A University of Tokyo study, recently published in the Journal of Photonics for Energy, demonstrates that a dual-axis sun-tracking photovoltaic (PV) array mounted three meters above a rice paddy can generate competitive power while preserving high-quality rice yields.
Who makes photovoltaics in Japan?
In the 2000s, Japanese manufacturers and exporters of photovoltaics included Kyocera, Mitsubishi Electric, Mitsubishi Heavy Industries, Sanyo, Sharp Solar, Solar Frontier, and Toshiba. However, these manufacturers had stopped mass-producing PV by 2019.
How many agrivoltaic projects are there in Japan?
By the end of FY2019, there were 2,695 agrivoltaic projects, approximately 670MW, covering 742 hectares of agricultural land in Japan. This had increased to 3,474 projects on 872.7 hectares by FY2020. These projects have been commissioned under the feed-in-tariff program. The government budgeted a 1.4billion JPY to support agrivoltaic in FY2020.
Can agrivoltaic be a substitute for mega-solar PV plants in Japan?
In Japan, the bottleneck for developing mega-solar PV plants is securing the land. Developers have therefore been eyeing the agrivoltaic market as a substitute. The commissioning of solar PV plants on agricultural land is a sensitive topic in Japan.
Can agrivoltaic revive abandoned land in Japan?
On the one hand, Japan has a low self-sufficiency rate for food production, and any policy that would decrease farmland yield is sure to be scrutinized by the government. On the other hand, agricultural land area has decreased by 28% since 1958, and agrivoltaic could bring an economical solution to revive some abandoned land.
How will Japan's 2030 environmental goals affect solar power?
Japan's 2030 environmental goals and the preliminary energy mix proposal that came with them are pushing for an increase of solar PV generation to 15% of the nation's power, versus 7% in the previous plan. In Japan, the bottleneck for developing mega-solar PV plants is securing the land.
Developers have therefore been eyeing the agrivoltaic market as a substitute. The commissioning of solar PV plants on agricultural land is a sensitive topic in Japan. On the one hand, Japan has a low self-sufficiency rate for food production, and any policy that would decrease farmland yield is sure to be scrutinized by the government.