Home charging cost
Charging a Lexus NX 450h+ in Washington
What it actually costs at home on Washington's average residential rate — $0.15/kWh, updated AUG 2026.
What charging actually costs
Cost per mile · electric
~6.0¢
vs. ~10.9¢ in gas mode (36 mpg)
Full charge (0 → 100%)
~$2.72
18.1 kWh · ~37 electric miles
Yearly · 12,000 electric miles
$720
if your days fit the 37-mi range · ≈ $60/month
What your typical day costs
To replace a 40-mile day
$2.55/day
$929/year
37 electric mi (14.8 kWh) + 3 gas mi · about 6.4¢ per mile blended
Can a regular outlet put those 37 electric miles back overnight? For most plug-in hybrids it’s close — it depends on your outlet and your parking.
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Cost per mile: electric vs. gas mode
Plugging in vs. letting it run on gas
A plug-in hybrid gives you the choice every day. Here’s the same 40-mile day priced both ways — charged at home, or never plugged in. Drag the slider above to set your day.
Plugged in at home
~$2.55
37 mi electric + 3 mi gas · 6.4¢/mile
$0.15/kWh
Source: U.S. Energy Information Administration, Table 5.6.A**
Never plugged in
~$4.34
all 40 miles on gas · 10.9¢/mile
$3.91/gal · 36 mpg hybrid mode
EIA state-average gas price · EPA combined mpg with the battery depleted
Per mile, gas mode costs roughly 1.8× what electricity costs at home. Every mile inside the battery’s range is the cheap one — which is why a plug-in hybrid only pays off if you actually plug it in.
Level 1 vs. Level 2: can your outlet keep up?
The cost per kWh is the same either way. What changes is how much of the Lexus NX 450h+’s 37-mile electric range comes back while it’s parked — and whether the rest of your day runs on gas.
Level 1 · standard outlet
~3 mi/hour
120V · no installation needed
Plugged in 6pm–6am: about 36 of 37 electric miles by morning (97%). Full electric range from empty: ~15 hours.
Level 2 · 240V circuit
~17 mi/hour
240V · limited by the car's 6.6 kW onboard charger
Full 37-mile electric range in ~2.2 hours. Plugged in overnight, it’s full by morning every day — a bigger circuit wouldn't change that.
You probably don’t need a $2,000 dedicated home charger — 49% of people who’ve taken our readiness check don’t. The 51% who need an upgrade usually find out after they’ve bought the car. Better to know now.
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If your daily driving stays under ~36 miles, a regular outlet refills the Lexus NX 450h+ every night. Drive more than that and the rest of the day runs on gas — not a problem, just a cost — unless you add Level 2 or a longer plug-in window.
Does a Level 2 install pay for itself?
A home Level 2 setup — 240V circuit plus charger — typically runs $800–$1,800 installed. For a plug-in hybrid the question is different: a regular outlet already puts back about 36 of the Lexus NX 450h+’s 37 electric miles overnight (97%). Level 2 only earns its keep on the electric miles the outlet can’t cover — and the gas engine is the fallback, not a public fast charger.
Those 1 extra electric miles a night are worth about $0.05/day vs. running them on gas — at a mid-range install cost of $1,300, Level 2 doesn’t pay for itself for the Lexus NX 450h+ in Washington. The outlet is doing most of the work already.
Winter in Washington
Washington averages about 3 months a year cold enough to cut EV efficiency — typically 15–25% in deep winter. Here’s what that does to the Lexus NX 450h+’s numbers at a 20% efficiency loss:
Cost per mile
~7.5¢vs. 6.0¢ in mild weather
Electric range
~30 mivs. ~37 mi
For a plug-in hybrid the range cut isn’t about getting stranded — the gas engine takes over. It’s about which miles you pay gas prices for: a day that fit inside the battery in summer (up to 37 miles) fits only ~30 in deep winter, and the rest runs on gas.
These prices assume you can charge at home. Can you?
Every number on this page depends on plugging in where you park. Most people underestimate what a regular outlet can handle — and some overestimate it. Answer 5 quick questions and get a clear answer for your home, your driving, and the Lexus NX 450h+.
Check your EV readiness →Frequently asked questions
How much does it cost to charge a Lexus NX 450h+ at home in Washington?
At EIA state residential average of $0.15 per kWh, a full charge of the Lexus NX 450h+'s 18.1 kWh battery costs about $2.72 — good for about 37 electric miles, or 6.0 cents per mile.
Is it cheaper to run a Lexus NX 450h+ on electricity or gas in Washington?
Electricity. In Washington, electric mode costs about 6.0 cents per mile versus about 10.9 cents per mile for its own hybrid (gas) mode (36 mpg) at $3.91/gal — roughly 1.8x cheaper. Every mile inside the battery's 37-mile range is the cheaper one, which is why a plug-in hybrid only pays off if you plug it in.
Can you charge a Lexus NX 450h+ on a regular outlet?
Yes — a plug-in hybrid is the best case for a standard 120V outlet. The Lexus NX 450h+ recovers about 3 miles of electric range per hour, so plugged in overnight (6pm–6am) it gets back about 36 of its 37 electric miles (97%). Restoring the full electric range from empty takes about 15 hours.
Do you need a Level 2 charger for a Lexus NX 450h+?
Usually not. A regular outlet restores 97% of the electric range overnight; Level 2 fills it in about 2.2 hours (limited by the car's 6.6 kW onboard charger, not your circuit). Level 2 adds about 1 electric miles a night, worth about $0.05 a day vs. gas — at a typical $1,300 install, it doesn't pay for itself in Washington.
Lexus NX 450h+ charging cost in other locations
Other EVs in Washington
Want the full picture on EV charging costs?
This page covers the Lexus NX 450h+ in Washington specifically. For the complete breakdown — home vs. public rates by state, monthly cost by driving pattern, and how to lower what you pay — see our full guide to what it costs to charge an electric car.
**Electricity rate is the EIA state residential average, Electric Power Monthly Table 5.6.A. Gas-mode cost uses the EIA state-average gas price ($3.91/gal) and EPA combined mpg with the battery depleted. Charging cost assumes home (Level 1 or Level 2) charging; efficiency and battery figures from the EV guide. Rates last reviewed AUG 2026.