日本離網太陽能發電市場規模、佔有率、趨勢和預測：按最終用戶和地區分類，2026-2034年

Japan Off-Grid Solar Energy Market Size, Share, Trends and Forecast by End User and Region, 2026-2034

出版日期: 2026年02月01日 | 出版商:

IMARC | 英文 149 Pages | 商品交期: 5-7個工作天內

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簡介目錄

2025年，日本離網太陽能發電市場規模達204.5兆瓦。展望未來，IMARC Group預測，到2034年，該市場規模將達到286.3兆瓦，2026年至2034年的複合年成長率（CAGR）為3.81%。推動這一市場成長的關鍵因素包括：政府補貼和稅額扣抵等激勵措施顯著降低了安裝成本，加速了太陽能發電的普及；太陽能發電技術和能源儲存系統的技術進步提高了效率和可靠性；以及對能源獨立性和韌性的日益成長的需求，尤其是在偏遠和易受災害影響的地區，進一步提升了日本離網太陽能發電的市場佔有率。

日本離網太陽能市場的發展趨勢：

政府激勵措施和監管支持

日本政府透過有針對性的激勵措施和有利的法規結構，在離網太陽能產業的發展中發揮至關重要的作用。國家和地區層面的計畫為可再生能源設備的安裝提供財政支持，包括補貼、投資稅額扣抵和低利率貸款。這些措施顯著降低了個人和企業的成本門檻，促進了太陽能系統的廣泛應用。此外，日本長期致力於減少碳排放，這與推廣分散式能源解決方案密切相關。監管改革簡化了核准程序和併網標準，進一步提高了太陽能計劃的可行性。在日本，其目標是實現能源結構多元化並降低對進口的依賴，這些政策機制使太陽能發電在經濟上可行且具有戰略意義，持續推動日本離網太陽能市場的成長。例如，東京將於2025年4月起強制所有新建獨棟住宅安裝屋頂太陽能板，以實現其2050年淨零排放目標。該規定適用於總占地面積小於2000平方公尺的住宅。為減輕安裝成本負擔，政府將提供補貼。目前，東京有225萬棟建築適合安裝太陽能板，但實際安裝率僅4.2%。

對能源韌性和分散化的需求日益成長

日本頻繁發生的自然災害，例如地震、颱風和海嘯，凸顯了建立具有韌性和分散式能源系統的迫切需求。離網太陽能解決方案是集中式電網的有效替代方案，能夠提供穩定且獨立的電力供應，尤其是在易受災害侵襲的偏遠地區。這些系統減少了對國家基礎設施的依賴，即使在危機情況下也能快速部署，並確保家庭、醫療機構和緊急應變部隊的持續供電。此外，公共和公共相關人員對能源自給自足意識提升，正在推動離網太陽能系統的普及。隨著日本國家韌性策略強調可再生能源的分散化，這一趨勢強化了獨立太陽能基礎設施在國家防災和永續性措施中的關鍵作用，並顯著促進了日本離網太陽能市場的成長。例如，2024年5月，Google透過與Sizen Energy和Clean Energy Connect簽署的兩份購電協議（PPA），在日本簽署了首批可再生能源合約。這些計劃將新增 60 兆瓦的太陽能發電容量，支持谷歌到 2030 年實現 24/7 全天候無碳能源的全球目標，並展示谷歌在日本對永續基礎設施 6.9 億美元的投資。

本報告解答的主要問題

日本離網太陽能發電市場目前發展狀況如何？未來幾年預計發展如何？
日本離網太陽能發電市場依最終用戶分類的情況如何？
日本離網太陽能發電市場按地區分類的情況如何？
日本離網太陽能發電市場價值鏈的不同階段有哪些？
日本離網太陽能發電市場的主要促進因素和挑戰是什麼？
日本離網太陽能發電市場的結構是怎麼樣的？主要參與者有哪些？
日本離網太陽能發電市場競爭程度如何？

The Japan off-grid solar energy market size reached 204.5 MW in 2025 . Looking forward, IMARC Group expects the market to reach 286.3 MW by 2034 , exhibiting a growth rate (CAGR) of 3.81% during 2026-2034 . The market is driven by various major factors. Government incentives in the form of subsidies and tax credits lower the cost of installations significantly, which makes solar power more affordable. Technological breakthroughs in photovoltaic technology and energy storage systems have led to increased efficiency and reliability. The growing energy independence and resiliency requirements, particularly for remote and disaster-risk areas, further propel Japan off-grid solar energy market share.

