Our power source mix, non-fossil certificate usage status, and CO2 emission coefficient [retail supply] (FY2020 results)

We sell some customers renewable energy plans that use 100% hydroelectric and geothermal power sources, as well as virtually CO2_-free plans that use non-fossil fuel certificates. The power source composition and non-fossil fuel certificate usage for other plans is as shown above.

1. Non-fossil fuel power sources, including renewable energy
   Of this electricity, the portion that does not use non-fossil fuel certificates is considered to have value as renewable energy and CO ₂ It has no value as a zero-emission power source, and its CO emissions are lower than the national average for electricity, including thermal power generation. ₂ It is treated as electricity with emissions.
   
2. FIT Electric
   Part of our costs for procuring this electricity is covered by levies collected from all electricity users, including those who are not our customers.
   Of this electricity, the portion that does not use non-fossil fuel certificates is considered to have value as renewable energy and CO ₂ It has no value as a zero-emission power source, and its CO emissions are lower than the national average for electricity, including thermal power generation. ₂ It is treated as electricity with emissions.
   
   This applies to electricity generated from solar, wind, hydroelectric (less than 30,000 kW), geothermal and biomass power.
   
   Overview of the Feed-in Tariff Scheme for Renewable Energy
   
3. Electricity procured from the wholesale power exchange
   This electricity includes hydroelectric, thermal, nuclear, FIT electricity, renewable energy, etc.
   
4. others
   This includes electricity procured from other companies where the power plant cannot be identified.
   
5. Usage of Non-Fossil Certificates
   The usage of Non-Fossil Certificates in FY2020 corresponds to electricity generated from January to December 2020. However, since trading of Non-FIT Non-Fossil Certificates started for electricity generated in April 2020, the usage is calculated by multiplying the amount of electricity sold by 9/12, as is the case with the calculation stipulated in the Act on Promotion of the Use of Non-Fossil Energy Sources and Effective Use of Fossil Energy Raw Materials by Energy Suppliers (the "Energy Supply Structure Enhancement Act").

• The calculations are made and published based on the Ministry of Economy, Trade and Industry's "Guidelines for Electricity Retail Sales."
  
• Calculated based on the amount of electricity generated by our company and the amount of electricity procured from other companies (excluding remote islands).
  
• By purchasing non-fossil certificates, we aim to increase the actual proportion of non-fossil electricity.
  
• Due to rounding, totals may not add up to 100%.

​_CO2 emission factor (adjusted emission factor) 0.479kg-_CO2 /kWh

• The above values were reported to the government in accordance with the Act on Promotion of Global Warming Countermeasures (Global Warming Countermeasures Act).