NEDO has opened funding applications under the Green Innovation Fund to develop mass production technology for tandem solar cells
The 6-year project (2025–2030) aims to accelerate commercialization and field demonstration of perovskite tandem solar modules
The initiative targets overcoming efficiency losses in large-area perovskite cells, with testing planned on rooftops and ground-mounted installations
Japan’s New Energy and Industrial Technology Development Organization (NEDO) has invited applications to fund the development of mass production technology for next-generation tandem solar cells. The call has been issued under the Green Innovation Fund.
NEDO will support selected research and development (R&D) projects with the aim of quickly commercializing tandem perovskite solar cell technology and demonstrating its use in the field. The project will run for 6 years, from 2025 to 2030.
Currently, perovskite solar cell technology suffers from a significant decline in performance when used on a large area. NEDO says it plans to develop manufacturing technology for large, high-performance perovskite solar modules and will test them on both rooftops and the ground to evaluate power generation.
This round is open to companies, national research and development agencies, universities, and other corporations.
Announced on October 3, 2025, the application round is open for submissions till November 17, 2025, on NEDO’s website.
Under the country’s 7th Basic Energy Plan, Japan aims to promote perovskite solar technology to establish 20 GW capacity by 2040. It targets achieving a cost of JPY 20/kWh by 2025, JPY 14/kWh by 2030, and eventually JPY 10 to 14/kWh or lower by 2040 for perovskite (see Japan To Aim For 20 GW Perovskite Solar Cell Capacity By 2040).
NEDO’s solar PV technology-centered strategy, released earlier this year, listed the challenges to the development of solar in the country and recommended measures to address them to boost development, including perovskites and tandem cells (see Japan’s NEDO Identifies Solar PV Challenges To Address).