JAPAN OFF-GRID SOLAR ENERGY MARKET TRENDS:

Government Incentives and Regulatory Support

The Japanese government plays a vital role in advancing the off-grid solar sector through targeted incentives and favorable regulatory frameworks. National and regional programs offer financial support, including subsidies, investment tax credits, and low-interest financing for renewable energy installations. These measures significantly lower the cost barriers for both individuals and businesses, encouraging broader adoption of solar energy systems. Additionally, Japan's long-term commitment to reducing carbon emissions aligns closely with promoting decentralized energy solutions. Regulatory reforms also streamline permitting processes and grid connection standards, further enhancing the feasibility of solar projects. As Japan aims to diversify its energy mix and reduce dependency on imports, such policy mechanisms continue to bolster Japan off-grid solar energy market growth by making solar power economically viable and strategically essential. For instance, starting April 2025, Tokyo will require all new detached homes to install rooftop solar panels as part of its goal to achieve net-zero emissions by 2050. This regulation applies to homes with a total floor area under 2,000 square meters. To alleviate installation costs, the government will offer a subsidy. Tokyo currently has 2.25 million buildings suitable for solar panels, but only 4.2% are equipped with them.

Rising Demand for Energy Resilience and Decentralization

Japan's frequent exposure to natural disasters, such as earthquakes, typhoons, and tsunamis, has underscored the urgent need for resilient and decentralized energy systems. Off-grid solar solutions offer an effective alternative to centralized grids, providing consistent and autonomous power, especially in disaster-prone and remote regions. These systems reduce dependence on national infrastructure and can be rapidly deployed in crisis scenarios, ensuring power continuity for households, healthcare facilities, and emergency response units. Moreover, increasing awareness among both private and public stakeholders about energy self-sufficiency has led to a surge in adoption. With national resilience strategies emphasizing renewable decentralization, this trend significantly contributes to Japan off-grid solar energy market growth by reinforcing the critical role of autonomous solar infrastructure in national preparedness and sustainability initiatives. For instance, in May 2024, Google signed its first renewable energy deals in Japan through two solar power purchase agreements (PPAs) with Shizen Energy and Clean Energy Connect. These projects will add 60 MW of solar capacity, supporting Google's global 24/7 carbon-free energy goal by 2030 and demonstrating its $690 million commitment to sustainable infrastructure in Japan.

JAPAN OFF-GRID SOLAR ENERGY MARKET SEGMENTATION:

End User Insights:

Residential
Commercial
Industrial

Regional Insights:

Kanto Region
Kansai/Kinki Region
Central/ Chubu Region
Kyushu-Okinawa Region
Tohoku Region
Chugoku Region
Hokkaido Region
Shikoku Region

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

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 off-grid solar energy market performed so far and how will it perform in the coming years?
What is the breakup of the Japan off-grid solar energy market on the basis of end user?
What is the breakup of the Japan off-grid solar energy market on the basis of region?
What are the various stages in the value chain of the Japan off-grid solar energy market?
What are the key driving factors and challenges in the Japan off-grid solar energy market?
What is the structure of the Japan off-grid solar energy market and who are the key players?
What is the degree of competition in the Japan off-grid solar energy market?

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 Off-Grid Solar Energy Market - Introduction

4.1 Overview
4.2 Market Dynamics
4.3 Industry Trends
4.4 Competitive Intelligence

5 Japan Off-Grid Solar Energy Market Landscape

5.1 Historical and Current Market Trends (2020-2025)
5.2 Market Forecast (2026-2034)

6 Japan Off-Grid Solar Energy Market - Breakup by End User

6.1 Residential
- 6.1.1 Overview
- 6.1.2 Historical and Current Market Trends (2020-2025)
- 6.1.3 Market Forecast (2026-2034)
6.2 Commercial
- 6.2.1 Overview
- 6.2.2 Historical and Current Market Trends (2020-2025)
- 6.2.3 Market Forecast (2026-2034)
6.3 Industrial
- 6.3.1 Overview
- 6.3.2 Historical and Current Market Trends (2020-2025)
- 6.3.3 Market Forecast (2026-2034)

