Japan Awards 75 MW of Solar Projects to 27 Companies in 26th Auction
The original auctioned capacity was 163 MW
December 4, 2025
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A total of 27 companies won the Organization for Cross-regional Coordination of Transmission Operators (OCCTO), Japan’s 26th solar power auction for projects of at least 250 kW, securing 75.4 MW out of the original auctioned capacity of 163 MW under the country’s Feed-in Premium (FIP) program.
The FIP program was introduced in 2022 to promote renewable energy by adding a premium to the market price of power generated from renewables.
The winning bidders are as follows:
Thirty-three projects had applied for qualifications, and 27 submitted real price bids. All the price bids were won after the auction’s third round.
The maximum allowed bid price was ¥8.75 (~$0.057)/kWh. The winning bid prices ranged from ¥4.97 (~$0.032)/kWh to ¥8.75 (~$0.057)/kWh, with an average of ¥7.13 (~$0.046)/kWh.
One of the winning companies, Daiichi Solar Power Generation, had its winning bid cancelled in the 23rd auction, which preceded this one, because it did not secure the project land.
In the 23rd auction, OCCTO awarded 93 MW to five bidders. The highest winning price was ¥6.98 (~$0.045)/kWh, and the weighted average winning price was ¥5.06 (~$0.033)/kWh.
Global solar installations hit a record high of 597 GW in 2024, a 33% increase year-over-year from 2023, according to a new report from SolarPower Europe.
Japan accounted for 1% of the total installations during the year. The U.S. constituted 8% of the total installations, India 5%, Brazil 3%, Germany 3%, Spain 2%, Turkey 2%, Italy 1%, and France 1%.
After global installations crossed the 2 TW solar capacity milestone in late 2024, the report predicted that global installations can reach 1 TW of solar capacity per year by the decade’s end.
In 2023, the Japan Bank for International Cooperation and the Government of India signed an agreement to establish a $600 million India-Japan Fund to address climate and environmental challenges.
