Verification Testing for Practical Use of Next-Generation Solar Cells Commences
The Tokyo Metropolitan Government is proud to announce the completion of Japan's first installation of film-type next-generation solar cells at a sewerage facility. This initiative, undertaken in collaboration with a development company, aims to advance the practical application of domestically developed next-generation solar cell technology. Verification testing, the largest of its kind in the country, officially began Wednesday May 24, 2023.
Overview of Next-Generation Solar Cell Verification
(1) Installation location
Morigasaki Water Reclamation Center: On the covering of the reactor at the sewage treatment facility (Fig. 1)
(2) Number of panels, area, and rated output
3 types of batteries of different sizes x 3 panels (Fig. 2), approx. 9 m2, approx. 1 kW (total) * the largest in Japan
(3) Key testing objectives
Measurement of power generation efficiency, verification of corrosion resistance, etc.
Fig. 1: Morigasaki Water Reclamation Center
Fig. 2: Next-generation solar cells (in the red frame)
Research partner
SEKISUI CHEMICAL CO., LTD.
This company promotes research on film-type next-generation solar cells for generating large amounts of electricity.
Period of Joint Research
December 1st, 2025
Reference: Joint Research Content
(1) Location
Morigasaki Water Reclamation Center, Bureau of Sewerage
Address: 2-5-1 Showajima, Ota-ku, Tokyo
(2) Purpose of research
Verify the applicability of film-type next-generation solar cells to sewage facilities.
Reference: Next-Generation Solar Cells
Next-generation solar cells are next-generation solar cells that use a crystalline structure called perovskite. Compared to silicon-based solar cells, they have the following properties:
- Since they are thin, light and flexible (Note 1), the range of places they can be installed is wider.
- The development of manufacturing technology may lead to mass production and reduced manufacturing costs (Note 2).
- This is a technology originating in Japan, and about 30% of the world's production of iodine, which is the main raw material, is produced in Japan.
Note 1: Approx. 1 mm, 1.5 kg/m2 (with the development partner)
Note 2: The development partner aims to realize a roll-to-roll manufacturing process.
Therefore, it is expected to be highly competitive against silicon-based solar cells.
For Inquiries
Technical Development Section, Planning and Coordination Division, Bureau of Sewerage
TEL: 03-5000-7643
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