Want to know how to lower your electric bill in North Carolina? Start with one question: is the house using more electricity, or is each kWh (kilowatt-hour, the unit on your bill) costing more? The answer tells you where to spend your time and money.
For one home, the fix is an aging heat pump or leaky ducts. For another, it's a better rate plan or a free Duke Energy program. For a third, solar really is the next step. Diagnose first, then pick the product.
How to Lower Your Electric Bill in North Carolina: Compare kWh First
Pull your latest bill and the same month from last year. Compare the kWh used, not just the dollars. Say last August was 1,150 kWh and this August was 1,550 kWh. That's about a 35% jump in usage.
If the bill rose by a similar share, look at the house first: heating and cooling, weather, who's home, new appliances, a pool or an EV. If usage stayed about the same but the bill still climbed, look at the price.
Know Which Duke Utility Serves Your Home
Most North Carolina homeowners have one of two Duke utilities. Duke Energy Carolinas serves about 2.3 million customers in Charlotte, Durham, the Triad and western North Carolina. Duke Energy Progress serves about 1.6 million in Raleigh, central and eastern North Carolina, and the Asheville region. North Carolina has no retail electric choice, so you can't switch suppliers.
Bills differ between the two. The Public Staff (the state's consumer advocate) tracks a typical bill for 1,000 kWh a month, before tax. As of September 1, 2026, that bill was $159.02 for Duke Energy Carolinas. For Duke Energy Progress, it was $176.85 in summer and $174.85 in winter.
What Changed on North Carolina Bills in 2026?
Two changes are already on bills this year. First, Duke Energy Carolinas base rates rose about 3.94% on January 1, 2026. That was the final step of an earlier multiyear rate plan, plus riders. Duke Energy Progress had no January base increase.
Second, the fuel charge (the part of the bill that covers fuel and purchased power) went up on June 1, 2026. At 1,000 kWh, that adds about $6.90 a month for Carolinas customers and $7.88 for Progress customers. Spread over 19 months, it recovers fuel costs that ran above forecast from September 2025 through February 2026. That includes a severe late-January cold snap, when Duke bought expensive power from neighbors.
Pending Rate Cases Could Change Bills in 2027
Both Duke utilities filed rate cases on November 20, 2025. Neither has been approved. The North Carolina Utilities Commission (NCUC) is expected to decide later in 2026. New rates would start January 1, 2027, with a second step in 2028.
Duke reached settlements with the Public Staff and other parties in July and August. For Duke Energy Carolinas, the settlement averages 3.7% a year across all customer classes. Residential is higher. Estimates put a 1,000-kWh bill about $9.39 a month higher in 2027 and $5.52 more in 2028. Duke first estimated +$17.22 a month in 2027.
For Duke Energy Progress, the settlement averages 3.4% a year across all customer classes. Estimates put a residential 1,000-kWh bill about $9.60 a month higher in 2027 and about $5.90 more in 2028. The NC Attorney General did not sign either settlement, and the NCUC has the final say.
Plan around today's rates. Treat future increases as a separate “what if,” not a promise.
The Carolinas and Progress Combination
The NCUC approved combining Duke Energy Carolinas and Duke Energy Progress on May 4, 2026. It takes effect January 1, 2027. Separate rate schedules continue at first, and rates would merge later through a future rate case. Duke projects about $2.3 billion in customer savings from 2027 to 2040. Be wary of any proposal that claims to know your future rates.
Look at Heating and Cooling First
North Carolina has hot, humid summers and real winter heating needs. That makes heating and cooling one of the largest loads you can control. Warning signs include an AC that runs nearly all day, weak airflow, uneven rooms and high humidity. Equipment that's 10 to 15 years old or more is another flag. If the system wastes thousands of kWh, everything else only treats the symptom.
Watch for Auxiliary Heat
Many North Carolina homes heat with a heat pump. When it can't keep up, it may switch on auxiliary heat. That's backup electric resistance heat, and it uses far more power. If your winter bill suddenly spikes, check the thermostat for “AUX HEAT” or “EM HEAT.” Do this before assuming Duke raised your rate.
Get a Free Home Energy House Call
Duke's Home Energy House Call is a free in-home energy assessment. Your home must have a heat pump, electric heat or central air. It can flag HVAC problems, duct leaks, thin insulation and water-heating waste before you spend thousands.
Fix Ducts and Insulation Before Buying Equipment
A high-efficiency heat pump connected to bad ductwork can still waste energy. Common problems include leaky ducts, crushed flex duct, ducts in a hot attic and thin attic insulation. Fixing them lowers the load, which can cut your bill without any new equipment.
Use Duke's Smart $aver Rebates
Duke's Smart $aver program pays rebates for qualifying upgrades in North Carolina. Current amounts include:
- Heat pumps: $350 to $900, depending on efficiency
- Heat-pump water heater: $500
- Attic insulation plus air sealing: $700
- Duct sealing: $350
- Variable-speed pool pump: $900
- Smart thermostat: $125 when bought with qualifying HVAC
Windows can qualify too. Confirm the current rebate before you sign.
Check Energy Saver NC Before You Buy
This is a big 2026 opportunity. Energy Saver North Carolina, run by NC DEQ, has been open in all 100 counties since February 10, 2026. It serves households at or below 150% of area median income. Households under 80% can get up to 100% of costs covered. Households from 80% to 150% can get up to 50%. You must use a participating contractor, and you shouldn't install anything first.
