Reality Check · Greenville, SC
2026 GMC Sierra EV AT4 / Denali in Greenville, SC
Winter range, charging cost and how far it goes, worked out for Greenville's weather, grid and prices.
Greenville's winters are cool rather than cold: on a typical January day (44°F) a Sierra EV AT4 / Denali gets an estimated 386 miles, 6% under its 410-mile rating, about the same as in the coldest week (around January 10, when it averages 44°F). By May it's back to about 424. Charging at home at South Carolina's average rate (15.5¢/kWh) costs about $89 a month for 38 miles a day, about a third of the $271 a gas Sierra costs on the Lower Atlantic's gas. And Greenville's grid (SERC Virginia/Carolina), 23% cleaner than the US average, makes it 75% less CO₂ than gas.
Partly estimated. 2 of 5 temperature bands are from 117 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 410-mile rating. Each band switches to its own drives once it has 20 from 3 drivers.
October rangeEstimated
413mi
At Greenville's typical October day, 64°F · 35% highway
Winter lowEstimated
386mi
January, 44°F · lows near 34°F
Home chargingEstimated
$89/mo
7.7¢ a mile at 15.5¢/kWh. Gas Sierra: $271/mo
Greenville's grid
0.59lb CO₂/kWh
SERC Virginia/Carolina (EPA eGRID): 23% cleaner than the US, 75% less CO₂ than gas
Greenville, season by seasonEstimated
A Sierra EV AT4 / Denali's range on a full charge, averaged over each season's months (30-year normal temperatures), at 35% highway.
Winter Dec–Feb · 46°F
5% below its 410-mile rating · coldest week 386 mi
389mi
Spring Mar–May · 63°F
About its rating
412mi
Summer Jun–Aug · 80°F
4% above its rating
426mi
Fall Sep–Nov · 64°FNow
About its rating
413mi
A Sierra EV AT4 / Denali's range through a Greenville yearEstimated
Each month at Greenville's 30-year normal temperature, 35% highway. No day of the year averages below freezing.
How far it goes from Greenville, on real roadsEstimated
In October, from a full charge with 10% in reserve: about 186 mi out and back, 372 mi one way (January: 348 mi). Dots are DC fast chargers by network.
Fast charging around Greenville
PlugLog's map of every public charger. Tesla-only Superchargers aren't counted.
- 40DC fast chargers within 25 mi
- 0.7 mito the nearest
- ChargePoint379 in reach
- Tesla Supercharger245
- EVgo167
- EV Connect133
- Electrify America73
Road trips in October, about, by road: Nashville (332 mi) and Raleigh (276 mi) one way on a charge.
Questions Greenville drivers ask
How far can a Sierra EV AT4 / Denali go in a Greenville winter?
About 386 miles on a typical January day (44°F) and about the same in the coldest week of the year (around January 10, 44°F on average), estimated from real EV drives at those temperatures. That's 6% below its 410-mile rating, mostly from heating the cabin and the battery.
How much does it cost to charge a Sierra EV AT4 / Denali in Greenville?
About $89 a month at home for 38 miles a day, at South Carolina's average home electricity rate of 15.5¢/kWh: about 7.7¢ a mile. A gas Sierra on the Lower Atlantic's average gas ($3.86 a gallon) costs about $271 a month for the same driving.
Can I charge a Sierra EV AT4 / Denali on a regular 120 V outlet in Greenville?
Not at 38 miles a day: a 120 V outlet adds only about 32 miles in 12 hours on an average day (30 in the coldest week). Plan on 240 V, which fills it from 10% in about 17 hours.
Is it greener to drive electric on Greenville's grid?
Yes, more than most places. Greenville's grid (SERC Virginia/Carolina) is 23% cleaner than the US average, so a Sierra EV AT4 / Denali charged on it makes 75% less CO₂ than a gas Sierra.
Check it for your own address
Your street, your daily miles, any temperature on the knob.
Sierra EV AT4 / Denali Reality Check near Greenville
Sources: temperatures, 30-year normals (NOAA 1991–2020) at Greenville Dwtn Airport, SC; home electricity, EIA (South Carolina, July 2026); gas, EIA weekly (the Lower Atlantic); 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.