Technical FAQs 4

When will solar panels be required in Tokyo?

Starting April 2025, Tokyo will implement a new regulation requiring solar panels on newly constructed homes. What Is the Mandatory Solar Panel Installation? Starting in April 2025, Tokyo will require installing solar panels on all new residential buildings.

Will Tokyo subsidize solar panels?

In March last year, the Tokyo Metropolitan Government established a 150 billion yen fund to subsidize the installation of solar power generation equipment for Tokyo residents. Subsidies will be provided if solar panels are installed during the construction of new eco-friendly houses or while retrofitting existing houses with insulation.

Will Tokyo require new detached homes to install rooftop solar panels?

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.

Can solar panels be installed on new homes in Japan?

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.

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