Japan-based technology company Panasonic Holdings Corporation has advanced the start of full-scale mass production of its glass-type perovskite solar cells from fiscal year 2030 to April 2029 at Nagahama City, Shiga Prefecture.

Panasonic began selling pre-production units of its glass-type perovskite solar cells manufactured at its Moriguchi facility in September 2026.

The company said it is gathering information on installing and operating solar cells through customer installations. It plans to use this experience to develop a mass-production technology at the Nagahama facility and support the technology’s commercial adoption.

Panasonic attributed its decision to accelerate mass production to growing market expectations and government policy support for perovskite solar technology.

The glass-type perovskite solar cells combine proprietary material technology, inkjet coating, and laser processing to provide flexibility in size, transparency, and design.

The company is also developing materials to improve durability and is using glass sealing technology to meet building material performance requirements.

Panasonic’s pre-production glass-based perovskite solar panels feature a laminated-glass structure, with maximum dimensions of 1.8 m × 1.0 m and glass thickness options of 3+3 mm and 6+6 mm. The panels are available with float glass or high-strength glass and can be customized with decorative designs.

The modules, scheduled for launch in April 2029, will have larger dimensions of up to 1.8 m × 1.2 m, with additional glass thickness options of 4+4 mm and 5+5 mm. They will also be available in laminated insulating glass configurations, with tempered glass as an additional option.

Panasonic said building-integrated solar cells require electricity generation, transparency, design compatibility with buildings, dimensional flexibility, ease of installation, and long-term durability.

The company aims to develop power-generating glass that can be incorporated into windows and exterior surfaces of buildings.

Panasonic said it is pursuing the technology under its Technology Future Vision, which outlines its research and development priorities through 2040. The initiative focuses on using previously underutilized building surfaces for renewable electricity generation.

Perovskite solar cells are emerging as a next-generation technology that could improve module efficiencies and transform solar manufacturing. Advances in perovskite-silicon tandem cells and other cell architectures could help manufacturers achieve higher efficiencies and improve competitiveness.

Recently, researchers from Australia’s UNSW Sydney collaborated with UTMO Light to achieve a world-record-certified stabilized power conversion efficiency of 23.5% for a large-area perovskite solar submodule. The 30 × 30 cm submodule, with an aperture area of 676 cm², surpassed the previous efficiency benchmark by 0.6 percentage points.

Researchers at the Indian Institute of Technology Guwahati (IIT Guwahati) claimed to have developed a formamidinium-based perovskite semiconductor technology for solar cells and memory devices, using a molecular interface-engineering method that helped solar cells achieve 25.73% efficiency, converting one-quarter of incident sunlight into electricity.