News & Media

What is the Power Supply Adjustment (PSA)?

November 27, 2023

---

The PSA is a per kWh charge or credit, which takes into account variances in the District’s net power supply cost compared to the amount that is in the base rates. The power supply costs include such items as purchased electricity and fuel. When calculated, the PSA charge or credit takes into account the previous 6 months power supply expenses and the forward 12 month projection of power supply costs. When those calculations show an increase, the PSA can increase, when they show a decrease, the PSA can decrease. However, the PSA cannot go above one-cent per kWh charge or below a half-cent per kWh credit, regardless of the change in power supply costs. The PSA is reviewed and can be adjusted twice a year to be effective on June 1 and December 1.