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Environmental Data
Key Indicator Performance Indicator Unit 2016 2017 2018
Environmental Management
ISO 14001Certification Coverage
%
100
100
100
Purchase Percentage as Green Products
%
93.8
93.9
91.7
Environmental Risk
Amount of Water Used
kiloton(kt)
2.5
2.0
2.0
Amount of Energy Used
TOE/1000
5.3
5.2
4.7
Investment on R&D
billions KRW
410
434
427
Environmental Partnership
Underground Installation Rate of Transmission Lines
%
11.3
11.9
12.5
Underground Installation Rate of Distribution Lines
%
17.1
17.7
18.4
Indoor Construction Rate of Substations
%
63.8
63.8
64.8
Climate Change Partnership
CO2 Emissions
10,000
tCO2-eq
139.7
147.5
136.6
Transmission & Distribution Losses
%
3.59
3.52
3.56