[SMM PV News] Japan Adds Up to 6 GW Solar in 2025

Published: Mar 6, 2026 11:14

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Japan installed an estimated 5.8 to 6 GW of solar in 2025, pushing its cumulative capacity past 100 GW. According to RTS Corp, growth was driven by C&I power purchase agreements and new-build rooftop solar mandates in Tokyo and Kawasaki. Installations in 2026 are expected to remain steady, with a potential market rush before FiT/FiP subsidies for >10 kW systems end in FY2027. Long-term, Japan aims for solar to be its largest power source by 2040 (targeting up to 280 GW) and is actively subsidizing perovskite technology to hit a 20 GW target.

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