North Carolina DEC Rate Case

While we are currently evaluating the North Carolina Utilities Commission’s order, we disagree with some of the findings in the order. The company will evaluate next steps, keeping in mind that it is critical to balance the needs of our customers with smart investments that keep costs as low as possible and keep North Carolina competitive for the long term.

On Feb. 28, 2018, Duke Energy Carolinas and the N.C. Public Staff reached a partial settlement with respect to the proposed rate request filed on Aug. 25, 2017. Following the settlement, Duke Energy Carolinas proposed a $512 million increase in revenue, which equates to a 10% average rate increase for all customer groups for the next four years. Duke Energy Carolinas is pleased to work with the N.C. Public Staff to find common ground in this request and believes this is a positive step forward in this proceeding.

  • August 25, 2017

    Duke Energy files a request to adjust rates with NCUC

  • Winter 2017/2018

    Customers and consumer advocates express their opinion and submit testimony

  • Winter 2018

    The NCUC holds a hearing and reviews the request and all testimony submitted

  • Spring 2018

    After extensive review, the NCUC makes the final decision and adjusts rates, as appropriate

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Thousands of Duke Energy employees, including Danny, Dylan and Blake, are working hard to deliver affordable, reliable, increasingly clean energy.

Frequently Asked Questions


  • Recent work to modernize power plants and generate cleaner energy, responsibly manage coal ash and improve reliability while enabling more options for customers is at the heart of the request by Duke Energy Carolinas to change customer rates. 

    Nearly half of the proposed increase in rates is related to investments made to generate electricity for customers from cleaner sources of energy.

    The filing with the North Carolina Utilities Commission (NCUC) requests to increase revenues by about $647 million, for an overall increase across all customer classes of 13.6%.
  • The average rate increase from the proposed changes for residential customers would be 16.7%, while commercial and industrial customers would see an average increase of 10.9%. The specific increase for individual customers will vary depending on the rate they pay.

    If the proposal is approved by the NCUC, a residential customer who uses 1,000 kilowatt-hours of electricity per month would see an increase of $18.72 on their monthly bill.
  • A base rate case is a public regulatory process where a utility must demonstrate to the North Carolina Utilities Commission (NCUC) why a proposed increase in rates is needed. This independent, public process helps ensure transparency and fair rates based on the costs to serve our customers.

    Duke Energy Carolinas must demonstrate to the NCUC why the rate increase is needed. The Public Staff and other interested stakeholders audit our filings and vet the company’s request. The commission then thoroughly reviews our request and typically holds multiple public hearings across Duke Energy Carolinas territory to allow customers to comment. In early 2018, the commission will conduct an evidentiary hearing and consider our written and oral testimony, along with viewpoints from others representing customer groups and other stakeholders. We expect a decision by the spring 2018. If approved, we have requested new rates go into effect spring 2018.
  • Yes, the NCUC will establish opportunities for the public to comment, through public hearings or directly, at the appropriate time during the rate-making process.
  • For decades, reliable, affordable electricity in this state was made possible by coal. With coal came coal ash – the byproduct of decades of generating electricity from this resource. It’s a waste that was produced each time we turned on a light switch, watched a television or charged a mobile phone. In fact, a typical residential family today will generate more than 150 pounds of coal ash each year from consuming electricity to meet their household needs. 

    But like any waste, we must ensure that coal ash is responsibly managed. As your local electric provider, it’s our job to take care of the waste, and we will do it responsibly. But the cost of that service is a responsibility we all share as consumers of electricity, so that the public and the environment are protected now and in the future.

    Duke Energy customers will never pay for the company’s response to the 2014 coal ash release at the Dan River Steam Station, or for any coal ash-related fines or penalties the company incurs. We take responsibility for our actions in those matters and those costs will be borne by Duke Energy shareholders.
  • Recent changes in state and federal regulations have changed the scope and scale of ash basin closure in the Carolinas. Those changes have resulted in costs that could not have been anticipated and are now being accounted for as part of this deferral.
  • Duke Energy is committed to the safe and economic recycling of coal ash and other coal combustion byproducts (CCBs). CCBs are materials formed when coal is burned to generate electricity. Coal ash is used as a valuable ingredient in a wide range of concrete products and as a structural fill material in place of soil or other mined materials. Gypsum, which is produced as part of the process to lower emissions from coal power plants, is recycled and used in wallboard for the construction industry, as a raw material in the production of cement, or for use as a soil amendment and/or soil stabilizer in agriculture.

    Duke Energy recycles about 75% of the coal combustion byproducts it produces today in North Carolina. And we are committed to finding new ways to recycle more of this material. 

    Recycling CCBs for new applications turns waste into a benefit by:

    • Supporting the local economy
    • Reducing greenhouse gas emissions
    • Helping manage costs for customers when compared to disposal
  • It’s important to us to give our customers more options to help them better manage energy and ultimately save money – so we’re connecting with our customers through new tools like usage updates, free home energy audits and a menu of energy-saving tips, programs and incentives for every budget. To find the right energy-saving program for your household, visit

    We’re also proud to provide support to those customers who need it most, through initiatives like the Neighborhood Energy Saver Program that provide energy-saving upgrades at no cost to income-qualified homeowners.
  • Smart meter technology enables customers to see how much power they use and when they use it, so they can reduce their monthly energy use and costs. Customers who have the meters can also choose their own billing schedule instead of having one assigned. Smart meters enable a two-way conversation with our computer systems, alerting us quickly about outages and helping us respond faster to restore service. In the future, a smart meter may even report the outage on your behalf.

    Duke Energy Carolinas has installed more than a million smart meters in the Carolinas since 2012 and will continue to roll out the technology to ensure more customers benefit.
  • Investment in the development of new generation is a cost typically paid for by customers.

    Duke Energy Carolinas has made an investment that will significantly reduce the time needed to develop a new nuclear plant when the utility determines it is most beneficial for meeting customer energy needs. While we are canceling further development of the Lee Nuclear project at this time, the license and other investments remain an important asset.

    Canceling the project now helps to keep costs lower for customers while also meeting the state's energy needs through the use of cost-effective natural gas, existing nuclear plants and expanded renewable energy. And it gives us the opportunity to benefit from the lessons learned from other utilities pursuing new nuclear generation, which will ultimately benefit customers when the appropriate time comes to build a new nuclear plant.

    We are also continuing to evaluate options to extend the life of our existing nuclear fleet. Additional base load generation could potentially be needed for the Carolinas – dependent on the outcome of relicensing efforts for the existing Duke Energy nuclear fleet in the Carolinas.
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