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DEC NC Rate Case 2019

Duke Energy Carolinas North Carolina Rate Case

Learn how we're building a smarter, more reliable energy future.

On Sept. 30, 2019, Duke Energy Carolinas asked the North Carolina Utilities Commission (NCUC) to review its rates as the company continues working to reduce carbon emissions, strengthen its grid and improve the customer experience.

In spring 2020, Duke Energy worked with the North Carolina Utilities Commission, the Public Staff, and other parties to postpone the rate case hearing due to the COVID-19 pandemic’s impact on daily life and the need for additional safety precautions. The evidentiary hearing is now scheduled to begin on July 27, 2020.

The NCUC will ultimately set new customer rates after conducting a review process that includes multiple opportunities for public comment and a determination of whether the company's investments were prudent and in customers' best interest.

How a rate case works

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Working today for a smarter tomorrow

The proposed new rates would be used to cover a range of upgrades, improvements and innovations Duke Energy Carolinas has made to provide more value to customers, including:

Shifting to cleaner energy

  • Duke Energy is proposing to shorten the remaining depreciable lives of several coal-fired power plants as it transitions to cleaner energy sources, including more carbon-free renewables and highly efficient natural gas.
  • The company is responsibly managing coal ash and safely closing ash basins at operating and former coal plant sites in the Carolinas. Federal and state regulatory compliance costs incurred since 2017 to safely close ash basins at seven sites in the Carolinas are included in the proposal.
  • We are building a smart-thinking grid that will support the growth of solar power, battery storage, microgrids and electric vehicles – enabling cleaner energy options across the state.

Improving reliability and grid resiliency

  • We are a society that is dependent on the 24/7 flow of electricity to our homes, businesses and schools. We are continuing work to improve the grid, making it stronger and more resistant to power outages from severe weather and flooding, and better protected against physical and cyber threats.
  • Self-healing technology is helping to speed restoration by automatically detecting power outages and quickly rerouting power to customers. During Hurricane Florence in 2018, this technology helped to avoid more than 80,000 customer outages.
  • This rate request includes costs to rebuild the electric system and restore power after major storms in 2018. If Senate Bill 559 (currently under consideration by the N.C. General Assembly) becomes law, Duke Energy will seek to securitize these costs, addressing them through lower interest rates to provide savings to customers.

Providing customers more convenience

  • The utility recently completed deployment of more than 2 million smart meters for customers in the Carolinas, providing customers enhanced usage data and usage alerts, improved outage detection and enabling new programs tailored to help customers make smarter energy choices and save money.
  • We're also proposing to eliminate individual credit and debit card fees for residential customers when paying bills.

DEC NC map

Duke Energy Carolinas:
Rate case at a glance

  • 2 million customers served
  • Overall net requested increase of 6.0%
  • Typical 1,000-kWh residential bill would increase from $108.20 to $116.26, if approved by the NCUC
  • Rates will remain below the Southeast Atlantic region and national averages

Customer class

Average net rate increase percentage







This table shows the average impact proposed for each customer class. The specific increase for individual customers will vary, depending on the rate they pay.

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2019 Duke Energy Carolinas Rate Case