Developments in de-carbonizing Sophia

2020

Sophia introduced the Premium Zero Plan, an electricity procurement scheme that allows us to use 20 million kWh per year of renewable energy, which amounts to 95% of the electric power used at our main Campus in Tokyo.

*100 Renewable　No greenhouse gases are emitted as power is sourced from renewable energy, such as solar, wind and biomass, and does not include nuclear or fossil sources. (We do not use Non-fossil Fuel Certificates (NFCs) to offset fossil fuels.)

2021

We switched our entire natural gas consumption to carbon-neutral LNG*.

We use city gas that offsets the greenhouse gas equivalent emitted  from natural gas extraction to combustion with the greenhouse gas equivalent  absorbed through forest conservation and afforestation, etc ; and therefore, we virtually emit no greenhouse gases.

2022

Yotsuya Campus accounts for 94.2% of the energy collectively consumed at Sophia University’s major campuses^※1(Figure 1). By energy type, electric power accounts for 77.1% and city gas (LNG^※2), 22.8%. Fuels (heavy oil, etc.) are used for heating, etc. at Hadano Campus, but accounts for a very small fraction. (Figure 2)

　

Greenhouse gases emitted by facilities on main campuses include not only those from energy use, but also emissions associated with water use, sewage, and waste treatment. Greenhouse gas emissions were estimated based on such use and waste volumes in fiscal 2022^※3 . Greenhouse emissions (CO2 equivalent) in fiscal 2022 amounted to 13,846 tons, with electric power consumption accounting for around 73.1% and city gas (LNG), for around 23.1% (Figure 3). From fiscal 2020 through fiscal 2021, Sophia University has procured 100% renewable power for our main campuses. In fiscal 2021, Sophia University procured carbon neutral LNG^※4 for the Yotsuya and Mejiro Seibo campuses. This has led to substantially net zero greenhouse gas emissions from electric power and city gas use, with the exception of some facilities, thus significantly reducing emissions by around 94.9%.

^※1 Energy consumption in fiscal 2022
^※2 Liquefied natural gas
^※3 Estimations for emissions from water use and sewage are based on the emission coefficient under the Tokyo Cap & Trade scheme.
Waste volume estimations were conducted for the Yotsuya and Mejiro Seibo campuses based on LCI Database IDEA Version 2.3 (copyrighted work by the Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology (AIST) and Sustainable Management Promotion Organization)
^※4 Virtually zero-emission LNG that has offset greenhouse gas emissions generated from well to combustion with credits
^※5 Rented areas and dormitories, etc

2023

From June 1, 2020, when Sophia University introduced 100% renewable electricity at Yotsuya Campus (Chiyoda-ku, Tokyo), it has been gradually introducing renewable electricity at its other campuses. The remaining low-voltage power used at Hadano Campus is now sourced by 100% renewable electricity ^※1 as of November 2023.

As a result, the electricity used on all Sophia University campuses, which collectively amount to approximately 22 million kwh per year, has been replaced by renewable energy which virtually does not emit carbon dioxide. We have achieved the target set by the Renewable Energy University League of Japan to convert all electricity used on campus to renewable power during 2030-40 ahead of schedule. ^※2

^※1 The renewable electricity is in line with the criteria set out by RE100, a global initiative.
^※2 Electricity consumption in FY2022.
Renewable Energy University League Website: https://www.re-u-league.org/about-1/
This excludes off-campus dormitories, leased properties where we bear no authority, and meter-rate/flat-rate lighting.

Sophia University Estimation Results of Scope 1-3 Greenhouse Gas Emissions in FY2023

Sophia University’s Office of Environment and Facility Management has been calculating Scope 1 and 2 emissions and estimating Scope 3 emissions related to infrastructure (mainly water, sewage, and waste).

Based on this, we estimated the remaining Scope 3 emissions (emissions related to business activities) from our financial statements to be disclosed. As a result, Scope 3 emissions covered approximately 60% of total emissions, followed by Scope 2 emissions accounting for 30% and Scope 1 emissions accounting for the remaining 10%.

We will harness these results to promote energy conservation and creation and to further reduce emissions associated with our business activities. We will also continue to improve the accuracy of our estimates (including coverage).

<Conditions>
(1) Calculations are based on the amount of activity for fiscal year 2022.

(2) Scope 1 refers to emissions from the use of fuels and city gas.
This is obtained and applied from the Act on the Rational Use of Energy (Greenhouse Gas Emissions Accounting and Reporting System).

(3) Scope 2 refers to emissions from the use of electricity.
This is obtained and applied from the TEPCO Energy Partner CO2 Emission Coefficient (2022).

(4) Scope 3 mainly covers upstream activities and is estimated based on our financial statements, etc.
Emission factors are mainly obtained from the Green Value Chain Platform, and the following are individually cited.
・For water and sewage, the emission factor from the Tokyo Cap & Trade Program is used
・For waste, the Yotsuya and Mejiro-Seibo campuses were covered, using the LCI database IDEA Version 2.3
・For transportation costs, the LCI database IDEA Version 2.3 is referenced
*IDEA is the copyrighted work of the IDEA Laboratory, Safety Science Research Division, National Institute of Advanced Industrial Science and Technology (AIST), and the Sustainable Management Promotion Organization.

(5) The following are currently excluded from calculations
・Emissions from refrigerant leaks from air conditioners
・Emissions from chemical substances used in experiments that are released into the atmosphere
・Emissions from student commuting
・Emissions related to all downstream activities, including investment, except for leased items
・Student dormitories located outside the campus, and meter-rate and flat-rate lighting contracts

Recent feedback from Tokyo Metropolitan Government based on the Tokyo Cap-and-Trade Program (comparison in FY2021)          

Sophia University’s GHG emissions are about 43% less than the average of 65 academic institutions in Tokyo (Edu. Av) . This is equivalent to almost 24% less than the average for the top 25% of the above institutions (Edu. 25).  All of these results resulted in significant reductions in CO2 emissions per unit floor area. Comparison of GHG emissions from Sophia University and academic institutions in Tokyo