Slate Reality Check · Honolulu, HI
Slate truck in Honolulu, HI
Winter range, charging cost and how far it goes, worked out for Honolulu's weather, grid and prices.
Winter barely touches range in Honolulu: at a typical January's 74°F, a Slate gets an estimated 204 miles on a charge, about its 205-mile rating. Power is pricey in Hawaii (48.0¢/kWh), so charging at home costs about $171 a month for 38 miles a day, still less than the $223 a gas Ford Maverick costs on the West Coast's gas. Honolulu's grid (HICC Oahu) is 94% dirtier than the US average, but charging on it still makes 39% less CO₂ than gas.
Estimated. Almost no one's driving a Slate yet, so these come from 1,548 real drives in other EVs at each temperature (and Recurrent's winter study below freezing), applied to the Slate's rating. They switch to real Slate drives as owners log them.
October rangeEstimated
204mi
At Honolulu's typical October day, 80°F · 35% highway
Winter lowEstimated
204mi
January, 74°F · lows near 67°F
Home chargingEstimated
$171/mo
14.8¢ a mile at 48.0¢/kWh. Gas Ford Maverick: $223/mo
Honolulu's grid
1.49lb CO₂/kWh
HICC Oahu (EPA eGRID): 94% dirtier than the US, 39% less CO₂ than gas
Honolulu, season by seasonEstimated
A Slate's range on a full charge, averaged over each season's months (30-year normal temperatures), at 35% highway.
Winter Dec–Feb · 74°F
About its rating · coldest week 204 mi
204mi
Spring Mar–May · 77°F
About its rating
204mi
Summer Jun–Aug · 81°F
About its rating
205mi
Fall Sep–Nov · 80°FNow
About its rating
204mi
A Slate's range through a Honolulu yearEstimated
Each month at Honolulu's 30-year normal temperature, 35% highway. No day of the year averages below freezing.
How far it goes from Honolulu, on real roadsEstimated
In October, from a full charge with 10% in reserve: about 92 mi out and back, 184 mi one way (January: 184 mi). Dots are DC fast chargers by network.
Fast charging around Honolulu
PlugLog's map of every public charger. Tesla-only Superchargers aren't counted.
- 42DC fast chargers within 25 mi
- 1.5 mito the nearest
- OpConnect19 in reach
- Shell Recharge11
- Electrify America3
- EV Connect2
- Tesla Supercharger2
Questions Honolulu drivers ask
How far can a Slate go in a Honolulu winter?
Honolulu's winters are mild: about 204 miles on a typical January day (74°F) and about the same in the coldest week (around January 15, 74°F), estimated from real EV drives at those temperatures. That's about its 205-mile rating.
How much does it cost to charge a Slate in Honolulu?
About $171 a month at home for 38 miles a day, at Hawaii's average home electricity rate of 48.0¢/kWh: about 14.8¢ a mile. A gas Ford Maverick on the West Coast's average gas ($5.01 a gallon) costs about $223 a month for the same driving.
Can I charge a Slate on a regular 120 V outlet in Honolulu?
At 38 miles a day, yes, all year: a 120 V outlet adds about 50 miles in 12 hours even in Honolulu's coldest week, and about 50 on an average day.
Is it greener to drive electric on Honolulu's grid?
Yes. Honolulu's grid (HICC Oahu) is 94% dirtier than the US average, but a Slate charged on it still makes 39% less CO₂ than a gas Ford Maverick.
Check it for your own address
Your street, your daily miles, any temperature on the knob.
Slate Reality Check near Honolulu
Sources: temperatures, 30-year normals (NOAA 1991–2020) at Honolulu International Airport, HI; home electricity, EIA (Hawaii, July 2026); gas, EIA weekly (the West Coast); 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.