Panasonic Breakthrough! 'Power-Generating Glass Windows' to Launch in 2028: Solar Energy Conversion via Window Panes

Panasonic plans to launch a new product called the 'power-generating glass window' in 2028, integrating thin-film, high-efficiency perovskite solar cells into glass. This solar glass achieves an energy conversion efficiency of 18.1% and incorporates perovskite solar cells larger than 800 cm². On Thursday, Panasonic launched a pilot project installing this glass on the balcony of a model house within its Kanagawa Prefecture smart-town initiative. A representative involved in the battery’s development stated: 'We will market it globally based on its world-leading efficiency—any location worldwide that uses glass is a potential market, such as office windows and skylights in shopping malls.' The cell leverages Panasonic’s flexible inkjet-printing technology for perovskite—developed for displays—to uniformly deposit the material onto glass surfaces. A perovskite layer less than one micrometer thick is sandwiched between two panes of glass. However, because perovskite cells appear nearly black, integrating them into glass reduces transparency and diminishes light transmission. To address this, Panasonic employs a horizontal stripe pattern on the glass, rendering approximately half of the surface transparent while still enabling power generation.

Japan’s Panasonic: Mass-production line advanced to 2026; plans to launch pilot production line for 1.8 m × 1 m perovskite BIPV modules this autumn

Recently, Panasonic Holdings (HD) announced it will commercialize 'power-generating glass'—building-integrated photovoltaics (BIPV) combining perovskite solar cells with construction materials—in 2026, advancing its mass-production target by two years. Compared with conventional solar cells, perovskite solar cells offer greater flexibility in installation locations and are expected to play a pivotal role in promoting renewable energy adoption. Leveraging inkjet technology honed through manufacturing televisions and other displays, Panasonic has developed a method to form perovskite solar cells by coating perovskite material directly onto glass building materials. Because these panels can be used just like standard architectural glass, generating electricity from building façades becomes significantly easier. Panasonic plans to begin construction of a pilot production line at its R&D facility in Moriyoshi City, Osaka Prefecture, by the end of 2024, targeting the manufacture of full-size products measuring 1 m × 1.8 m, with the aim of commencing large-scale production as soon as possible. Tatsuo Ogawa, the company’s Chief Technology Officer (CTO), stated: 'We aim to release the product globally in test form by the end of fiscal year 2026 to secure customer validation and approval.'

Panasonic Accelerates Mass Production of Perovskite Solar Glass

22 hours ago

Panasonic plans to begin large-scale production of glass-based perovskite solar cells in April 2029, one year ahead of schedule, to boost Japan's renewable energy deployment through power-generating windows.

bloomberg

2026-10-20

Panasonic Accelerates Mass Production of Perovskite Solar Glass

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