Attic Fan in Cary — $22/yr to Run (13.1¢/kWh)
Your attic fan in Cary costs about $2/month at 13.1¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
Cary, NC Electricity Rate
13.1¢/kWh
Utility: Duke Energy Carolinas
+1% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$0.18
1.4 kWh/day
Monthly Cost
$1.83
14 kWh/mo
Annual Cost
$22
168 kWh/yr
Lifetime (15yr)
$329
energy only
Monthly Cost Breakdown in Cary
| Period | kWh | Cary Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 1.4 | $0.18 | $0.18 | +$0.00 |
| Weekly | 9.8 | $1.28 | $1.27 | +$0.01 |
| Monthly | 14.0 | $1.83 | $1.82 | +$0.01 |
| Quarterly | 42.0 | $5.49 | $5.46 | +$0.03 |
| Annual | 168.0 | $21.96 | $21.84 | +$0.12 |
Customize Your Attic Fan Cost
Adjust usage hours and electricity rate to calculate your exact cost in Cary.
Daily
$0.18
Monthly
$1.83
Annual
$22
15-Year
$329
Energy Saving Tips for Attic Fan in Cary
- ✓Cary electricity rates are 1% above the national average — energy efficiency matters more here.
- ✓An ENERGY STAR Attic Fan in Cary saves ~$3/year compared to standard models.
- ✓A smart Attic Fan with scheduling optimization can save ~$4/year at Cary rates.
- ✓Cary's warm climate (avg 67.3°F) means higher cooling costs — consider ceiling fans to supplement.
- ✓Install thermostat to auto-activate above 100F
- ✓Ensure adequate soffit vents
ENERGY STAR Savings: Upgrading to an ENERGY STAR Attic Fan in Cary saves approximately $3/year at local rates — $49 over the appliance lifetime.
Highest-Cost Appliances in Cary, NC
See which appliances cost the most to run at Cary's 13.1¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$1,694/yr
$141.16/mo
Electric Furnace
HVAC · 10,000W
$1,176/yr
$98.03/mo
Electric Tankless Water Heater
Water Heating · 18,000W
$859/yr
$71.56/mo
EV Charger (Level 2)
Garage · 7,200W
$847/yr
$70.58/mo
Boiler (Electric)
HVAC · 6,000W
$706/yr
$58.82/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$644/yr
$53.67/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$644/yr
$53.67/mo
Heat Pump
HVAC · 2,400W
$502/yr
$41.82/mo
Attic Fan Cost in Other North Carolina Cities
| City | Rate | Annual Cost | vs Cary |
|---|---|---|---|
| Cary (current) | 13.1¢ | $22 | — |
| Charlotte | 13.3¢ | $22 | +$0 |
| Raleigh | 12.7¢ | $21 | $-1 |
| Greensboro | 13.6¢ | $23 | +$1 |
| Durham | 13.3¢ | $22 | +$0 |
| Winston-Salem | 14.0¢ | $23 | +$2 |
| Fayetteville | 12.7¢ | $21 | $-1 |
| Wilmington | 14.1¢ | $24 | +$2 |
| High Point | 13.5¢ | $23 | +$1 |
Methodology & Energy Data Sources for Cary
How we calculate attic fan energy costs in Cary, NC: Cost estimates use the standard formula: Annual Cost = (Wattage ÷ 1000) × Hours per Day × Days per Year × Local kWh Rate. We model regional electricity rate variation using EIA monthly data, which captures rate differences between investor-owned utilities, municipal providers, and rural electric cooperatives.
- Appliance wattage sourced from ENERGY STAR product database, manufacturer spec sheets, and DOE residential appliance test data.
- Local kWh rate for Cary reflects North Carolina averages from EIA Form 861 (utility sales data). Rates vary by season (typically 10-20% summer premium) and time-of-use in many North Carolina utilities.
- Usage patterns derived from RECS (Residential Energy Consumption Survey), EIA's official survey of US household energy use.
- Carbon footprint calculated using EPA eGRID emissions factors specific to your regional grid mix in North Carolina.
