Home charging cost
Charging a Polestar 4 in Arizona
What it actually costs to charge at home on Arizona's average residential electricity rate.
Home charging at a glance
Arizona rate
$0.13/kWh
Full charge
~$12.03
280–310 miles
Cost per mile
~3.7¢
Yearly home-charging cost
Based on the Polestar 4’s efficiency (3.5 mi/kWh) at Arizona's average residential rate. For comparison, a 30-mpg gas car at $3.50/gallon runs about 12¢/mile.
Home vs. public fast charging
Costs below are for a 10%–80% charge — the usable fast-charge window, about 66 kWh of the Polestar 4’s 94 kWh battery. That’s the range most owners actually use, since charging past 80% slows down sharply.
Home charging
~$8.42
10 → 80% · 3.7¢/mile
$0.13/kWh
Public fast charging
~$32.90
10 → 80% · 14.3¢/mile
~$0.50/kWh (DC fast)
Charging the Polestar 4 on public DC fast chargers costs roughly 3.9× more than at home — about $24.48 extra per 10→80% charge. Most owners charge at home and only use fast charging on road trips, so your real average lands much closer to the home number.
Level 1 vs. Level 2: can your outlet keep up?
The cost per kWh is the same either way. What changes is how fast the Polestar 4 recovers range while parked at home.
Level 1 · standard outlet
~4 mi/hour
120V · no installation needed
~10 hours to recover 40 miles of driving. A 10-hour overnight plug-in adds about 42 miles.
Level 2 · 240V circuit
~34 mi/hour
240V · uses the Polestar 4’s 9.6 kW onboard charger
~1 hour to recover 40 miles. A 10-hour overnight plug-in adds up to 336 miles.
If your daily driving stays under ~42 miles, a regular outlet may be all the Polestar 4 needs. Drive more than that, and Level 2 — or a workplace charger — becomes the difference between an EV that fits your life and one that doesn’t.
Does a Level 2 install pay for itself?
A home Level 2 setup — 240V circuit plus charger — typically runs $800–$1,800 installed. If the alternative is relying on public fast chargers, home charging the Polestar 4 in Arizona saves about $106.29/month at 12,000 miles a year.
At a mid-range install cost of $1,300, that’s a payback of roughly 12 months — and every month after that is pure savings.
Will a Polestar 4 actually work for your home in Arizona?
Cost is one piece. The bigger question is whether your outlet and daily driving keep you covered without relying on public chargers. Answer 5 quick questions for a clear, personalized answer.
Check your EV readiness →Frequently asked questions
How much does it cost to charge a Polestar 4 at home in Arizona?
At Arizona's average residential rate of $0.13 per kWh, a full charge of the Polestar 4's 94 kWh battery costs about $12.03 — roughly 3.7 cents per mile.
What is the yearly cost to charge a Polestar 4 in Arizona?
Driving 12,000 miles a year, home charging a Polestar 4 in Arizona costs about $439 per year.
Can you charge a Polestar 4 on a regular outlet?
Yes. On a standard 120V outlet (Level 1), the Polestar 4 recovers about 4 miles of range per hour — roughly 42 miles overnight. A 240V Level 2 circuit charges about 8x faster.
Is it cheaper to charge a Polestar 4 at home or at a public fast charger?
Home charging in Arizona costs about 3.7 cents per mile, while public DC fast charging runs about 14.3 cents per mile — roughly 3.9x more.
Polestar 4 charging cost in other locations
Other EVs in Arizona
Electricity rate is the EIA state residential average. Charging cost assumes home (Level 1 or Level 2) charging; efficiency and battery figures from the EV guide. Rates last reviewed Q2 2026.