7 Japan Off-Grid Solar Energy Market - Breakup by Region

7.1 Kanto Region
- 7.1.1 Overview
- 7.1.2 Historical and Current Market Trends (2020-2025)
- 7.1.3 Market Breakup by End User
- 7.1.4 Key Players
- 7.1.5 Market Forecast (2026-2034)
7.2 Kansai/Kinki Region
- 7.2.1 Overview
- 7.2.2 Historical and Current Market Trends (2020-2025)
- 7.2.3 Market Breakup by End User
- 7.2.4 Key Players
- 7.2.5 Market Forecast (2026-2034)
7.3 Central/ Chubu Region
- 7.3.1 Overview
- 7.3.2 Historical and Current Market Trends (2020-2025)
- 7.3.3 Market Breakup by End User
- 7.3.4 Key Players
- 7.3.5 Market Forecast (2026-2034)
7.4 Kyushu-Okinawa Region
- 7.4.1 Overview
- 7.4.2 Historical and Current Market Trends (2020-2025)
- 7.4.3 Market Breakup by End User
- 7.4.4 Key Players
- 7.4.5 Market Forecast (2026-2034)
7.5 Tohoku Region
- 7.5.1 Overview
- 7.5.2 Historical and Current Market Trends (2020-2025)
- 7.5.3 Market Breakup by End User
- 7.5.4 Key Players
- 7.5.5 Market Forecast (2026-2034)
7.6 Chugoku Region
- 7.6.1 Overview
- 7.6.2 Historical and Current Market Trends (2020-2025)
- 7.6.3 Market Breakup by End User
- 7.6.4 Key Players
- 7.6.5 Market Forecast (2026-2034)
7.7 Hokkaido Region
- 7.7.1 Overview
- 7.7.2 Historical and Current Market Trends (2020-2025)
- 7.7.3 Market Breakup by End User
- 7.7.4 Key Players
- 7.7.5 Market Forecast (2026-2034)
7.8 Shikoku Region
- 7.8.1 Overview
- 7.8.2 Historical and Current Market Trends (2020-2025)
- 7.8.3 Market Breakup by End User
- 7.8.4 Key Players
- 7.8.5 Market Forecast (2026-2034)

8 Japan Off-Grid Solar Energy Market - Competitive Landscape

8.1 Overview
8.2 Market Structure
8.3 Market Player Positioning
8.4 Top Winning Strategies
8.5 Competitive Dashboard
8.6 Company Evaluation Quadrant

9 Profiles of Key Players

9.1 Company A
- 9.1.1 Business Overview
- 9.1.2 Services Offered
- 9.1.3 Business Strategies
- 9.1.4 SWOT Analysis
- 9.1.5 Major News and Events
9.2 Company B
- 9.2.1 Business Overview
- 9.2.2 Services Offered
- 9.2.3 Business Strategies
- 9.2.4 SWOT Analysis
- 9.2.5 Major News and Events
9.3 Company C
- 9.3.1 Business Overview
- 9.3.2 Services Offered
- 9.3.3 Business Strategies
- 9.3.4 SWOT Analysis
- 9.3.5 Major News and Events
9.4 Company D
- 9.4.1 Business Overview
- 9.4.2 Services Offered
- 9.4.3 Business Strategies
- 9.4.4 SWOT Analysis
- 9.4.5 Major News and Events
9.5 Company E
- 9.5.1 Business Overview
- 9.5.2 Services Offered
- 9.5.3 Business Strategies
- 9.5.4 SWOT Analysis
- 9.5.5 Major News and Events

10 Japan Off-Grid Solar Energy Market - Industry Analysis

10.1 Drivers, Restraints, and Opportunities
- 10.1.1 Overview
- 10.1.2 Drivers
- 10.1.3 Restraints
- 10.1.4 Opportunities
10.2 Porters Five Forces Analysis
- 10.2.1 Overview
- 10.2.2 Bargaining Power of Buyers
- 10.2.3 Bargaining Power of Suppliers
- 10.2.4 Degree of Competition
- 10.2.5 Threat of New Entrants
- 10.2.6 Threat of Substitutes
10.3 Value Chain Analysis