Piedmont Natural Gas remains a cornerstone of energy infrastructure in the Southeast, though the landscape of its operations has seen its most significant transformation in recent memory. As of April 2026, the utility company continues to serve a massive footprint in North and South Carolina, while the ripples of the major Tennessee divestiture are still being felt by residential and commercial customers alike. Managing natural gas services in a shifting economic and regulatory environment requires a clear understanding of where your energy comes from, how much it costs, and what safety protocols protect your household.

The Landscape of Piedmont Natural Gas in 2026

Piedmont Natural Gas, a wholly-owned subsidiary of Duke Energy, has historically provided essential energy to over one million customers across a three-state territory. However, the energy market is rarely static. Following years of infrastructure modernization and a strategic pivot by Duke Energy to fund its massive $83 billion capital plan, the company finalized the sale of its Tennessee business unit to Spire Inc. earlier this year. This multibillion-dollar transaction has effectively reshaped the company's focus, centering its primary operations on the high-growth markets of North Carolina and South Carolina.

For residents in Charlotte, Greensboro, or Greenville, Piedmont remains the primary provider, maintaining its reputation for customer satisfaction and reliable distribution. For those in the Nashville area, the transition to Spire marks a new chapter in utility management. Regardless of the provider change, the core infrastructure—thousands of miles of transmission and distribution pipelines—continues to deliver the energy required for heating, cooking, and industrial power generation.

Navigating the Tennessee Transition to Spire

The sale of the Tennessee portion of Piedmont Natural Gas to Spire for approximately $2.48 billion was a strategic move designed to streamline utility operations. For the 205,000 customers in the Nashville area, the transition involves moving from one major utility giant to another. Spire, being one of the largest publicly traded natural gas companies in the country, has taken over the operation of distribution pipelines and the liquefied natural gas facility that previously fell under the Piedmont banner.

From a practical standpoint, customers in Tennessee may have noticed changes in billing platforms and customer service contact points. The transition was designed to be seamless, with Duke Energy employees primarily supporting the Tennessee business transitioning over to Spire to maintain operational continuity. It is important to note that while the logo on the bill has changed, the safety standards and the physical delivery of gas remain regulated by the Tennessee Public Utility Commission. This ensures that the transition does not compromise the quality of service or the response times for emergency calls.

Core Services in North and South Carolina

In the Carolinas, Piedmont Natural Gas continues to operate with a focus on expansion and infrastructure integrity. The service territory spans from the coastal plains to the Appalachian foothills, serving a diverse demographic of residential, commercial, and industrial users. The company provides more than just the fuel; it offers a comprehensive suite of services aimed at making natural gas a convenient and efficient choice for modern homes.

Residential Gas Connections

Converting a home to natural gas remains a popular option for homeowners seeking more reliable heating and cooking solutions. The "Gas Advantage" often cited by industry experts refers to the consistent heat output and the cost-effectiveness of gas compared to older electric resistance heating systems. Piedmont manages the entire process from the main line connection to the installation of the meter, ensuring that all local building codes and safety regulations are met.

Appliance Sales and Maintenance

Unlike some utilities that only manage the delivery of the resource, Piedmont Natural Gas is deeply involved in the appliance market. They sell, install, and repair a wide range of gas-powered equipment, including:

  • High-Efficiency Furnaces: Modern units that can reach over 95% efficiency, significantly reducing seasonal fuel consumption.
  • Tankless Water Heaters: Providing on-demand hot water and eliminating the standby energy losses associated with traditional tanks.
  • Gas Ranges and Cooktops: Favored by professional and home chefs for precise temperature control.
  • Outdoor Living Solutions: Including gas grills, fire pits, and pool heaters that extend the usability of outdoor spaces year-round.

Beyond installation, the company offers repair plans designed to protect homeowners from unexpected service costs. These plans often cover labor and parts for furnace or water heater repairs, which can be a significant financial burden if managed out-of-pocket.

Understanding 2026 Rates and Billing Trends

The cost of natural gas is a primary concern for every household, and the rates for Piedmont Natural Gas are subject to rigorous regulatory oversight. In North Carolina, the rates are determined by the North Carolina Utilities Commission (NCUC), and in South Carolina, by the Public Service Commission of South Carolina (PSCSC).

The Impact of the 2024-2025 Rate Case

Reflecting back on the rate cases settled in late 2024 and early 2025, customers have seen a gradual increase in their monthly bills. These increases were primarily driven by the need to recover costs for "pipeline integrity management" and significant capital investments in the gas distribution network. The settlement in North Carolina, for instance, allowed for a multi-year phased increase in retail revenues.

As we move through 2026, these revised rates are now fully integrated. While the base rate (the cost of the infrastructure and service) has seen an uptick, the actual cost of the gas commodity fluctuates based on global and national market conditions. Piedmont passes the cost of the gas itself directly to customers without a markup, meaning the company does not profit from the rising price of the fuel itself, only from its delivery and service.

Components of Your Bill

Reading a Piedmont Natural Gas bill involves understanding several distinct line items:

  1. Customer Charge: A fixed monthly fee that covers the cost of maintaining your account, meter reading, and billing, regardless of how much gas you use.
  2. Delivery Charge: The cost of transporting the gas through the pipeline system to your home.
  3. Gas Cost: The actual price of the natural gas commodity purchased on the open market.
  4. Rider Mechanisms: Specific charges for pipeline safety programs or energy efficiency initiatives authorized by state regulators.

For most residential users, seasonal fluctuations are the biggest challenge. Winter bills can be significantly higher due to heating demand. Piedmont offers a "Budget Billing" program that averages your annual gas costs over 12 months, providing a more predictable monthly expense and avoiding the "sticker shock" of a cold January.

