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Effect of ESS introduction

LINGNAN TIMES KOREA  ESS Introduction

Before & After of Power Demand

Improving energy efficiency through power demand management and securing emergency power supply in case of outages.

Current State Before ESS Implementation

Results After ESS Implementation

As of January 1, 2024 (Industrial Power (High Voltage A))

Category Basic Charge (KRW/kW) Energy Charge (KRW/kWh)
Time Slot Summer (June-August) Spring and Autumn (March-May, September-October) Winter (November-February)
High Voltage A Option 1 7.220 Off-Peak 99.5 99.5 106.5
Mid-Peak 152.4 122.0 152.6
On-Peak 234.5 152.7 210.1
Option 2 8.320 Off-Peak 94.0 94.0 101.0
Mid-Peak 146.9 116.5 147.1
On-Peak 229.0 147.2 204.6
Option 3 9.810 Off-Peak 93.1 93.1 100.4
Mid-Peak 146.3 115.2 146.5
On-Peak 216.6 138.9 193.4
  • Charge the ESS with power during the off-peak hours when electricity rates are lowest
  • Discharge during peak hours when electricity rates are highest
  • Additional discharge during mid-peak hours if there is excess capacity
  • Reduce basic charges through peak load management
  • Reduce electricity usage charges through demand management
  • Reduce additional fees due to reduced usage charges
  • Achieve a minimum of 20% reduction compared to existing electricity basic charges
  • Serve as an emergency power supply during outages