TEPCO has established environmental indicators to assess major environmental impacts and environmental conservation measures. Numerical targets have been set as much as possible, and a system of regular checks and reviews have been adopted toward their achievement. Owing to past efforts, steady improvement has been achieved in regard to many indicators, including power generation efficiency, air quality, and waste recycling.
|CO2 (carbon dioxide)||Unit||Performance *||Target|
|CO2 emission intensity||kg-CO2 /kWh||0.380||0.332
|20% reduction on average over the five-year period between FY2008 and FY2012, compared to FY1990 (0.304）|
|Nuclear facility utilization rate||%||71.3||43.8||53.3||-||-|
|Thermal power generation efficiency (lower heating value||%||42.2||46.1||46.9||Maintain the front-runner position|
|Amount of power from natural energies purchased||GWh||-||530||620||Expand as much as possible|
CO2 emission intensity was 0.384 kg-CO2/kWh in FY2009, and 8% lower compared to the previous year as a result of the recommissioning of Units 6 and 7 at the Kashiwazaki-Kariwa Nuclear Power Station, increased thermal power generation efficiency, and a drop in fossil fuel consumption accompanying a decline in power sales. And CO2 emission intensity after reflecting carbon credits was 0.324 kg-CO2 /kWh.
|SOx emission intensity (average of all power sources)||g/kWh||0.17||0.10||0.06||Maintain the world's cleanest levels||
|NOx emission intensity (average of all power sources)||g/kWh||0.22||0.13||0.09||Maintain the world's cleanest levels||
|Evaluated value of public radiation dose in the vicinity of nuclear power stations||mSv/year||< 0.001||< 0.001||< 0.001||< 0.001||< 0.001
|PCBs (polychlorinated biphenyls)||Unit||Performance||Target|
|Pole transformers (treatment of insulating oil inadvertently containing PCB)||kl/year||-||3,338||3,411||3,000, from FY2010|
|Pole transformers (washing treatment of main housing unit)||unit /year||-||105,396||107,987||About 100,000, from FY2010|
|Industrial waste recycling rate||%||86||99.8||99.9||Maintain current level|
(Note) Figures are rounded to the nearest tenth.