Since June 1, 2020, Sophia University’s Yotsuya Campus (Chiyoda Ward, Tokyo) has been switching its electricity consumption so that 100% of energy is from renewable sources*¹. On March 17, 2022, the electricity supplying Buildings No.13 and No. 14 and Sanada Moat Athletic Grounds was switched so that 100% of electricity is from renewable sources, resulting in renewable energy accounting for 100% of the electricity consumed on the campus*².

Additionally, on December 1, 2021, Yotsuya Campus switched its entire natural gas consumption to carbon-neutral LNG*³.

Accordingly, all of the roughly 17 million kilowatt hours of electricity and 910 thousand cubic meters of natural gas used by the campus each year*⁴ has been switched to energy sources that are effectively carbon neutral. In this way, the university’s largest campus in terms of energy consumption*⁵ is making a significant effort toward decarbonization.

*2. Conforms to the standards of RE100, a global initiative.
Introduction is also underway at the Mejiro Seibo Campus and Hadano Campus.

*3. Natural gas that effectively results in no greenhouse gas emissions as the volume of CO₂ emissions generated through all processes, from extraction through to combustion, is offset by the absorption of an equivalent volume of CO₂ through initiatives such as forest planting and conservation. Introduction is also underway at the Mejiro Seibo Campus.

*4. Consumption figures are for the 2020 academic year

*5. The Yotsuya Campus accounts for approximately 95% of energy used at Sophia University.