Safety First: Protecting Your Home and Community

Safety is the most critical aspect of natural gas utility management. Because natural gas is naturally colorless and odorless, Piedmont adds a chemical called mercaptan, which gives the gas a distinct "rotten egg" smell. This is the first line of defense in identifying a potential leak.

If You Smell Gas

If you detect the odor of rotten eggs inside or outside your home, immediate action is necessary:

  • Leave the area immediately. Do not search for the leak yourself.
  • Do not use anything that could create a spark. This includes light switches, phones, flashlights, or appliances.
  • Extinguish all open flames. Do not smoke or light matches.
  • Call for help from a safe distance. Use a cell phone or a neighbor's phone to call the Piedmont Natural Gas emergency line or 911.

Call 811 Before You Dig

One of the most common causes of natural gas emergencies is accidental damage to underground pipelines during excavation. Whether you are planting a tree, building a deck, or installing a new fence, it is a legal requirement to call 811 at least two full business days before you start digging.

When you call 811, Piedmont and other utility companies will come to your property to mark the approximate location of underground lines with color-coded paint or flags. For natural gas, the color is always yellow. Digging without a locate request not only risks your safety but can lead to significant repair costs and legal penalties if a line is ruptured.

Energy Efficiency and the Path to Sustainability

In 2026, the push for cleaner energy has become a central part of Piedmont Natural Gas's corporate identity. While natural gas is a fossil fuel, it remains a cleaner alternative to coal and oil for many applications. To mitigate the environmental impact, the company has introduced several programs designed to promote efficiency and carbon offsetting.

GreenEdge and Carbon Offsets

The GreenEdge program allows customers to voluntarily contribute a small monthly amount toward the purchase of carbon offsets and renewable natural gas (RNG) credits. These contributions help fund projects that reduce greenhouse gas emissions, such as methane capture from landfills or agricultural waste. While this does not change the gas delivered to your home, it allows environmentally conscious consumers to neutralize a portion of their carbon footprint.

Rebates for Upgrades

To encourage homeowners to reduce their consumption, Piedmont offers various rebate programs for energy-efficient upgrades. These may include:

  • High-Efficiency Furnace Rebates: Cashback for replacing an old, inefficient unit with a model that meets Energy Star standards.
  • Smart Thermostat Incentives: Discounts or rebates for installing devices that optimize heating schedules based on occupancy.
  • Water Heater Rebates: Incentives for switching to high-efficiency tank or tankless models.

Participation in these programs not only lowers the initial cost of the equipment but also results in long-term savings on monthly energy bills. It is a practical way for the utility to manage overall demand on the system while providing direct financial benefits to its customers.

Customer Satisfaction and Reliability Rankings

Piedmont Natural Gas has consistently performed well in independent assessments of customer satisfaction. For several years, including 2023, 2024, and 2025, the company was ranked highly by J.D. Power in its U.S. Gas Utility Residential Customer Satisfaction Study for the South Large segment. These rankings are based on several factors, including safety and reliability, billing and payment, corporate citizenship, and customer service.

The high ranking reflects the company's commitment to maintaining a healthy, high-performing culture among its employees. From the technicians who respond to service calls to the representatives managing the phone lines, the emphasis is on providing excellent service to more than a million customers. Even during the complex divestiture of the Tennessee business, the focus on operational excellence remained a top priority, ensuring that the reputation of the Piedmont brand remained intact in its core markets.

The Future of Natural Gas in the Southeast

As we look further into the late 2020s, the role of natural gas is evolving. It is increasingly viewed as a "bridge fuel" that provides the reliable, baseload power necessary to support the transition to more intermittent renewable energy sources like wind and solar. Piedmont Natural Gas is heavily involved in modernization projects that include upgrading aging cast-iron and bare-steel pipes with modern, durable materials that reduce methane leakage.

Furthermore, the integration of digital technology into the gas grid—often referred to as the "Smart Grid for Gas"—allows for better monitoring of pressure and flow, enabling the company to identify and fix issues before they lead to service interruptions. This technological advancement ensures that natural gas remains a viable, safe, and efficient energy choice for the foreseeable future.

Practical Tips for Managing Your Gas Account

In the current digital-first era, managing your utility account is more streamlined than ever. Piedmont provides several tools to help you stay in control of your energy use:

  1. Mobile App and Online Portal: You can view your usage history, pay your bill, and schedule service appointments directly from your smartphone or computer.
  2. Usage Alerts: Sign up for notifications that tell you if your usage is significantly higher than usual, which could indicate a malfunction in an appliance or a need for better insulation.
  3. Paperless Billing: Reducing waste and ensuring your bill is never lost in the mail by opting for electronic delivery.
  4. Flexible Payment Options: For those experiencing financial hardship, Piedmont offers various assistance programs and payment plans to ensure that essential heating services are not interrupted.

Final Thoughts

Piedmont Natural Gas enters the second half of the decade as a more focused entity, having successfully navigated the sale of its Tennessee operations to Spire. While the company is smaller in geographic scope, its commitment to the North and South Carolina markets has arguably never been stronger. By investing in safety, infrastructure, and sustainable programs like GreenEdge, Piedmont is positioning itself to remain the trusted energy partner for millions of residents.

Whether you are a long-term customer looking to lower your bills through energy efficiency or a new homeowner curious about the safety of natural gas, staying informed is your best strategy. The transition of 2026 has set a new baseline for what a modern utility company looks like—responsive, technologically integrated, and increasingly focused on the future of energy in a changing world.