Environment-related data

Transcription

1 Environmentrelated data Global environmental conservation (before carbon credits, etc.)* 1 4,73 6,569 7,28 7,325 7,141 6,487 1, (after carbon credits, etc.)* 1 4,25 6,44 6,731 7,251 7,29 6,331 1, coefficient (before carbon credits, etc.) (by amount of electric power sold)*.311 kg CO2/kWh coefficient (after carbon credits, etc.) (by amount of electric power sold)*.281 kg CO2/kWh Global * Japan's * Reference Electric power industry* 5 (before carbon credits, etc.) (after carbon credits, etc.) coefficient (before carbon credits, etc.) (by amount of electric power sold) coefficient (after carbon credits, etc.) (by amount of electric power sold) kg CO2/kWh Greenhouse gases N2O (dinitrogen oxide)* , other than CO2 SF6 (sulfur hexafluoride)* , Utilization rate of nuclear power facilities* % Net thermal efficiency of thermal power facilities* % Total energy use* 9 637,884, ,617, ,923,443 76,782,346 71,315,529 GJ Coal 3,669 3,724 4,237 3,89 4,34 3,871 1, t Heavy oil , kl Crude oil 1,16 4,285 5,375 6,44 4,24 3,366 1, kl Thermal fuel consumption LNG 4,737 6,571 7,377 7,729 8,824 8,319 1, t 1, kl Wood pellets (equivalent in heavy oil) Fuel for nuclear power generation (weight of preirradiated uranium) tu Refurbishment of hydroelectric plant (Cumulative total output since FY1989) 5,652 kw Power distribution loss rate* % SF6 gas emissions Upon inspection t Upon removal.1.2 t SF6 gas collection rate Upon inspection % Upon removal % State of development and introduction of new energy sources 7, ,38.4 1, , , ,. (Cumulative by fiscal year end at KEPCO facilities)* 11 Solar power generation 7,181 1,884 1,696 11,24 11,662 11, kw Wind power generation Fuel cell batteries Office electricity use* GWh Everyday water use* , m 3 Energy and Vehicle fuel costs km/l resource savings Vehicle fuel use (gasoline) , kl (Office division) Vehicle fuel use (diesel) , kl Copier paper use 1,82 1, t Lowpollution vehicle introduction rate* % Office electricity , from office Everyday water , activities* 14 Vehicle fuel ,

2 *1 : Calculated on the basis of coefficients by type of fuel for amount of thermal fuel consumed; includes power purchased from other companies *2 coefficient (by amount of power sold) = ( from power generation carbon credits) amount of power sold *3 Global : IEA "CO2 Emissions From Fuel Combustion" 215 Edition *4 Japan's : Source: Greenhouse Gas Inventory Office of Japan (Center for Global Environmental Research, National Institute for Environmental Studies) *5, coefficient in the electric power industry: Environmental Action Plan in the Electric Power Industry (Federation of Electric Power Companies of Japan) *6 Published in FY21 results; figures are CO2 equivalents *7 Utilization rate of nuclear power facilities = amount of power generated (permitted output calendar hours) 1 *8 Net thermal efficiency of thermal power facilities = (amount of power transmitted quantity of heat per kwh) total amount of input heat (lowest heat value standard) 1 *9 Figures reported to the government based on the Act on the Rational Use of Energy. (Fossil fuel used, purchased electricity, purchased heat) *1 Power distribution loss rate = [1 {(amount of power sold + amount of power at transformer substation) (generated and purchased electric power amount of power at KEPCO power plants)}] 1 *11 Actual figures for FY214 include equipment used by the company. *12 The scope for calculation of office electricity use and everyday water use has been revised *13 Rate of introduction of lowpollution vehicles = No. of lowpollution vehicles purchased Total no. of vehicles 1 *14 from office activities = amount of electricity used coefficient after carbon credits, etc. from everyday water use = amount of everyday water used emissions coefficient from vehicle use = amount of vehicle fuel used coefficient by type of fuel Source: Ministry of the Environment, Summary of Energy & Economic Statistics Local environmental conservation SOx emissions (from KEPCO power plants)* 1 2,224 5,18 6,23 7,89 5,635 4,735 t SOx emissions For KEPCOgenerated power* intensity For KEPCOgenerated thermal power* g/kwh NOx emissions (from KEPCO power plants)* 4 5,356 7,445 9,448 1,13 8,221 7,397 t NOx emissions For KEPCOgenerated power* g/kwh intensity For KEPCOgenerated thermal power* Amount of limestone used , t Amount of ammonia used , t COD emissions* t Amount of industrial water used (for power generation) , m 3 Amount of service water used (for power generation) , m 3 River water, groundwater , m 3 Seawater (desalinated) , m 3 Revegetation Thermal power plants rate* 8 Nuclear power plants % (end of fiscal Electric power offices (substations) Rate of conversion to underground transmission lines (end of fiscal % Rate of conversion to underground distribution lines (end of fiscal % 6 *1 SOx emissions: Calculated from amount of sulfur in fuel and removals by desulfurization equipment *2 SOx emissions intensity (for KEPCOgenerated power)=sox emissions (KEPCO power stations) KEPCOgenerated power *3 SOx emissions intensity (for KEPCOgenerated thermal power) = SOx emissions (KEPCO power stations) KEPCOgenerated thermal power *4 NOx emissions: gaugemeasured values *5 NOx emissions intensity (for KEPCOgenerated power)=nox emissions (KEPCO power stations) KEPCOgenerated power *6 NOx emissions intensity (for KEPCOgenerated thermal power)=nox emissions (KEPCO power stations) KEPCOgenerated thermal power *7 COD emissions: calculated from values measured by analysis of concentration in wastewater *8 Revegetation rate=(business site revegetation area Business site total area) 1