Authoritative US energy data sources:
- EIA Electric Power Monthly — official US electricity rate data by state
- EIA Residential Energy Consumption Survey (RECS) — household appliance usage patterns
- ENERGY STAR Product Finder — efficiency ratings for attic fans
- DOE Energy Saver — Electricity — official tips and appliance comparison
- EPA eGRID — Regional Emissions — carbon intensity by grid region
- EIA State Energy Profiles — North Carolina — generation mix, prices, and consumption
Disclaimer: Energy costs are estimates based on average appliance usage and North Carolina state-level kWh rates. Your actual costs depend on your specific utility provider, rate plan (flat, time-of-use, demand), local fees, taxes, and renewable energy credits. Check your utility bill for exact rates. For energy efficiency upgrades, consult your local utility's rebate programs and federal tax credits via ENERGY STAR Federal Tax Credits.
Reviewed by Brazora Monk · Last updated 2026 · EIA data current as of latest monthly release
Find Your Utility, Rate Plan & Incentives in Cary
The North Carolina state-average kWh rate shown above is a baseline — your actual cost depends on your specific utility provider, rate plan, and time-of-use schedule. Plus you may be missing rebates that pay for ENERGY STAR replacements:
Each utility has its own rate plans (flat, TOU, demand):
- • EIA — Find Your Utility (by ZIP)
- • EIA North Carolina State Profile
- • Time-of-use can save 20-40% if you shift heavy use to off-peak
Inflation Reduction Act provides ongoing credits:
- • ENERGY STAR Federal Tax Credits
- • 30% on solar/battery storage through 2032
- • Up to $2,000 heat pump credit annually
- • DOE — Federal Rebate Programs
State + utility-specific rebates stack with federal:
- • DSIRE — North Carolina Incentive Database
- • DOE State Energy Program
- • Many utilities offer $50-500 rebates on ENERGY STAR appliances
Replace efficient = save 25-50% kWh:
NABCEP-certified installers for solar/battery: NABCEP Certified Professionals Directory. Required for many state incentives.
Attic Fan Energy Cost FAQ — Cary, NC
Understanding Attic Fan Energy Costs in Cary, NC
Cary is a mid-sized North Carolina city where residential electricity rates from Duke Energy Carolinas are shaped by regional energy supply and local demand patterns. Running a low-draw appliance like the Attic Fan (350W) at Cary's rate of 13.1¢/kWh costs approximately $22 per year — $0 more than the national average of $22.
Cary rates are 1% above the national average — a modest premium that adds $0 per year to Attic Fan operating costs. Over the appliance's 15-year lifespan, that's $2 in cumulative extra spending versus the national average.
With a cost of living index of 102, Cary is near the national median. The Attic Fan's monthly cost of $1.83 represents a typical share of the average Cary electric bill of $133/month. Upgrading to an ENERGY STAR Attic Fan can cut energy use by up to 15%, saving approximately $3 per year at Cary rates.
Cary's moderate climate (avg 67.3°F) helps keep seasonal energy cost swings manageable for most appliances. A Attic Fan produces approximately 0.12 tons of CO2 annually at typical usage. Cary residents can reduce this footprint by choosing an ENERGY STAR certified unit, optimizing usage patterns, or investing in solar — see our solar savings calculator for Cary.
Compare All Energy Costs in Cary
See energy costs for 178+ household appliances at Cary's local electricity rate.
Frequently Asked Questions
How much does it cost to run an Attic Fan in Cary, NC?
At Cary's average electricity rate of 13.1¢/kWh, an Attic Fan costs approximately $22 per year to run. That's about $1.83 per month with typical usage of 4 hours per day.
What is the electricity rate in Cary, NC?
The average residential electricity rate in Cary, NC is 13.1¢/kWh, which is 1% above the national average of 13.0¢/kWh. The primary utility provider is Duke Energy Carolinas.
How much electricity does an Attic Fan use per year?
A Attic Fan uses approximately 350 watts and consumes about 168 kWh per year with typical usage of 4 hours/day for 120 days/year.
Is an Attic Fan expensive to run in Cary?
Compared to the national average cost of $22/year, running an Attic Fan in Cary costs $0 more per year due to higher local electricity rates.
How can I reduce my Attic Fan energy cost in Cary?
To reduce Attic Fan costs in Cary: Install thermostat to auto-activate above 100F. Ensure adequate soffit vents. Upgrading to an ENERGY STAR model saves up to 15% on energy costs. Also check with Duke Energy Carolinas for local energy efficiency rebates and programs.