Duke Energy Progress Bill Adjustments, 2020–2026

Source and methodology: Typical bill figures reflect Duke Energy Progress's standard reference customer of 1,000 kWh/month, as stated in annual NCUC filings and Duke Energy news releases. The line steps at each confirmed rate adjustment effective date. Dollar amounts marked † were not stated in a Duke Energy news release but were calculated directly from confirmed NCUC tariff filings and adjacent confirmed rates (Dec 2021: Rider BA-26, E-2 Subs 1272/1274–1276). The Jun 2023 interim base rate step is approximate (~+$8/mo); the Oct 2023 figure of $152.16 is the confirmed all-in anchor from the NCUC final order. Annual January DSM/EE (demand-side management and energy efficiency) rider adjustments, which typically fall under $2/mo, are not individually marked on this chart. These adjustments occur each Jan 1 as routine cost-recovery true-ups and are directionally independent of the fuel and base rate changes this chart is intended to illustrate; they are disclosed in NCUC compliance tariff filings and are reflected where confirmed in the bill figures shown above. Rate event sources: Duke Energy Progress news releases (Dec 2020, Dec 2021, Dec 2022, Jun 2023, Oct 2023, Oct 2024, Oct 2025, Dec 2024); NCUC compliance tariff filings including Rider BA-26 (E-2 Subs 1272/1274–1276); NC 4th and 5th Revised Leaf No. 601, Docket E-2 Sub 1358; NC Original Leaf No. 613, Docket E-2 Subs 1362/1370. Graphic made with the assistance of Claude.