CO2 emission factor and other environmental conservation effects have been calculated.
The long-term shutdown of the Tomari Nuclear Power Station has forced us to utilize alternative thermal power generation to make up for supply shortages, so CO2, SOX and NOX emissions have remained high. We expect to reduce these emissions in the future with measures such as stably operating our LNG-fired thermal power station (Ishikariwan Shinko Power Station), which has superior environmental characteristics.
|Global warming countermeasures||CO2 emission factor (kg-CO2/kWh) unadjusted emission factor is given in parentheses.||0.656
|SF6 recovery rate (%)||During equipment inspection||99||99|
|During equipment removal||99||99|
|Local environmental conservation||SOX emissions intensity (g/kWh)||0.83||0.66|
|NOX emission intensity (g/kWh)||0.61||0.52|
|Formation of recycling-based society||Amount recycled (10,000-ton units)||105.7||84.3|
|Final disposal amount (10,000-ton units)||4.3||2.5|
|Environmental management*1||Landscape preservation measures
Distribution line length (km)*2
|Greening area (1,000 m2 units)||14,781||14,925|
Plant operations and other factors lead to fluctuations in environmental conservation costs. In FY2020, both of Environmental conservation cost and Economic effect increased on account of the operation of high-efficiency LNG-fired Ishikariwan Shinko Power Station unit1. Consequently, Cost effectiveness did not change compared with previous year. We will continue to work hard to enhance managerial efficiency as we engage in highly cost-effective environmental conservation activities.
|A. Environmental conservation cost (expense)||¥18.11 billion||¥27.82 billion|
|B. Economic effect||¥11.51 billion||¥17.74 billion|
|Cost effectiveness (B / A)||0.63||0.63|