| ITEM | UNIT | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|
| Renewable energy generation | MWh | 844 | 862 | 809 | 1,361 |
| No. of buildings with solar power facilities (cumulative) | units | 12 | 13 | 15 | 18 |
| Solar power capacity (cumulative) | kW | 677 | 712 | 1,192 | 1,507 |
| Electrical energy self-sufficiency rate | % | 0.88 | 0.85 | 0.78 | 0.75 |
| No. of certified green buildings (cumulative) | units | 5 | 5 | 6 | 6 |
| Percentage of LED lighting | % | 85 | 86 | 87 | 90 |
| No. of water-saving toilets | units | 2,914 | 2,941 | 2,999 | 3,101 |
| No. of EV charging stations | stations | 20 | 20 | 96 | 97 |
| No. of certified eco-friendly product procurements | cases | 74 | 74 | 121 | 307 |
| Total expenditure for certified eco-friendly product procurements | million KRW | 785 | 644 | 1,280 | 3,122 |