3 Industrial waste, resource recycling Amount of Industrial Waste and Other Emissions Soot particles (Heavy/crude oil ash, coal ash, etc.) Sludge (Desulfogypsum, wastewater processing sludge, etc.) Cinders Demolition debris (Waste concrete utility poles, etc.) 1, t Metal scraps Glass/ceramic scraps (Thermal insulation scraps, insulator scraps, etc.) Waste oil Waste plastic Other Amount of industrial waste for landfill disposal Glass/ceramic scraps (Thermal insulation scraps, insulator scraps, etc.) Sludge (Wastewater processing sludge, etc.) Demolition debris , t Cinders Waste plastic Metal scraps Other Industrial waste recycling rate* % Lowconcentration PCB industrial waste Amount processed* 2 (utility pole transformers) Insulating oil , kl Approx. 24 Transformer cases (after processing) 1, units Green procurement rate for office supplies* % *1 Industrial waste recycling rate = [(Industrial waste and other emissions Amount of landfill disposal) (Industrial waste and other emissions)] 1 *2 Values are cumulative values from past fiscal years. *3 Green procurement rate for office supplies = (Price for green procurement of office supplies (43 applicable categories) total price for purchasing office supplies (43 applicable categories)) 1 7

4 Management of chemical substances (PRTR) Name of targeted Emissions (t/ chemical substance FY21 FY211 FY212 FY213 FY214 2aminoethanol Asbestos (specified) Ethylbenzene Ferric chloride Xylene HCFC Styrene 2.6 Dioxins (specified) (mgteq/ (mgteq/.41 (mgteq/ (mgteq/.28 (mgteq/ 1,2,4trimethylbenzene 1.1 Toluene Hydrazine <.1 <.1 <.1 <.1 <.1 nhexane Benzenes (specified) < Boron compound <.1 PCB Methylnaphthalene Methylenebis (4,1phenylene) diisocyanate FY (mgteq/ 11 < Name of targeted Amount moved (t/ chemical substance FY21 FY211 FY212 FY213 FY214 2aminoethanol Asbestos (specified) Ethylbenzene <.1 <.1 Ferric chloride 3. Xylene HCFC225 Styrene Dioxins (specified) 1,2,4trimethylbenzene Toluene.44 <.1 Hydrazine <.1 < nhexane Benzenes (specified) Boron compound PCB.87 Methylnaphthalene <.1 <.1 Methylenebis (4,1phenylene) diisocyanate Notes: 7. (mgteq/ The chart show total values reported in compliance with the PRTR Law "" indicates no emissions or transfers at targeted business site "<.1" indicates less than.1 t/year emissions, etc. "" indicates no business sites targeted for totalling Significant figures are displayed in two digits.66 (mgteq/.23 (mgteq/.16 (mgteq/.5 (mgteq/ FY < (mgteq/

5 Radioactive substances, radioactive waste Fiscal year Unit Evaluated dose values for the public in the vicinity of power plants (inert gas) <.1 <.1 <.1 3.4E9 1.7E9 6.8E1 <.1 <.1 5.4E7 4.5E8 <.1 2.3E8 <.1 2.5E8 Millisieverts* 1 (iodine) 1.2E6 1.4E6 2.2E6 (excluding tritium) Radioactive solid nuclear waste generated (2L drums)* 3 1,132 8,437 1,936 12,472 11,466 3,963 2,44 4,29 1,658 4,229 2,213 4,888 3,84 4,978 1,619 3,729 2,57 4,424 4,5 4,869 Radioactive solid nuclear waste shrinkage (2L drums)* 3 1,485 1,675 12,476 15,82 17,339 4,219 2,817 4,75 2,736 4,85 3,397 5,71 3,152 6,583 4,443 3,449 3,189 4,994 6,22 6,313 Radioactive solid nuclear waste cumulative amount stored (2L drums)* 3 18,223 28,64 46,262 15,986 28,1 45,184 14,445 28,313 44, 11,835 27,491 43,932 95,963 25,887 41,18 33,321 32,72 32,132 3,412 28,968 *1 Millisieverts (effective dose): unit indicating the degree of radiation's effect on the human body *2 Becquerel: Unit of radioactivity (one becquerel is defined as one nucleus decaying per second, representing the rate at which radioactive material emits radiation) *3 Storage conditions at solid nuclear waste repositories 9