Home charging cost
Charging a Toyota Prius Plug-In Hybrid 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
~3.9¢
vs. ~7.5¢ in gas mode (52 mpg)
Full charge (0 → 100%)
~$2.04
13.6 kWh · ~44 electric miles
Yearly · 12,000 electric miles
$474
if your days fit the 44-mi range · ≈ $39/month
What your typical day costs
To replace a 40-mile day
$1.58/day
$576/year
10.5 kWh added · all electric · about 3.9¢ per mile
Can a regular outlet put those 40 electric miles back overnight? For most plug-in hybrids it’s close — it depends on your outlet and your parking.
Free · about 2 minutes · no signup
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
~$1.58
all 40 miles electric · 3.9¢/mile
$0.15/kWh
Source: U.S. Energy Information Administration, Table 5.6.A**
Never plugged in
~$3.01
all 40 miles on gas · 7.5¢/mile
$3.91/gal · 52 mpg hybrid mode
EIA state-average gas price · EPA combined mpg with the battery depleted
Per mile, gas mode costs roughly 1.9× 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 Toyota Prius Plug-In Hybrid’s 44-mile electric range comes back while it’s parked — and whether the rest of your day runs on gas.
Level 1 · standard outlet
~4 mi/hour
120V · no installation needed
Plugged in 6pm–6am: about 44 of 44 electric miles by morning (100%). Full electric range from empty: ~12 hours.
Level 2 · 240V circuit
~13 mi/hour
240V · limited by the car's 3.5 kW onboard charger
Full 44-mile electric range in ~3.3 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.
Free · about 2 minutes · no signup to see your result
If your daily driving stays under ~44 miles, a regular outlet refills the Toyota Prius Plug-In Hybrid 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 44 of the Toyota Prius Plug-In Hybrid’s 44 electric miles overnight (100%). 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.
Here there are none: the outlet refills the whole battery. At a mid-range install cost of $1,300, Level 2 doesn’t pay for itself for the Toyota Prius Plug-In Hybrid in Washington — buy it for convenience, not savings.
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 Toyota Prius Plug-In Hybrid’s numbers at a 20% efficiency loss:
Cost per mile
~4.9¢vs. 3.9¢ in mild weather
Electric range
~35 mivs. ~44 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 44 miles) fits only ~35 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 Toyota Prius Plug-In Hybrid.
Check your EV readiness →Frequently asked questions
How much does it cost to charge a Toyota Prius Plug-In Hybrid at home in Washington?
At EIA state residential average of $0.15 per kWh, a full charge of the Toyota Prius Plug-In Hybrid's 13.6 kWh battery costs about $2.04 — good for about 44 electric miles, or 3.9 cents per mile.
Is it cheaper to run a Toyota Prius Plug-In Hybrid on electricity or gas in Washington?
Electricity. In Washington, electric mode costs about 3.9 cents per mile versus about 7.5 cents per mile for its own hybrid (gas) mode (52 mpg) at $3.91/gal — roughly 1.9x cheaper. Every mile inside the battery's 44-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 Toyota Prius Plug-In Hybrid on a regular outlet?
Yes — a plug-in hybrid is the best case for a standard 120V outlet. The Toyota Prius Plug-In Hybrid recovers about 4 miles of electric range per hour, so plugged in overnight (6pm–6am) it gets back about 44 of its 44 electric miles — a full battery. Restoring the full electric range from empty takes about 12 hours.
Do you need a Level 2 charger for a Toyota Prius Plug-In Hybrid?
Usually not. A regular outlet restores 100% of the electric range overnight; Level 2 fills it in about 3.3 hours (limited by the car's 3.5 kW onboard charger, not your circuit). A regular outlet already refills the whole battery overnight, so there are no extra electric miles for Level 2 to add — it doesn't pay for itself in Washington; buy it for convenience, not savings.
Toyota Prius Plug-In Hybrid charging cost in other locations
Other EVs in Washington
Want the full picture on EV charging costs?
This page covers the Toyota Prius Plug-In Hybrid 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.