#Japan #Tokyo #Solar Power #RTS

Overview of Solar Power Installation Forecast in Japan

The company Resource Total System, known for its consulting services in solar power and related businesses, released the report titled "Japan's Solar Power Installation Forecast 2025-2040" on January 20, 2026.
This report is based on the energy plan set forth in the 7th Basic Energy Plan decided by the Cabinet in February 2024, which significantly raises the projected power generation share from solar energy to between 23% and 29% by 2040. In capacity terms, this translates to an impressive 203 to 280 GW (AC), positioning solar power as a leading energy source. However, the current annual installation rate is below 5 GW, indicating that achieving these ambitious goals will require an average annual installation pace of 8 to 13 GW for the next 16 years.

Key Insights from the Report

The report forecasts the installation volumes of solar power by 2040, taking into account various areas of deployment, including residential, commercial, public and infrastructure facilities, community-based installations, agrivoltaics, and floating solar systems. It also comprehensively analyzes the regulatory environment, price trends, promotion measures, technological innovations, and the growing demand for green electricity from the power consumption side to depict how solar power will autonomously expand as a dominant electricity source.

Scenarios for Future Growth

To provide a detailed outlook, the report presents two distinct scenarios based on potential changes over the next 16 years in the societal, economic, policy, market, product, technology, and pricing aspects affecting solar power.
1. Current Growth Scenario: This envisions that the target set by the 7th Basic Energy Plan of achieving a 23% share of solar energy by 2040 is met.
2. Accelerated Implementation Scenario: This projects that, in alignment with global efforts towards carbon neutrality, Japan significantly enhances its solar power installation environment, leading to the achievement of a 29% share.

The report aims to support municipalities, research institutions, and businesses involved in the expansion of solar power systems by providing valuable insights for their strategic planning in the coming years.

For further details, you can visit the following link: Resource Total System Report

Report Details

Title: "Japan's Solar Power Installation Forecast (2025-2040)"

• - Publisher: Resource Total System
• - Publication Date: January 20, 2026
• - Pages: Approximately 180 pages
• - Format: PDF (available for download)
• - Price (excl. tax):

- Electronic Data (PDF): Members: ¥100,000, General: ¥150,000
- Printed Copy (for PDF buyers only): ¥20,000 (including shipping)
- Presentation (for PDF buyers only): ¥50,000 (excluding travel costs)

Contact Information

For inquiries regarding this publication, please reach out to:
Resource Total System
URL: https://www.rts-pv.com/
Contact: Suzuki, Sugibuchi
Email: [email protected]
Address: 3-19-2 Hatchobori, Chuo City, Tokyo, 104-0032, Japan

Company Profile

Resource Total System is Japan's only think tank and consulting firm specialized in solar power, boasting over 40 years of experience in the field. The company offers a range of services, including the dissemination of information on solar power, supporting businesses related to solar energy, and publishing various reports on photovoltaic technology for both domestic and international audiences. Guided by a vision to establish solar power as a fundamental energy source, Resource Total System remains dedicated to contributing to the growth of the solar power industry and providing valuable services to its clients.