Portable AC Unit in Knoxville — $138/yr to Run (12.0¢/kWh)
Your portable ac unit in Knoxville costs about $12/month at 12.0¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
Knoxville, TN Electricity Rate
12.0¢/kWh
Utility: Nashville Electric Service
-8% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$1.15
9.6 kWh/day
Monthly Cost
$11.52
96 kWh/mo
Annual Cost
$138
1,152 kWh/yr
Lifetime (8yr)
$1,106
energy only
Monthly Cost Breakdown in Knoxville
| Period | kWh | Knoxville Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 9.6 | $1.15 | $1.25 | $-0.10 |
| Weekly | 67.2 | $8.06 | $8.74 | $-0.67 |
| Monthly | 96.0 | $11.52 | $12.48 | $-0.96 |
| Quarterly | 288.0 | $34.56 | $37.44 | $-2.88 |
| Annual | 1152.0 | $138.24 | $149.76 | $-11.52 |
Customize Your Portable AC Unit Cost
Adjust usage hours and electricity rate to calculate your exact cost in Knoxville.
Daily
$1.15
Monthly
$11.52
Annual
$138
8-Year
$1,106
Energy Saving Tips for Portable AC Unit in Knoxville
- ✓Knoxville has below-average electricity rates, but saving energy still reduces your carbon footprint.
- ✓An ENERGY STAR Portable AC Unit in Knoxville saves ~$NaN/year compared to standard models.
- ✓A smart Portable AC Unit with scheduling optimization can save ~$14/year at Knoxville rates.
- ✓Knoxville's warm climate (avg 62.8°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 Knoxville saves approximately $NaN/year at local rates — $NaN over the appliance lifetime.
Highest-Cost Appliances in Knoxville, TN
See which appliances cost the most to run at Knoxville's 12.0¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$1,555/yr
$129.60/mo
Electric Furnace
HVAC · 10,000W
$1,080/yr
$90.00/mo
Electric Tankless Water Heater
Water Heating · 18,000W
$788/yr
$65.70/mo
EV Charger (Level 2)
Garage · 7,200W
$778/yr
$64.80/mo
Boiler (Electric)
HVAC · 6,000W
$648/yr
$54.00/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$591/yr
$49.27/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$591/yr
$49.27/mo
Heat Pump
HVAC · 2,400W
$461/yr
$38.40/mo
Portable AC Unit Cost in Other Tennessee Cities
| City | Rate | Annual Cost | vs Knoxville |
|---|---|---|---|
| Knoxville (current) | 12.0¢ | $138 | — |
| Nashville | 12.0¢ | $138 | $-0 |
| Memphis | 13.1¢ | $151 | +$13 |
| Chattanooga | 12.3¢ | $142 | +$4 |
| Clarksville | 11.3¢ | $131 | $-8 |
| Murfreesboro | 12.7¢ | $146 | +$8 |
| Franklin | 12.5¢ | $144 | +$6 |
| Johnson City | 11.9¢ | $137 | $-1 |
| Jackson | 9.4¢ | $109 | $-29 |
Portable AC Unit Energy Cost FAQ — Knoxville, TN
Understanding Portable AC Unit Energy Costs in Knoxville, TN
Knoxville is a mid-sized Tennessee city where residential electricity rates from Nashville Electric Service are shaped by regional energy supply and local demand patterns. Running a moderate-draw appliance like the Portable AC Unit (1,200W) at Knoxville's rate of 12.0¢/kWh costs approximately $138 per year — $12 less than the national average of $150.
Rates in Knoxville are close to the national average, so the Portable AC Unit's annual cost of $138 is broadly representative of what most US households pay. Over the 8-year expected lifespan, total energy cost reaches $1,106.
With a cost of living index of 97, Knoxville is near the national median. The Portable AC Unit's monthly cost of $11.52 represents a typical share of the average Knoxville electric bill of $161/month. Upgrading to an ENERGY STAR Portable AC Unit can cut energy use by up to undefined%, saving approximately $NaN per year at Knoxville rates.
Knoxville's moderate climate (avg 62.8°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. Knoxville 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 Knoxville.
Compare All Energy Costs in Knoxville
See energy costs for 178+ household appliances at Knoxville's local electricity rate.
Frequently Asked Questions
How much does it cost to run a Portable AC Unit in Knoxville, TN?
At Knoxville's average electricity rate of 12.0¢/kWh, a Portable AC Unit costs approximately $138 per year to run. That's about $11.52 per month with typical usage of 8 hours per day.
What is the electricity rate in Knoxville, TN?
The average residential electricity rate in Knoxville, TN is 12.0¢/kWh, which is 8% below the national average of 13.0¢/kWh. The primary utility provider is Nashville Electric Service.
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 Knoxville?
Compared to the national average cost of $150/year, running a Portable AC Unit in Knoxville costs $12 less per year due to lower local electricity rates.
How can I reduce my Portable AC Unit energy cost in Knoxville?
To reduce Portable AC Unit costs in Knoxville: Vent exhaust properly. Clean filter biweekly. Upgrading to an ENERGY STAR model saves up to undefined% on energy costs. Also check with Nashville Electric Service for local energy efficiency rebates and programs.