Environmental Data 2016

Transcription

1 Environmental Data 216

2 Environmental Data 216 Environmental accounting (KEPCO) KEPCO has introduced environmental accounting both on a nonconsolidated basis and for group companies to clarify the costs of environmental conservation in our business activities and the benefits achieved. FY215 assessment Environmental conservation costs Investment in environmental conservation was about 15 billion yen, 4 billion lower than the previous year. Increased expenses for feedintariff (FIT) purchases brought expenses to about 151 billion yen, 41 billion yen higher than the previous fiscal year. Environmental conservation costs (1 million yen) Category Investment Expenses FY214 FY215 FY214 FY Global environmental conservation costs ,311.9 (CO2 reductions, etc.) 2. Local environmental conservation costs (1) Measuring/monitoring environmental impact Major Items Renewable energy power purchases, SF6 gas collection Radiation control and measurement, air quality concentration measurement, marine area surveys (2) Pollution control (air pollution, water contamination, oil leakage, etc.) Air pollution control measures, water contamination prevention measures (3) Nature conservation Revegetation 3. Costs to build a circular economy (1) Industrial waste processing, recycling (2) General waste processing, recycling (3) Radioactive waste processing Industrial waste processing, PCB processing Paper recycling Lowlevel radioactive waste processing (4) Green purchasing Environmental management costs R&D costs Other costs Researchrelated work Environmental reports Load leveling, environmental conservation, energy savings and recycling, natural energy Research Laboratory repairs Total ,11.4 1,513.1 Total capital investment during the period 3, 2,541 1

3 Environmental Data 216 Operating expenses during period 31,632 26,597 Note: Based on the Environmental Reporting Guidelines (FY212 version) issued by the Ministry of the Environment. Depreciation is not calculated into expenses. Composite costs are tallied proportionally by one of three methods: (1) calculation of differences; (2) proportional division based on rational criteria; (3) proportional division based on criteria of expediency. Costs involved in generating nuclear power are calculated with the sum of individual measures to protect the environment taken as environmental conservation costs (radiation control and measurement, lowlevel radioactive waste processing, etc.). Figures may not add up due to rounding off. Effects of environmental conservation intensity decreased yearonyear due to a greater proportion of power generated from nuclear power and renewable energy sources. SOx emissions intensity also decreased yearonyear in thermal power generation overall due to a decrease in generated power output from monofuel oil combustion units without desulfurization equipment. Environmental conservation effects Category 1. Global environmental conservation 2. Local environmental conservation 3. Building a circular economy Item (unit) (before carbon credits) intensity (before carbon credits) (after carbon credits) intensity (after carbon credits) (1, tco2) (kg CO2/kWh) (1, tco2) (kg CO2/kWh) FY214 7, , FY215 Yearonyear change 6, , Air pollution control SOx emissions (t) 5,635 4,735 9 SOx emissions intensity (g/kwh) NOx emissions (t) 8,221 7, NOx emissions intensity (g/kwh) Landscape integration Revegetation area (1, m 2 ) 3,542 3,55 37 Industrial waste and other emissions (1, t) Recycling rate for industrial waste, etc. (%) Lowlevel radioactive waste processing (Rods) 2,326 6,21 3,695 Note: : from power purchased from other companies; SOx and NOx emissions: only KEPCOgenerated power; coefficient: by amount of power sold; SOx and NOx emissions coefficient: only KEPCOgenerated power 2

4 Environmental Data 216 Economic benefits from environmental conservation measures Economic benefits decreased approximately 2 million yen from the previous year due to a reduction in results from efforts that lead to cost savings. Economic benefits from environmental conservation measures (1 million yen) Revenue Category FY214 FY215 Operating revenues from recycling, etc Other Major Items Gain on sale of disused articles (recycling) Cost savings Cost savings from reuse and recycling, etc Cost savings from the purchase of recycled items Total Environmental efficiency Environmental efficiency (with FY199 as the base is calculated to indicate the relationship between environmental load and economic value. KEPCO s environmental efficiency for FY215 shows figures of 115 (electric power sold/composite index) and 69 (electric power sold/), six points and two points higher respectively than in the previous year. The primary factors for this were reductions in CO2, SOx and NOx emissions intensities and a decrease in fuel consumption. Environmental efficiency graph Electric power sold Electric power sold Composite index* (Fiscal * Composite index Environmental load of emissions CO2, SOx and NOx emissions, landfill disposal of industrial waste Resource consumed Oil, coal, LNG Note: For calculations since FY27, LIME2 integration coefficients developed by the Research Center for Life Cycle Assessment were used. 3

5 Environmental Data 216 Environmental accounting (group companies) Environmental accounting in group companies Environmental accounting figures are totaled for group companies represented on the Group Environmental Management Committee in FY215, composed of 19 companies. Environmental conservation costs (million yen) Investment Expenses Category Major Items FY214 FY215 FY214 FY215 Costs for management Environmental conservation at activities business sites and surroundings Costs for pollution control Costs for resource recycling Costs for community activities Measures to prevent air pollution and water contamination General and industrial waste processing and recycling External environmental conservation activities, etc. R&D, etc Other costs Total ,83 1,224 Environmental conservation effects (physical effects) Category Items (unit) FY214 FY215 Environmental management ISO or other external certifications (locations)* (1, tco2) Global and local environmental conservation SOx emissions (t) NOx emissions (t) Revegetation area (1, m 2 )* 3,411 3,411 Building a circular economy Industrial waste emissions (1, t) * Cumulative to end of fiscal year Economic benefits from environmental conservation effects (million yen) Category FY214 FY215 Revenue Business revenue from recycling, etc. 1,114 1,225 Cost savings Cost savings from reuse and recycling, etc..3.2 Total 1,114 1,225 4

6 Environmental Data 216 Environmentrelated data Global environmental conservation Fiscal year Unit (before carbon credits, etc.)* 1 4,73 6,569 7,28 7,325 7,141 6,487 1, tco2 (after carbon credits, etc.)* 1 4,25 6,44 6,731 7,251 7,29 6,331 1, tco2 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 * million tco2 Japan's * million tco2 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) million tco2 kg CO2/kWh Greenhouse gases N2O (dinitrogen oxide)* , tco2 other than CO2 SF6 (sulfur hexafluoride)* , tco2 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 , tco2 from office Everyday water , tco2 activities* 14 Vehicle fuel , tco

7 Environmental Data 216 *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 Fiscal year Unit 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

8 Environmental Data 216 Industrial waste, resource recycling Fiscal year Unit 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

9 Environmental Data 216 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) ,2,4trimethylbenzene 1.1 Toluene Hydrazine <.1 <.1 <.1 <.1 <.1 nhexane Benzenes (specified) < Boron compound <.1 PCB Methylnaphthalene Methylenebis (4,1phenylene) diisocyanate FY < 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. 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 FY <

10 Environmental Data 216 Radioactive substances, radioactive waste Fiscal year Unit Evaluated dose values for the public in the vicinity of power plants Radioactive gaseous waste discharged (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 Becquerel* 2 Radioactive gaseous waste discharged (iodine) 1.2E6 1.4E6 2.2E6 Becquerel* 2 Radioactive gaseous waste discharged (excluding tritium) Becquerel* 2 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 Equivalent in drums 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 Equivalent in drums 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 Equivalent in drums 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