Tokyo''s new solar panel mandate: ''Can Japan avoid Germany''s solar
This article covers considerations on Tokyo''s new solar panel installation mandate, current energy generation challenges and examples from Germany''s initiatives.
This article covers considerations on Tokyo''s new solar panel installation mandate, current energy generation challenges and examples from Germany''s initiatives.
The system is designed to promote the improvement of the environmental performance of buildings by suppliers, who are obliged to install the panels, together with owners of custom
To increase the proportion of renewable energy generation, the Tokyo Metropolitan Government will set a precedent by requiring new detached homes to install rooftop solar panels.
On April 1, 2025, the Tokyo Metropolitan Government implemented a new regulation mandating the installation of solar power systems and energy-saving measures in new residential
The Tokyo Metropolitan Government, aiming to achieve its "carbon halving" goal of reducing the city''s greenhouse gas emissions by 50% by 2030, is promoting the use of
Learn about Tokyo''s landmark solar panel mandate for new homes, set for April 2025. This news is key to Japan''s goals for building energy efficiency and net-zero emissions.
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Solar panels on the roofs of homes in Hachioji, western Tokyo (Asahi Shimbun file photo) Japan’s first local regulation requiring solar panel installations on new single-family homes took effect on April 1 in Tokyo and Kawasaki in Kanagawa Prefecture.
All new detached houses in Tokyo after April 2025 are required to have solar panels installed. However, if you are purchasing a property in a different part of Japan, it's possible that solar panels may not be mandated in the region.
“Tokyo’s mandatory solar panel installation for new buildings is a step in the right direction for promoting green energy,” said Masayuki Mae, an associate professor at the University of Tokyo, who specializes in energy-efficient housing.
However, small and medium-sized construction companies are not subject to this obligation. It is estimated that only half of the new buildings in Tokyo (40,000 to 50,000 units per year) will be subject to this obligation. Other cities in Japan are also starting to mandate the installation of solar power equipment.