Denkosha Launches Experimental Solar Panel Project with Sumitomo Realty for Residential Energy Solutions
In a move towards sustainable energy solutions, Denkosha Co., Ltd., headquartered in Minato, Tokyo, has announced the launch of a pilot project for residential solar power systems in collaboration with Sumitomo Realty and its housing subsidiary. This innovative initiative utilizes Denkosha's cutting-edge lightweight and thin solar panels, the 'Flexible Solar G+'. This collaboration marks a significant step in expanding solar energy deployment in residential buildings.
Starting from August 6, 2025, the 'Flexible Solar G+' panels will be placed on the rooftops of model houses operated by the Sumitomo Realty group, specifically in Musashino, Tokyo, and Narita city, Chiba. The aim of this experiment is threefold: to assess the installation and durability of the lightweight solar panels, to examine their compatibility with Sumitomo Realty’s building designs, and to evaluate the energy conversion efficiency and glare reduction capabilities of panels installed on north-facing roofs.
The introduction of the 'Flexible Solar G+' aims to remove obstacles for homeowners regarding the installation of solar panels, such as the need for costly seismic reinforcement. By demonstrating the practicality and effectiveness of these lightweight panels, existing single-family homes will find it easier to adopt solar energy solutions. The long-term vision is to extend offerings not only to existing homes but also to new construction and multi-family housing units, thereby encouraging energy self-sufficiency and contributing to the peace of mind of homeowners.
Denkosha has positioned itself at the forefront of the renewable energy movement, aligning its goals with the global push towards carbon neutrality. The 'Flexible Solar G+' is engineered to facilitate solar energy generation in areas previously deemed unsuitable—be it due to insufficient load-bearing capacity on roofs or irregular wall structures. Since its debut in 2023, this technology has been successfully implemented in industrial buildings, warehouses, offices, and public facilities, proving its versatility and reliability.
The 'Sumifu x Energy Karies' service also plays a crucial role in this initiative. This service allows homeowners to install solar power equipment and storage batteries at zero initial cost while providing ongoing support for maintenance and upgrades. Such programs aim to maximize the potential for solar capacity installation across Japan, addressing not only the increased generation of renewable energy but also challenges associated with balancing electricity supply and demand.
Furthermore, Denkosha is committed to harnessing the environmental value of generated electricity, aiding in Japan’s transition towards a decarbonized society. As more households join the renewable energy fold, Denkosha plans to leverage their innovative technologies and partnerships to facilitate this transition seamlessly. The pilot project exemplifies the company's dedication to fostering a sustainable future through advanced solar technology and collaborative efforts in residential energy solutions.
This symbolic collaboration between Denkosha, Sumitomo Realty, and their affiliates marks the beginning of a substantial shift in residential energy solutions in Japan.
Whether through cutting-edge technology or strategic partnerships, Denkosha remains steadfast in its commitment to carbon neutrality and energy innovation.
This project not only signifies a technical progression but also reflects the increasing importance of renewable energy systems in building a sustainable future. Through innovation and collaborative action, Denkosha and its partners strive to empower households across Japan to adopt green energy solutions effectively.
Starting from August 6, 2025, the 'Flexible Solar G+' panels will be placed on the rooftops of model houses operated by the Sumitomo Realty group, specifically in Musashino, Tokyo, and Narita city, Chiba. The aim of this experiment is threefold: to assess the installation and durability of the lightweight solar panels, to examine their compatibility with Sumitomo Realty’s building designs, and to evaluate the energy conversion efficiency and glare reduction capabilities of panels installed on north-facing roofs.
The introduction of the 'Flexible Solar G+' aims to remove obstacles for homeowners regarding the installation of solar panels, such as the need for costly seismic reinforcement. By demonstrating the practicality and effectiveness of these lightweight panels, existing single-family homes will find it easier to adopt solar energy solutions. The long-term vision is to extend offerings not only to existing homes but also to new construction and multi-family housing units, thereby encouraging energy self-sufficiency and contributing to the peace of mind of homeowners.
Denkosha has positioned itself at the forefront of the renewable energy movement, aligning its goals with the global push towards carbon neutrality. The 'Flexible Solar G+' is engineered to facilitate solar energy generation in areas previously deemed unsuitable—be it due to insufficient load-bearing capacity on roofs or irregular wall structures. Since its debut in 2023, this technology has been successfully implemented in industrial buildings, warehouses, offices, and public facilities, proving its versatility and reliability.
The 'Sumifu x Energy Karies' service also plays a crucial role in this initiative. This service allows homeowners to install solar power equipment and storage batteries at zero initial cost while providing ongoing support for maintenance and upgrades. Such programs aim to maximize the potential for solar capacity installation across Japan, addressing not only the increased generation of renewable energy but also challenges associated with balancing electricity supply and demand.
Furthermore, Denkosha is committed to harnessing the environmental value of generated electricity, aiding in Japan’s transition towards a decarbonized society. As more households join the renewable energy fold, Denkosha plans to leverage their innovative technologies and partnerships to facilitate this transition seamlessly. The pilot project exemplifies the company's dedication to fostering a sustainable future through advanced solar technology and collaborative efforts in residential energy solutions.
This symbolic collaboration between Denkosha, Sumitomo Realty, and their affiliates marks the beginning of a substantial shift in residential energy solutions in Japan.
Whether through cutting-edge technology or strategic partnerships, Denkosha remains steadfast in its commitment to carbon neutrality and energy innovation.
Overview of Denkosha Co., Ltd.
- - Company Name: Denkosha Co., Ltd.
- - Location: 2-10-4 Shiba, Minato, Tokyo, 105-0014
- - CEO: Nobuya Nakajima
- - Founded: February 11, 1928
- - Business Focus: Solar and wind power generation, maintenance of electrical systems in buildings, development and sales of energy solutions, and subsidy application assistance.
- - Capital: 900 million yen
- - Corporate Website: Denkosha
- - Flexible Solar G+ Product Page: Flexible Solar G+
This project not only signifies a technical progression but also reflects the increasing importance of renewable energy systems in building a sustainable future. Through innovation and collaborative action, Denkosha and its partners strive to empower households across Japan to adopt green energy solutions effectively.
Topics Consumer Products & Retail）
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