Japan has announced the results of the 27th solar power auction conducted under the Feed-in Premium (FIP) scheme for the fourth round of fiscal year 2025. The auction was carried out under the provisions of the Act on Special Measures Concerning the Promotion of the Use of Renewable Energy Electricity. The results were published in accordance with the relevant guidelines issued by Japan’s Ministry of Economy, Trade, and Industry regarding the implementation of renewable energy power generation equipment auctions.
The auction targeted solar power generation facilities with a capacity of 250 kW or more operating under the FIP system. The total procurement capacity offered in this round was 79 MW, equivalent to 79,000 kW. The upper limit for the supply price was set at 8.68 yen per kWh.
A total of 38 project plans were submitted for eligibility screening to participate in the auction. Out of these, 37 projects were notified that they were eligible to take part in the bidding process. The total generation capacity associated with these eligible projects reached 196,085 kW. Eventually, 23 bids were formally submitted in the auction, representing a combined generation capacity of 161,940 kW.
The weighted average bid price recorded in this round stood at 6.49 yen per kWh. After evaluating the bids, the auction authority awarded contracts to 11 projects with a combined generation capacity of exactly 79,000 kW, matching the announced procurement capacity.
The auction results also revealed a wide range of bid prices. The lowest successful bid price was recorded at 0.00 yen per kWh, while the highest winning price reached 6.49 yen per kWh. The weighted average winning price settled at 4.61 yen per kWh, reflecting competitive bidding and declining costs in the solar sector.
Among the successful bidders, Godo Kaisha Hinomoto Power secured a 400 kW project with a bid price of 0.00 yen per kWh. Eurus Energy Holdings was awarded a 400 kW project at 3.90 yen per kWh. Enerolution secured two projects with capacities of 445.5 kW and 495 kW at prices of 3.98 yen and 5.98 yen per kWh, respectively.
Larger projects were also included in the winning list. Nemuro Nishihama Solar LLC secured a 16 MW project at 4.46 yen per kWh, while Manago Solar LLC won a 29.9 MW project at the same price. X-Elio won two projects with capacities of 19,999 kW and 9,999 kW at 4.67 yen and 5.12 yen per kWh, respectively.
Additional winners included Daiichi Solar Power LLC with a 400 kW project at 6.48 yen per kWh, and Daiwa House Industry, which secured two smaller projects totaling 961.5 kW at 6.49 yen per kWh. The results highlight strong participation and continued competition in Japan’s solar power market as the country expands renewable energy deployment.
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