Japan’s 29th solar auction allocates 38.2 MW of PV capacity

Japan’s Green Investment Promotion Organization has released the final results of its latest auction for utility-scale solar energy projects.

The state-run agency said that 38.2 MW of PV projects were selected in the procurement exercise. It was Japan’s 29th auction for utility-scale solar, running with an auction volume of 115 MW and ceiling price of JPY 9.60 ($0.060)/kWh.

The auction received twelve applications requesting a total 87.3 MW. Authorities approved eight projects, with a weighted average successful bid price of JPY 8.89/kWh.

The largest-approved project, belonging to AC12 LLC, has a planned capacity of 29.9 MW. It has the highest supply price of approved projects, at JPY 9.48/kWh. 

The remaining seven approved projects vary between 400 kW and 1.99 MW in size, with supply prices between JPY 5.30/kWh and JPY 7.80/kWh.

This is the second completed PV auction during Japan’s 2026 financial year, following the 28th auction which allocated 89.2 MW of PV capacity across 29 projects at an average final price at JPY 6.74/kWh. In this auction, the lowest awarded price was JPY 0.00/kWh.

The 27th auction allocated 79 MW of PV projects at a final average price of JPY 4.61/kWh, while the 26th auction assigned 75.3 MW across 37 projects. The lowest bid was JPY 4.97/kWh and the highest JPY 8.75/kWh.

The 25th auction allocated 223.3 MW at an average price of JPY 6.58/kWh, while the 24th auction allocated 79 MW at an average final price of JPY 4.06/kWh. In both these procurement exercises, the lowest bid was also JPY 0.00/kWh.