There are two tracks. HOMES pays up to $16,000 for whole-home efficiency projects. HEAR pays up to $14,000 total, with these caps:
- Heat pump: up to $8,000
- Electrical panel: up to $4,000
- Wiring: up to $2,000
- Heat-pump water heater: up to $1,750
- Insulation, air sealing and ventilation: up to $1,600
- Heat-pump dryer or electric stove: up to $840
The September 1 HEAR Change
Since September 1, 2026, HEAR no longer pays to switch from gas, propane or oil to electric equipment. Electric-to-electric upgrades still qualify. So replacing an old electric heat pump with an efficient one may still qualify. Replacing a gas furnace with a heat pump through HEAR does not. HOMES can still fund that kind of project if the whole-home plan saves at least 20%.
Earn Credits With Power Manager or EnergyWise Home
Duke runs smart-thermostat programs in both utilities. It's Power Manager in Duke Energy Carolinas and EnergyWise Home in Duke Energy Progress. You get a $150 credit when you enroll a smart thermostat, then $50 a year. In return, Duke can briefly adjust your thermostat during peak-demand events. It's easy money if your equipment qualifies.
Time-of-Use and the Flex Savings Option
Duke offers time-of-use plans, where the price depends on the time of day. On-peak hours are 6–9 p.m. on weekdays from May through September. From October through April, they're 6–9 a.m. on weekdays. Overnight hours are cheaper, and so are midday hours in winter.
The Flex Savings Option is a time-of-use plan with critical-peak pricing. That means up to about 20 “critical” days a year with higher prices during peak hours. It can work if you can shift EV charging, laundry or a pool pump. Don't ask, “Is time-of-use cheaper?” Ask, “Would it have been cheaper for my actual usage?”
Small Habits and Smarter Water Heating
Set the thermostat to the highest comfortable temperature on hot days. Replace dirty filters and keep the outdoor unit clear. An old electric water heater is another big load, and a heat-pump water heater uses much less. None of this rescues a failing heat pump, but it cuts waste.
Consider Solar After the Home Is Efficient
The old net metering rider closed to new systems in fall 2023. New Duke solar customers now choose between two paths. Residential Solar Choice requires a time-of-use rate with critical-peak pricing. It has a monthly minimum bill and some charges solar can't offset. Extra solar you send to the grid is credited monthly at a lower “avoided cost” value.
The Net Metering Bridge is a temporary path with yearly enrollment caps. Customers who get in can keep it for up to 15 years. It's scheduled to close to new customers at the end of 2026, and it can fill up sooner. Timing matters, but it's never a reason to buy the wrong system.
Why Efficiency Can Shrink Your Solar System
Here's a hypothetical. A home uses 19,000 kWh a year, and a solar proposal is sized to match. Then the owner replaces an old heat pump, seals the ducts and adds insulation. Usage falls to 15,000 kWh. That's 4,000 fewer kWh for the panels to cover, or about 21% less. The solar system could be roughly a fifth smaller, with fewer panels and a smaller loan.
Find the load before you buy the generation.
PowerPair and Home Batteries
Duke's PowerPair pilot pays up to $9,000 for new solar plus a battery. That's $0.36 per watt (AC) of solar up to 10 kW ($3,600), plus $400 per kWh of battery up to 13.5 kWh ($5,400). It requires a 10-year commitment and a Duke Trade Ally installer.
Capacity is tight. As of October 1, 2026, Duke Energy Progress was fully allocated with a waitlist. In Duke Energy Carolinas, the path that pairs the Bridge with Duke battery control was full. Some capacity remained on the Residential Solar Choice path. Confirm space, equipment and installer before you count the incentive.
A battery adds real cost, but it can keep a refrigerator, well pump or medical equipment running in an outage. Solar without a battery usually shuts off when the grid goes down.
Help for Income-Qualified Households
Duke's Weatherization program is free for households under 200% of the federal poverty level. It may include HVAC replacement up to $8,000. Neighborhood Energy Saver provides free energy-saving products in eligible neighborhoods.
For bill help, Duke's Customer Assistance Program gives about a $42 monthly credit to customers enrolled through LIEAP or Crisis Intervention. It's scheduled to end December 31, 2026, unless extended. Duke's Share the Light Fund and Helping Home Fund can also help.
Same Bill, Different Fix
Four North Carolina homes can have the same $300 bill and need four different answers:
- Home 1: The heat pump runs auxiliary heat constantly. Best first move: HVAC.
- Home 2: Thin insulation and leaky ducts. Best first move: efficiency.
- Home 3: An efficient, high-use home with a strong roof. Best first move may be solar.
- Home 4: Existing solar and frequent outages. Best next move may be a battery.
The Ashborn Approach
Before recommending anything, Ashborn Partners looks at your Duke utility, your usage history and your current rate. We review HVAC age, auxiliary heat, ductwork and insulation. We check Energy Saver NC, Duke programs, solar, batteries and future EV plans. Then we connect you with participating providers serving your area.
North Carolina has strong efficiency incentives in 2026. Check the house and the rebates before you size the solar system.
Duke rebates, PowerPair capacity, Energy Saver NC funding and assistance programs can change. Pending rate cases have not been approved. Savings examples are hypothetical. Verify current terms and eligibility before making changes.