Test Rate Calculator

Choose a Service Type:

Enter Usage From Bill


Before April 1, 2025

After April 1, 2025 (Note: COPA rate is not yet determined. COPA rate in the calculation is the current rate for comparison.)

Key

  1. Cost of Power Adjustment
  2. Washington State Effective Tax Rate
    (Effective Tax Rate)
  3. 1,000 Minimum Demand
  4. Demand Charge