Portable AC Unit in Cary — $151/yr to Run (13.1¢/kWh)
Your portable ac unit in Cary costs about $13/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
$1.25
9.6 kWh/day
Monthly Cost
$12.55
96 kWh/mo
Annual Cost
$151
1,152 kWh/yr
Lifetime (8yr)
$1,205
energy only
Monthly Cost Breakdown in Cary
| Period | kWh | Cary Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 9.6 | $1.25 | $1.25 | +$0.01 |
| Weekly | 67.2 | $8.78 | $8.74 | +$0.05 |
| Monthly | 96.0 | $12.55 | $12.48 | +$0.07 |
| Quarterly | 288.0 | $37.64 | $37.44 | +$0.20 |
| Annual | 1152.0 | $150.57 | $149.76 | +$0.81 |
Customize Your Portable AC Unit Cost
Adjust usage hours and electricity rate to calculate your exact cost in Cary.
Daily
$1.25
Monthly
$12.55
Annual
$151
8-Year
$1,205
Energy Saving Tips for Portable AC Unit in Cary
- ✓Cary electricity rates are 1% above the national average — energy efficiency matters more here.
- ✓An ENERGY STAR Portable AC Unit in Cary saves ~$NaN/year compared to standard models.
- ✓A smart Portable AC Unit with scheduling optimization can save ~$15/year at Cary rates.
- ✓Cary's warm climate (avg 67.3°F) means higher cooling costs — consider ceiling fans to supplement.
- ✓Vent exhaust properly
- ✓Clean filter biweekly
ENERGY STAR Savings: Upgrading to an ENERGY STAR Portable AC Unit in Cary saves approximately $NaN/year at local rates — $NaN 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
Portable AC Unit Cost in Other North Carolina Cities
| City | Rate | Annual Cost | vs Cary |
|---|---|---|---|
| Cary (current) | 13.1¢ | $151 | — |
| Charlotte | 13.3¢ | $154 | +$3 |
| Raleigh | 12.7¢ | $147 | $-4 |
| Greensboro | 13.6¢ | $157 | +$6 |
| Durham | 13.3¢ | $153 | +$2 |
| Winston-Salem | 14.0¢ | $161 | +$10 |
| Fayetteville | 12.7¢ | $147 | $-4 |
| Wilmington | 14.1¢ | $162 | +$11 |
| High Point | 13.5¢ | $156 | +$5 |
Portable AC Unit Energy Cost FAQ — Cary, NC
Understanding Portable AC Unit 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 moderate-draw appliance like the Portable AC Unit (1,200W) at Cary's rate of 13.1¢/kWh costs approximately $151 per year — $1 more than the national average of $150.
Cary rates are 1% above the national average — a modest premium that adds $1 per year to Portable AC Unit operating costs. Over the appliance's 8-year lifespan, that's $6 in cumulative extra spending versus the national average.
With a cost of living index of 102, Cary is near the national median. The Portable AC Unit's monthly cost of $12.55 represents a typical share of the average Cary electric bill of $133/month. Upgrading to an ENERGY STAR Portable AC Unit can cut energy use by up to undefined%, saving approximately $NaN per year at Cary rates.
Cary's moderate climate (avg 67.3°F) helps keep seasonal energy cost swings manageable for most appliances. A Portable AC Unit produces approximately 0.83 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 a Portable AC Unit in Cary, NC?
At Cary's average electricity rate of 13.1¢/kWh, a Portable AC Unit costs approximately $151 per year to run. That's about $12.55 per month with typical usage of 8 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 a Portable AC Unit use per year?
A Portable AC Unit uses approximately 1,200 watts and consumes about 1,152 kWh per year with typical usage of 8 hours/day for 120 days/year.
Is a Portable AC Unit expensive to run in Cary?
Compared to the national average cost of $150/year, running a Portable AC Unit in Cary costs $1 more per year due to higher local electricity rates.
How can I reduce my Portable AC Unit energy cost in Cary?
To reduce Portable AC Unit costs in Cary: Vent exhaust properly. Clean filter biweekly. Upgrading to an ENERGY STAR model saves up to undefined% on energy costs. Also check with Duke Energy Carolinas for local energy efficiency rebates and programs.