Solar power generation for businesses (Eligible for bids) Bids will determine the FY2022 purchase price. In FY2022, bidding will be possible at 1,000 kW or more with FIP certification and from 250 to under 1,000 kW with FIT certification.
This report is the follow-up to the report published in 2019, "Solar Power Generation Costs in Japan: Current Status and Future Outlook" (the "2019 report"), and it analyzes the most recent trends in solar PV costs in Japan.
This report is the follow-up to the report published in 2019, "Solar Power Generation Costs in Japan: Current Status and Future Outlook" (the "2019 report"), and it analyzes the most recent trends in solar PV costs in
Particularly noteworthy is that in the efficient scenario the generation cost was 13.1 yen per kilowatt-hour (/kWh), approaching the average power exchange electricity price. Based on the above cost structure analysis and findings from existing research, we estimated the generation cost for solar PV in Japan in 2030 based on several scenarios.
Based on the above cost structure analysis and findings from existing research, we estimated the generation cost for solar PV in Japan in 2030 based on several scenarios. Our estimate forecasts that generation costs will drop significantly, to the 5-6 yen/kWh level (Fig. S-2).
The cost of solar power generation (per kWh) is rapidly declining on a global scale. The generation cost of solar photovoltaic (PV) (utility-scale solar, global weighted average unit cost) has plunged 73% between 2010 and 2017 to 8.5 US cents/kWh (IRENA, 2019).
While the median value for medium size power plants in Japan was 13,500 yen/kW (REI data), the US price for distributed inverters was 0.08 USD/W, which equates to 8,800 yen/kW (NREL, 2018a). Compared to distributed inverters, the unit price for inverters in Japan is approximately 50% higher.
In the case of a 30-year operating period, a solar PV power plant which commenced operation in 2030 will operate until 2059. At this time, it is likely that the scale of solar PV generation in Japan will be significantly larger. In this situation, it is possible that a frequent oversupply of electricity will occur during daytime hours.
A paid subscription is required for full access. In the fiscal year 2023, the FIT price of electricity that was generated from solar energy in Japan was set at ten Japanese yen per kilowatt hour, reaching a decade-low. The feed-in tariff (FIT) system is a national system under which the unit price of electricity is fixed by the country.
