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Before April 1, 2023

 

After April 1, 2023  (Note:  COPA rate is not yet determined.  COPA rate in calculation is current rate for comparison.)

 

   Key

  1.  Cost of Power Adjustment
  2.  Washington State Effective Tax Rate 
     Effective Tax Rate)
  3.  1000 Minimum Demand
  4.  Demand Charge