How much does solar PV cost in Japan?

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.

How much will solar PV cost in Japan in 2030?

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).

Do you need a subscription to use solar energy in Japan?

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.

How long will a solar PV power plant operate in Japan?

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.

How much does a solar PV module cost?

Solar PV module costs account for the largest proportion of total investment costs. As shown in Fig. 3, module unit prices have been declining markedly. In 2018, the median price was around 60,000 yen /kW, but in 2021, it was approximately 30,000 yen/kW, so the cost has fallen by roughly half. Note: The bar graph shows quartiles from 25% to 75%.

What is the unit price of inverters in Japan?

Compared to distributed inverters, the unit price for inverters in Japan is approximately 50% higher. However, the upper quartile value for inverter unit price in Japan is 9,800 yen/kW, close to the global standard. From the above, we will envision the following two scenarios for the unit price of inverters in 2030.