Fuji Susono Factory Achieves 100% Equivalent Renewable Energy

In July 2025, ULVAC, Inc. completed its transition to using 100% equivalent renewable energy at its Fuji Susono Factory ― a key site for its semiconductor and electronics businesses.

The Fuji Susono Factory entered into an off-site corporate power purchase agreement (PPA)^[1] with TEPCO Energy Partner, Inc. on February 26, 2025, utilizing a solar power plant developed by CO2OS Inc.

Entering into this off-site corporate PPA service will enable the Fuji Susono Factory to combine electricity generated by newly built solar power plants that offer additionality^[2] with other equivalent renewable energy, resulting in the factory receiving approximately 3,200 MWh of renewable energy annually and achieving a reduction of about 1,300 tons of CO₂ emissions per year. In addition to these efforts, the Fuji Susono Factory will purchase renewable energy certificates, enabling it to use 100% equivalent renewable electricity starting in July 2025.

Aiming to achieve its environmental targets of "reducing greenhouse gas emissions in 2030 by 50% as compared with 2023 (Scope 1 and 2)" and "achieving net zero greenhouse gas emissions by 2050," the ULVAC Group will continue its efforts to realize a sustainable society by systematically advancing the introduction of solar power systems and promoting the procurement of various renewable energy sources.

[1]　Off-site corporate power purchase agreement (PPA): A contract in which the owner of a renewable energy source (e.g., electricity provider, developer, or investor) and an electricity purchaser (e.g., energy consumer) agree to buy and sell renewable electricity at pre-agreed prices and for a fixed term. This renewable energy is then generated at an off-site location (separate from the consumption site) and delivered to the purchaser via the general power grid. (Source: Ministry of the Environment / Mizuho Research & Technologies, "Off-site Corporate PPA")

[2]　Additionality: Additionality refers to the development of new renewable energy sources that directly contribute to an increase in total renewable energy generation.

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