Sojitz develops 44 MW solar plant in Wakayama without public support

Japanese group Sojitz, through its dedicated project company Mirai Soden Kada LLC, has launched a development plan for a 29.9MWAC/44.2MWDC solar power plant in Wakayama City, located in Wakayama Prefecture. Commissioning is scheduled for December 1, 2027, following completion of construction work on November 30 of the same year.

A strategy outside the feed-in tariff

The project does not fall under the national feed-in tariff (FIT) support system. Its business model is expected to rely on a corporate power purchase agreement (PPA). The company is awaiting the necessary permits before beginning the construction phase.

Engineering, procurement, and construction (EPC) will be managed by Kyocera Communication Systems. The site will feature 67,440 photovoltaic modules of 655 watts each, supplied by Chinese manufacturer Trina Solar.

Expansion of high-voltage solar assets

This project is part of a series of similar initiatives led by Sojitz on extra high-voltage infrastructure. The group has already commissioned projects such as the Ibusuki Yamakawa plant (14MWAC/17.6MWDC) in Kagoshima Prefecture and the Kuji Samuraihama plant (8.5MWAC/12MWDC) in Iwate Prefecture. Some of these assets have been partially or fully acquired by Mizuho Leasing, while operations remain under Sojitz Mirai Power.

Large-scale growth target via PPAs

In parallel, Sojitz is accelerating the rollout of small-scale solar facilities dedicated exclusively to corporate PPAs. The group has signed a 50MWAC/75MWDC agreement with railway operator JR West and a separate 10MWAC/20MWDC contract with Osaka Titanium Technologies. In the medium term, it aims to develop 3,000 such installations across Japan by fiscal year 2026.