Reality Check · Knoxville, TN
2025 GMC Sierra EV in Knoxville, TN
Winter range, charging cost and how far it goes, worked out for Knoxville's weather, grid and prices.
Winter barely touches range in Knoxville: at a typical January's 39°F, a Sierra EV gets an estimated 353 miles on a charge, within 9% of its 390-mile rating. Charging at home at Tennessee's average rate (13.7¢/kWh) costs about $88 a month for 38 miles a day, about a third of the $300 a gas Sierra costs on the Midwest's gas. Knoxville's grid (SERC Tennessee Valley) is 17% dirtier than the US average, but charging on it still makes 59% less CO₂ than gas.
Partly estimated. 2 of 5 temperature bands are from 116 real drives of this model; the rest come from 1,548 real drives in EVs at each temperature (and Recurrent's winter study below freezing), applied to its 390-mile rating. Each band switches to its own drives once it has 20 from 3 drivers.
October rangeEstimated
384mi
At Knoxville's typical October day, 60°F · 35% highway
Winter lowEstimated
352mi
January, 39°F · lows near 30°F
Home chargingEstimated
$88/mo
7.6¢ a mile at 13.7¢/kWh. Gas Sierra: $300/mo
Knoxville's grid
0.90lb CO₂/kWh
SERC Tennessee Valley (EPA eGRID): 17% dirtier than the US, 59% less CO₂ than gas
Knoxville, season by seasonEstimated
A Sierra EV's range on a full charge, averaged over each season's months (30-year normal temperatures), at 35% highway.
Winter Dec–Feb · 41°F
7% below its 390-mile rating · coldest week 352 mi
361mi
Spring Mar–May · 59°F
3% below its rating
378mi
Summer Jun–Aug · 77°F
8% below its rating
358mi
Fall Sep–Nov · 60°FNow
4% below its rating
374mi
A Sierra EV's range through a Knoxville yearEstimated
Each month at Knoxville's 30-year normal temperature, 35% highway. No day of the year averages below freezing.
How far it goes from Knoxville, on real roadsEstimated
In October, from a full charge with 10% in reserve: about 173 mi out and back, 346 mi one way (January: 318 mi). Dots are DC fast chargers by network.
Fast charging around Knoxville
PlugLog's map of every public charger. Tesla-only Superchargers aren't counted.
- 19DC fast chargers within 25 mi
- 1.6 mito the nearest
- ChargePoint373 in reach
- Tesla Supercharger218
- EVgo172
- EV Connect149
- Electrify America72
Road trips in October, about, by road: Birmingham (292 mi) and Greensboro (288 mi) one way on a charge.
Questions Knoxville drivers ask
How far can a Sierra EV go in a Knoxville winter?
Knoxville's winters are mild: about 353 miles on a typical January day (39°F) and about the same in the coldest week (around January 10, 39°F), estimated from real EV drives at those temperatures. That's within 10% of its 390-mile rating.
How much does it cost to charge a Sierra EV in Knoxville?
About $88 a month at home for 38 miles a day, at Tennessee's average home electricity rate of 13.7¢/kWh: about 7.6¢ a mile. A gas Sierra on the Midwest's average gas ($4.14 a gallon) costs about $300 a month for the same driving.
Can I charge a Sierra EV on a regular 120 V outlet in Knoxville?
Not at 38 miles a day: a 120 V outlet adds only about 29 miles in 12 hours on an average day (27 in the coldest week). Plan on 240 V, which fills it from 10% in about 10 hours.
Is it greener to drive electric on Knoxville's grid?
Yes. Knoxville's grid (SERC Tennessee Valley) is 17% dirtier than the US average, but a Sierra EV charged on it still makes 59% less CO₂ than a gas Sierra.
Check it for your own address
Your street, your daily miles, any temperature on the knob.
Sierra EV Reality Check near Knoxville
Sources: temperatures, 30-year normals (NOAA 1991–2020) at Knoxville Mcghee Tyson Airport, TN; home electricity, EIA (Tennessee, July 2026); gas, EIA weekly (the Midwest); grid CO₂, EPA eGRID 2023; cold-weather range, PlugLog's real drives and Recurrent's winter study (Nov 2025); chargers, Open Charge Map and PlugLog. Updated Oct 22, 2026.