Introducing the on-site PPA model to a semiconductor manufacturing site in Japan

Japan Semiconductor Corporation Oita Operations

Japan Semiconductor Corporation’s Oita Operations introduced the on-site PPA^*1 model in April 2024. Toshiba Energy Systems & Solutions Corporation supplied the in-house solar power generation unit installed at the site. This is the largest solar power generation system installed on the premises of Toshiba Electronic Devices & Storage Corporation Group, and it is expected to generate approximately 5.83 million kWh of electricity per year, all of which will be consumed at the site. The GHG emissions reduction effect of this installation is expected to be 2,793 tons per year in FY2024. Toshiba Device & Storage Group is committed to achieving 100% renewable energy usage^*2 at all of its semiconductor manufacturing sites in Japan by FY2030.

• PPA: Power Purchase Agreement. A type of contract in which electricity consumers purchase 100% renewable energy directly from power providers. The on-site PPA model involves installing power generation units on the premises, roofs, etc. of electricity consumers.
• The Group is expected to achieve an effective 100% renewable energy usage rate by using environmental value certificates for electricity from renewable energy sources such as hydropower, geothermal power, solar power, and other sources that have zero CO₂ emissions.

• https://toshiba.semicon-storage.com/jp/company/news/news-topics/2023/02/corporate-20230210-1.html (Toshiba Electronic Devices & Storage Corporation) (Japanese only)

Aerial photograph of Japan Semiconductor Corporation Oita Operations