LIXIL Corporation’s “PV Roll Screen System” has won the top prize in the mitigation category of the FY2024 Climate Change Action Minister of the Environment Awards. This innovative indoor solar power generation system, which can be retrofitted onto existing building windows, is recognized as a groundbreaking technology contributing to the realization of a decarbonized society.
Balancing Decarbonization and Energy Efficiency with Innovative Technology
As the urgency for climate change countermeasures grows, LIXIL’s “PV Roll Screen System” has emerged as a noteworthy solution. Designed as an indoor solar power generation system, it combines traditional roll screen functions with solar power and energy storage capabilities. These features, along with its potential to improve window insulation and energy efficiency, earned the system the top prize at the FY2024 Minister of the Environment Awards.
Developed with NEDO support in 2022 and 2023, the system is engineered to suppress cold drafts while enhancing energy efficiency through its solar power capabilities. Additionally, its integration of USB-C and DC jacks for direct power output distinguishes it from conventional systems.
According to LIXIL’s estimates, implementing the system across all eligible windows in Japan (1.4 billion m²) could achieve approximately 12% of the construction sector’s 2030 CO2 reduction target. Its ease of installation and maintenance from the indoor side further accelerates its adoption.
Field trials conducted in public facilities in Munakata City, Fukuoka Prefecture, have validated its effectiveness in enhancing energy efficiency and resilience during emergencies. As part of its strategy to achieve carbon neutrality by 2050, LIXIL aims to expand the deployment of this innovative product.
The “PV Roll Screen System” presents a sustainable future starting from windows, offering a new pathway towards a decarbonized society.