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US retail energy supplier

Duke Energy US

Duke Energy Retail Sales is the competitive supply arm of Duke Energy Corp (NYSE: DUK), one of the largest investor-owned utilities in the United States. While Duke is the default regulated utility in Florida, Indiana, the Carolinas and parts of Ohio and Kentucky, its retail subsidiary competes as a chooseable supplier in the deregulated Ohio and Kentucky markets — selling fixed-rate electricity and natural-gas plans alongside independent REPs.

See Duke plans Call 1-800-943-7585
Founded 1904 8.4 million (parent group, utility + retail combined) Charlotte, NC 2 states served

Founded

1904

Years in the US market

Customers

8.4 million (parent group, utility + retail combined)

Households served

Employees

About 28,000 (parent Duke Energy Corp)

Workforce size

About

Who is Duke Energy?

Registered as Duke Energy Retail Sales, LLC, Duke Energy uses this legal name for state public-utility-commission filings and customer contracts. The trading name on bills is the shorter, more recognisable form.

The company is headquartered in Charlotte, NC, where it runs senior management, customer operations and regulatory liaison with state commissions.

Duke Energy was established in 1904. A longer track record means more years operating under state-commission rules and a wider history of customer feedback, billing and regulatory interactions.

Duke Energy is part of the Duke Energy Corporation group, which provides shared governance, financial backing and a broader pool of expertise in wholesale-market trading, hedging and regulatory work.

Service area

Where Duke Energy operates

Electricity

1 state

  • OH

Natural gas

2 states

  • OH
  • KY

Service availability varies by zip code within each state. Eligibility depends on your local utility's deregulation status — check on Duke Energy's website with your zip code before enrolling.

Plan structure

What plan types does Duke Energy offer?

Fixed-rate electricity

Locks in the supply rate (¢/kWh) for the full contract term — typically 12 or 24 months. The most common Duke Energy Retail Sales product in Ohio, marketed against the AEP Ohio and Duke Ohio Price-to-Compare.

Fixed-rate natural gas

Locks in the gas commodity rate ($/Mcf or $/therm) for the contract term. Sold in Ohio (Duke Ohio + Columbia Gas territories) and Kentucky (Duke Kentucky territory).

Variable-rate

Rate can change every billing cycle, tied to wholesale market prices. Often the renewal default when a fixed plan ends — read the renewal letter carefully and reshop if needed.

Renewable content: Duke Energy Retail Sales has historically offered an optional green add-on in Ohio that matches a portion of supply with Renewable Energy Certificates (RECs). The parent group is also one of the largest US owners of utility-scale solar and wind generation, but those assets feed the regulated utilities, not competitive retail plans.

See current Duke plans & rates

Timeline

Duke Energy — key moments

  1. 1904

    Duke Power Company founded in Charlotte, NC, by James B. Duke and his brother Benjamin to electrify the Piedmont textile mills with Catawba River hydropower.

  2. 1997

    Duke Power merged with Pan Energy to form Duke Energy Corporation, expanding into natural-gas pipelines and merchant generation.

  3. 2006

    Duke Energy acquired Cinergy Corp, picking up Cincinnati Gas & Electric and PSI Energy — the deal added Ohio, Indiana and Kentucky service territories and the Duke Energy Retail Sales business.

  4. 2012

    Duke Energy merged with Progress Energy, becoming the largest US electric utility by customer count.

  5. 2025

    Harry Sideris succeeded Lynn Good as President & CEO of Duke Energy Corporation.

Contact

Reach Duke Energy customer service

Duke Energy's customer service handles enrollment questions, billing, switching and complaints. Have your account number from a recent bill ready to speed up the call.

  • For outages, downed wires or any physical-grid issue, always call your <em>local utility</em>, not Duke Energy Retail Sales. The retail arm only handles supply contracts and billing for the supply portion.
  • In Ohio, the regulated utility for most customers is either AEP Ohio, Duke Energy Ohio, AES Ohio (formerly DP&L) or FirstEnergy (Illuminating Company, Ohio Edison, Toledo Edison). Duke Energy Retail Sales is available in deregulated parts of all four territories.
  • Have your account number and recent bill ready before calling. Supply-only retail accounts share the utility account number.

Customer service

1-800-943-7585

Mon-Fri 8 a.m. - 6 p.m. ET

Duke Energy online account

Frequently asked

Duke Energy — answers to common questions

Both — and the distinction matters. Duke Energy Corporation is the regulated utility in Florida, Indiana, North Carolina, South Carolina, parts of Ohio and parts of Kentucky. In those territories Duke owns the wires, restores outages and is the default supplier for any household that has not switched. Duke Energy Retail Sales, LLC is a separate competitive subsidiary that sells fixed-rate supply contracts in the deregulated portions of Ohio and Kentucky. This page is about the competitive supply business — for outage or delivery questions you always call the local utility.

No. Those states do not have residential retail-supply competition, so every customer in Duke’s utility territory there is served by Duke at the rate approved by the state public service commission. The only states where Duke Energy Retail Sales is offered as a chooseable supplier are Ohio (electricity and gas) and Kentucky (gas).

No. Reliability is determined by the wires, poles and substations owned by your local utility, not by the supplier billing your supply portion. Switching supply contracts never changes which company restores power after a storm or reads your meter. Choose a supplier on price, contract terms and reviews — not on outage performance.

Both are utility-affiliated retail suppliers (Duke is the retail arm of Duke Energy Corp; AEP Energy is the retail arm of American Electric Power). They compete on the same PUCO Apples-to-Apples chart in Ohio. Rates move month to month — sometimes Duke is cheaper, sometimes AEP, sometimes a smaller independent REP beats them both. Always compare the unit rate (¢/kWh), monthly fee (if any), contract term and early-termination fee for your zip code before signing.