
    • 4.1.2.3 Residential
• 4.2 Market Dynamics
  • 4.2.1 Trends
    • 4.2.1.1 Technological advancements in diesel gensets
  • 4.2.2 Drivers
    • 4.2.2.1 Rising number of residential societies
    • 4.2.2.2 Poor grid infrastructure and rising frequency of power outages
  • 4.2.3 Impact Analysis of Drivers on Market Forecast
  • 4.2.4 Restraints
    • 4.2.4.1 Increasing penetration of renewable sources
    • 4.2.4.2 Detrimental environmental impact and carcinogenic nature of diesel exhaust
  • 4.2.5 Impact Analysis of Restraints on Market Forecast
• 4.3 Impact of COVID-19
• 4.4 Porter's Five Forces Analysis
  • 4.4.1 Bargaining Power of Buyers
  • 4.4.2 Bargaining Power of Suppliers
  • 4.4.3 Intensity of Rivalry
  • 4.4.4 Threat of New Entrants
  • 4.4.5 Threat of Substitutes

Chapter 5. Japan Market Size and Forecast

• 5.1 Overview
• 5.2 Market Volume, by Power Rating (2019-2030)
• 5.3 Market Revenue, by Power Rating (2019-2030)
• 5.4 Market Volume, by Application (2019-2030)
  • 5.4.1 Commercial Market Volume, by User
  • 5.4.2 Commercial Market Volume, by Power Rating
  • 5.4.3 Industrial Market Volume, by User
  • 5.4.4 Industrial Market Volume, by Power Rating
• 5.5 Market Revenue, by Application (2019-2030)
  • 5.5.1 Commercial Market Revenue, by User
  • 5.5.2 Commercial Market Revenue, by Power Rating
  • 5.5.3 Industrial Market Revenue, by User
  • 5.5.4 Industrial Market Revenue, by Power Rating

Chapter 6. Competitive Landscape

• 6.1 List of Market Players and Their Offerings
• 6.2 Market Share Analysis of Key Players
• 6.3 Recent Strategic Developments of Key Players

Chapter 7. Company Profiles

• 7.1 Cummins Inc.
  • 7.1.1 Business Overview
  • 7.1.2 Product and Service Offerings
  • 7.1.3 Key Financial Summary
• 7.2 Atlas Copco AB
  • 7.2.1 Business Overview
  • 7.2.2 Product and Service Offerings
  • 7.2.3 Key Financial Summary
• 7.3 Kubota Corporation
  • 7.3.1 Business Overview
  • 7.3.2 Product and Service Offerings
  • 7.3.3 Key Financial Summary
• 7.4 Nippon Sharyo Ltd.
  • 7.4.1 Business Overview
  • 7.4.2 Product and Service Offerings
  • 7.4.3 Key Financial Summary
• 7.5 Airman Hokuetsu Industries Co. Ltd.
  • 7.5.1 Business Overview
  • 7.5.2 Product and Service Offerings
  • 7.5.3 Key Financial Summary
• 7.6 Mitsubishi Heavy Industries Ltd.
  • 7.6.1 Business Overview
  • 7.6.2 Product and Service Offering
  • 7.6.3 Key Financial Summary
• 7.7 Caterpillar Inc.
  • 7.7.1 Business Overview
  • 7.7.2 Product and Service Offerings
  • 7.7.3 Key Financial Summary
• 7.8 Denyo Co. Ltd.
  • 7.8.1 Business Overview
  • 7.8.2 Product and Service Offerings
  • 7.8.3 Key Financial Summary
• 7.9 Kohler Co.
  • 7.9.1 Business Overview
  • 7.9.2 Product and Service Offerings
• 7.10 Yanmar Holdings Co. Ltd.
  • 7.10.1 Business Overview
  • 7.10.2 Product and Service Offerings
  • 7.10.3 Key Financial Summary

Chapter 8. Appendix

• 8.1 Abbreviations
• 8.2 Sources and References
• 8.3 Related Reports