Is Duke Energy Carolinas, LLC cheaper than Duke Energy Progress?

Yes — in 2024 Duke Energy Carolinas, LLC customers averaged 13.94 cents/kWh versus 15.54 for Duke Energy Progress (EIA-861). Duke Energy Carolinas, LLC was cheaper by 1.60 cents, about $173 per year at 10,800 kWh.

Can I switch from Duke Energy Progress to Duke Energy Carolinas, LLC?

No — distribution territories are exclusive and set by address; you cannot pick between the two wires companies. North Carolina has no residential supplier shopping either; rates are set in utility-commission proceedings.

Why is Duke Energy Progress more expensive than Duke Energy Carolinas, LLC?

EIA-861 averages reflect everything customers actually paid — supply costs, delivery rates, riders, and surcharges across each territory. Differences in generation mix, grid investment, storm costs, and customer density between Duke Energy Progress and Duke Energy Carolinas territory all feed the 1.60-cent gap.

Duke Energy Carolinas, LLC vs Duke Energy Progress: Which Is Cheaper? (North Carolina, 2024)

Duke Energy Carolinas, LLC customers paid less: an average 13.94¢/kWh in 2024 versus 15.54¢/kWh at Duke Energy Progress (EIA-861) — a gap of 1.60¢/kWh, worth about $173 per year at typical usage (10,800 kWh/yr). Their territories meet in 17 NC counties (Alamance, Anson, Buncombe, …). You cannot switch wires companies — the territory is set by your address.

Side by side (NC, EIA-861)

Duke Energy Carolinas, LLC vs Duke Energy Progress — residential averages from federal EIA-861 filings
Metric	Duke Energy Carolinas, LLC	Duke Energy Progress
2024 average price, ¢/kWh	13.94	15.54
2023 average price, ¢/kWh	11.88	14.18
Annual cost at 10,800 kWh, $/yr	$1,505	$1,679
Residential customers (2024)	1,919,372	1,356,079
Ownership	Investor-owned	Investor-owned
Counties served in NC	44	56

Average price = residential revenue ÷ sales (bundled service): the all-in price customers actually paid, including supply, delivery and riders. Profiles: Duke Energy Carolinas, LLC · Duke Energy Progress · North Carolina overview.

Where the territories meet

Both utilities file EIA-861 service territory in: Alamance · Anson · Buncombe · Caswell · Chatham · Durham · Granville · Guilford · Henderson · Jackson · McDowell · Orange · Person · Randolph · Rutherford · Stanly · Wake counties (NC, 2024).

Adjoining or overlapping territory in a county does not mean households there can pick between the two — service maps are parcel-level and fixed. The county overlap mainly matters when choosing where to live or comparing town-level costs.

Can you actually choose between them?

No — not for delivery. Distribution territories are exclusive and set by address; Duke Energy Carolinas, LLC and Duke Energy Progress do not compete for the same meters. North Carolina is a regulated retail market — there is no residential supplier shopping; rates are set in utility-commission proceedings (ncuc.gov). The price gap above mainly matters when choosing where to live, comparing towns, or benchmarking your bill.

Questions people ask

Is Duke Energy Carolinas, LLC cheaper than Duke Energy Progress?: Yes — in 2024 Duke Energy Carolinas, LLC customers averaged 13.94 cents/kWh versus 15.54 for Duke Energy Progress (EIA-861). Duke Energy Carolinas, LLC was cheaper by 1.60 cents, about $173 per year at 10,800 kWh.
Can I switch from Duke Energy Progress to Duke Energy Carolinas, LLC?: No — distribution territories are exclusive and set by address; you cannot pick between the two wires companies. North Carolina has no residential supplier shopping either; rates are set in utility-commission proceedings.
Why is Duke Energy Progress more expensive than Duke Energy Carolinas, LLC?: EIA-861 averages reflect everything customers actually paid — supply costs, delivery rates, riders, and surcharges across each territory. Differences in generation mix, grid investment, storm costs, and customer density between Duke Energy Progress and Duke Energy Carolinas territory all feed the 1.60-cent gap.

About these numbers. Rates shown are averages computed from federal regulatory filings (EIA Form 861) and public tariff databases — confirm with your utility before making decisions; your actual rate depends on your tariff, usage, and riders. Distribution utility is determined by address and generally cannot be chosen; in retail-choice states you may choose your supplier for the supply portion of the bill. Savings figures use 10,800 kWh/yr (US average residential usage) and are estimates, not quotes. EnergySavings is an independent data project by CertiHomes and is not affiliated with any utility, supplier, or government agency.