The fastest ways to lower your first Duke Energy bills in Charlotte cost little or nothing: book Duke’s free Home Energy Check, set your thermostat back when you’re asleep or out, and seal the drafts around doors and windows. If you have an eligible smart thermostat, Duke’s Power Manager program also pays bill credits. This guide covers each step for renters and homeowners, with links to the official pages.
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If you’ve just finished setting up Duke Energy and other utilities, this is the next step. Older homes and newer apartments behave differently, and our guide to Charlotte neighborhoods gives a feel for the housing mix. Everything below was checked on official Duke Energy and U.S. Department of Energy pages on October 12, 2026.
Quick answer: 3 things to do in your first month
Start with the free, low-effort moves. They work whether you rent or own.
- Book a free Home Energy Check with Duke Energy. There’s no cost, per Duke Energy.
- Set your thermostat back 7–10°F for 8 hours a day. The U.S. Department of Energy says this can save as much as 10% a year on heating and cooling.
- Seal air leaks with caulk and weatherstripping. DOE says sealing uncontrolled leaks can save 10%–20% on heating and cooling bills.
Duke Energy’s free Home Energy Check
This is the best place to begin. According to Duke Energy, the check is free and “there is zero cost to you.”
Three ways to do it
| Format | Time |
|---|---|
| Self-guided online check | About 5–10 minutes |
| Phone-assisted audit with an advisor | 15–30 minutes |
| In-home visit with an advisor | 60–90 minutes |
Advisor-led audits, by phone or in person, are scheduled online. If you’re short on time during the move, the online check is a fine start.
Renters and apartments qualify
Duke says the check is open to all residential customers who haven’t had one in the past two years, including renters and apartment residents. You don’t need to own your home.
If you’re in a temporary place while you look for something longer term, our guide to short-term and furnished rentals covers that stage of the move.
What you get
After the check, Duke says you receive a customized energy-use report, a free energy efficiency kit and information on rebate offers. Duke’s News Center also notes that completing the check is required before home improvement rebates.
Phone numbers to book
- Phone-assisted audit: 877-364-9004
- In-home visit or questions: 877-230-6609
Both numbers are listed on the Home Energy Check page.
Get paid to share your smart thermostat: Power Manager
Power Manager lets Duke make small, brief adjustments to your smart thermostat on high-demand days. In return, you get bill credits. Details come from Duke’s official enrollment site, the Power Manager smart thermostat FAQ.
Who’s eligible
- A Duke Energy residential electric customer in North Carolina or South Carolina, with service in your name.
- An eligible internet-connected smart thermostat that controls central air conditioning and electric heating.
- Agreement to brief thermostat adjustments on high-demand days.
Eligible brands include ecobee, Google Nest, Honeywell Home, Sensi and Amazon Smart Thermostat. Check the FAQ’s table for exact models before you buy.
One catch: the FAQ notes that Nest and ecobee thermostats may be rejected if your electric heat isn’t a heat pump. Confirm your system type first.
The credits
According to the FAQ, you get a one-time bill credit after enrolling, one per household, within 2 billing cycles. You then get another bill credit each enrollment anniversary while you stay enrolled and participate.
We’re not quoting the credit amounts here, since program offers can change. The Power Manager FAQ lists the current figures.
What an event feels like
During an event, the thermostat is adjusted up to 4 degrees, typically for under four hours. Summer events run April 1 to October 31, and winter events November 1 to March 31.
You can opt out of any event from the thermostat, the app or the web. Program support is at 888-463-5022.
If you rent, get your landlord’s permission before swapping out a thermostat. It’s a quick conversation that avoids a problem at move-out.
If you’re shopping, a smart thermostat from an eligible brand can handle the setback schedule for you. Match the exact model against Duke’s FAQ before ordering.
Homeowners: Smart $aver rebates through a contractor
If you own your home and plan bigger upgrades, Duke’s Smart $aver home improvement rebates are worth a look. You pick a participating contractor, and the contractor submits the rebate application for you.
The rebate arrives as a physical or digital Mastercard. Covered categories include:
- HVAC
- Heat pump water heaters
- Insulation
- Air sealing
- Pool pumps
Rebate amounts vary, and we aren’t quoting them here. Check the Smart $aver page for current offers, and remember that the Home Energy Check comes first.
DIY savings that cost almost nothing
These steps are renter-friendly and take an afternoon at most. They come from the U.S. Department of Energy’s Energy Saver Guide (PDF).
Thermostat setback
Setting the thermostat back 7–10°F for 8 hours a day can save as much as 10% a year on heating and cooling, per DOE. Overnight or while you’re at work are the easy windows.
For winter, DOE’s Energy Saver bulletin suggests starting around 68–70°F when you’re home.
If your home has a heat pump, DOE advises against setbacks unless you have a smart or programmable thermostat designed for heat pumps.
Find and seal air leaks
DOE says sealing uncontrolled air leaks can save 10%–20% on heating and cooling bills. Check these spots:
- Walls and ceilings
- Windows and doors
- Lighting and plumbing fixtures
- Switches and outlets
Use the right material for the gap. Caulk is for gaps between parts that don’t move, such as around window and door frames. Weatherstripping is for parts that do move, like doors and windows that open. DOE’s winter savings article calls both low-cost ways to reduce air leaks.
For renters, self-adhesive weatherstripping and a door sweep are easy to fit and easy to remove later.
Cut phantom loads with smart plugs
Chargers, TVs and game consoles keep drawing some power when they’re “off.” Smart plugs let you schedule them to shut off fully overnight or while you’re away.
We don’t have an official savings figure for this, so treat it as a habit, not a promise. A smart plug 4-pack covers the main spots in most apartments.
Before your first Charlotte winter: a quick checklist
- Book a free Duke Home Energy Check (online, phone or in-home).
- Program a 7–10°F setback for 8 hours a day, unless you have a heat pump without a compatible thermostat.
- Walk the house for drafts around windows, doors, outlets and fixtures.
- Caulk the fixed gaps and weatherstrip the moving parts.
- If you have an eligible smart thermostat, look at Power Manager before winter events begin on November 1.
Winter can also bring ice and outages. Our guide to severe weather and power outages covers that side of preparing.
FAQ
Is the Duke Energy Home Energy Check free?
Yes. Duke Energy says there is zero cost to you.
Can renters get one?
Yes. It’s open to all residential customers who haven’t had a check in the past two years, including renters and apartment residents.
How does the Power Manager credit work?
You get a one-time enrollment credit and then an anniversary credit each year you stay enrolled and participate. Check the Power Manager FAQ for the current amounts.
What thermostat setting saves the most?
DOE says a 7–10°F setback for 8 hours a day can save as much as 10% a year on heating and cooling. In winter, it suggests about 68–70°F when you’re home.
Does weatherstripping really help?
DOE says sealing uncontrolled air leaks can save 10%–20% on heating and cooling bills, and weatherstripping is one of the low-cost ways to do it.
Still settling in? Our newcomer checklist keeps the rest of your to-do list in one place.
Sources
- Duke Energy: Home Energy Check
- Duke Energy Power Manager: Smart Thermostat FAQ
- Duke Energy: Home Improvement Rebates (Smart $aver)
- Duke Energy News Center: Energy-saving tips for Carolinas customers
- U.S. Department of Energy: Energy Saver Guide (PDF)
- U.S. Department of Energy: Adjust Your Thermostat
- U.S. Department of Energy: Six Simple Steps to Save Energy and Money This Winter
Disclosure: Some links on this page are affiliate links. If you buy through them, we may earn a commission at no extra cost to you. As an Amazon Associate we earn from qualifying purchases.