Since April 2025, Kawasaki has mandated the installation of solar panels on new buildings. As part of its Five Major Projects under the Kawasaki City Basic Plan for the Promotion of Global Warming Countermeasures, the city launched the Integrated Promotion Project for Building Solar Power Generating Equipment.
Kawasaki allocated 800 million yen in subsidies for fiscal 2025, nearly quadrupling the previous year’s budget.


Kawasaki is conveniently located in the centre of the Tokyo metropolitan area on the opposite side of the Tama River from Haneda Airport. It is bordered to the north across the Tama River by Tokyo and to the south by Yokohama, with the Tama Hills to the west and Tokyo Bay to the east. 