Osaka Titanium Technologies signed a 20-year off-site PPA with Sojitz and Kansai Electric Power, the companies announced on June 4, 2025.
Under the PPA, Sojitz and its wholly-owned subsidiary Sojitz Mirai Power will develop about 200 low-voltage solar plants totaling 10MWAC/20MWDC, and commission them starting in October 2025. The output, expected to be about 19GWh annually once all assets are operational, will be delivered to the metal manufacturer’s Amagasaki Factory in Amagasaki City, Hyogo Prefecture. Kansai EPCO will serve as the retailer sleeving the PPA.
According to the Japan Energy Hub PPA database, this is Osaka Titanium Technologies’ first disclosed PPA.
Sojitz and Kansai EPCO previously signed a similarly structured but significantly larger deal with JR West, agreeing to develop 50MWAC/75MWDC of solar and supply power to the railway operator’s major train lines from FY2026. The database shows the utility agreed to sleeve several other PPAs, adding up to over 150MW of solar capacity.
The highlights growing interest in distributed portfolios of low-voltage (sub-50kWAC) assets due to faster grid connection timelines compared to high- and extra high-voltage assets and limited availability of unutilized land for utility-scale projects. Sojitz targets building 3,000 such power plants by FY2026.
