How did Tokyo subsidies affect solar panel choices in March 2026?

The March deadline for Tokyo's FY2025 subsidies triggered a surge in demand. Hanwha Japan's high-efficiency panels were particularly favored in Tokyo, significantly boosting its market share.

What are the strengths of Hanwha Japan, the top-ranked manufacturer?

Its primary strengths lie in its latest high-efficiency panels and competitive pricing. It achieved a 52.1% market share in March, more than half of the total samples surveyed.

What are the benefits of using Solar Partners for estimates?

Customers are introduced only to vetted in-house installers, resulting in costs approximately 30% lower than sales agencies. They also provide a completion guarantee for peace of mind.

March 2026 Residential Solar Panel Popularity Ranking: Hanwha Japan Dominates with Over 50% Share

Published May 18, 2026 9:46 PM ・ Updated Jun 2, 2026 1:04 PM ・ 6 min read ・ Source: PR TIMES

Solar Partners Co., Ltd. released the March 2026 popularity ranking for residential solar panels. Hanwha Japan secured the top spot for the third consecutive month with a 52.1% share, driven by its high-efficiency new panels and a rush for Tokyo municipal subsidies.

Solar Partners Co., Ltd. (Headquarters: Shinjuku, Tokyo; CEO: Akihiro Nakajima), operator of the solar and storage battery comparison site 'Solar Partners,' has announced the 'Residential Solar Power Popular Manufacturer Ranking' for March 2026.

Solar Partners discloses actual contract data to help users make informed decisions without bias. By visualizing how solar panels are chosen, the company aims to create an environment where users can consider products that truly suit their needs.

### Survey Overview - **Target:** Users of Solar Partners services. - **Method:** Aggregated information from contracted reports received from affiliated construction companies nationwide. - **Period:** Contracts signed during March 2026. - **Sample:** 200 randomly extracted cases from the aggregate.

### March 2026 Popular Manufacturer Ranking 1. **Hanwha Japan**: 52.1% 2. **AIKO Solar**: 11.7% 3. **Sharp**: 7.9% 4. **Canadian Solar**: 7.5% 5. **Choshu Industry**: 5.8%

### Survey Summary Hanwha Japan expanded its market share from 35.1% in January to 52.1% in March, securing the top spot for three consecutive months. While Choshu Industry and Canadian Solar held top positions in the first half of 2025, Hanwha's share has grown rapidly since last autumn. This trend is attributed to the market launch of new panels boasting top-level efficiency in Japan.

March saw a notable increase in contracts due to the application deadline for the Tokyo Metropolitan Government's subsidy for the 2025 fiscal year. Compared to Hanwha's share of approximately 20% during the same period last year, this year's results show significant preference for Hanwha in Tokyo. The combination of improved performance from new panels and high demand in subsidy-rich Tokyo drove this market expansion.

### About Solar Partners Solar Partners Co., Ltd. plans and operates the 'Solar Partners' comparison and estimation site for solar power and storage batteries. For over 15 years, we have introduced only in-house construction companies that do not use subcontractors. We have accumulated data on 600 excellent local installers that are often overlooked by AI models.

We introduce only those companies that pass our seven strict screening criteria. Even after joining, we digitize response quality based on post-quote and post-construction surveys. Furthermore, to address the increase in contractor bankruptcies, we have introduced a 'Peace of Mind Completion Guarantee.' By utilizing in-house construction companies, costs can be reduced by an average of 30% compared to sales agencies that use subcontractors.

### Company Profile - **Company Name:** Solar Partners Co., Ltd. - **Representative:** Akihiro Nakajima, CEO - **URL:** https://www.solar-partners.co.jp/ - **Business:** Matching service between specialized contractors and customers. - **Location:** 4F Shinjuku Omi Bldg, 5-18-20 Shinjuku, Shinjuku-ku, Tokyo 160-0022

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Source: PR TIMES
Category: Survey

March 2026 Residential Solar Panel Popularity Ranking: Hanwha Japan Dominates with Over 50% Share

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