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§ 04 — Vehicle · WA

EV vs petrol in Western Australia — 2026 numbers.

Western Australia home electricity averages 30.3¢/kWh. Petrol is $1.78/L. On a typical 15,000 km/year, that means an EV saves you roughly $1,253/year at home charging. Plug in your numbers below to see your personal result.

Updated · May 2026·Source: AER · FuelCheck · FuelWatch·Read · 5 min

Your inputs

km / year

Petrol car

e.g. Corolla, Camry

Electric vehicle

e.g. BYD, Tesla, MG

Home rate; fast charging averages ~55¢/kWh.

5 years

Inputs local. Nothing sent anywhere.

The result

EV saves you · over 5 years

$6,263

in fuel/energy costs alone · 63% cheaper to "fill"

Petrol car

$10,013

Electric vehicle

$3,750

Cost per 100km
Petrol
$13.35
Cost per 100km
EV (home)
$5.00
Annual saving
$1,253
CO₂ saved · year
0.6 t

Calculation excludes purchase price difference, depreciation, insurance, servicing, and tyres. EVs typically have lower servicing (~$300/year less) but higher insurance and tyres. Add purchase price and depreciation for total cost of ownership.

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When the EV maths works in Western Australia

In Western Australia, a typical petrol car (7.5 L/100km) costs $13.35/100kmat the current bowser price. The equivalent EV (16.5 kWh/100km) charged at home costs $5.00/100km — a saving of $8.35 per 100km.

At 15,000 km/year that compounds to roughly $1,253/year in fuel savings. Over a typical 5-year ownership period: around $6,265 — enough to meaningfully offset a higher EV purchase price.

The wildcard is public fast charging: at 50–60¢/kWh the EV running cost rises to $9.08/100km — still cheaper than petrol, but the gap narrows. Apartment dwellers or frequent long-distance drivers should weigh the charging mix carefully.

§ Letters & replies

EVs in Western Australia, answered.

Common questions about electric vehicles in Western Australia.

How much does EV home charging cost in Western Australia?+ open

WA's average residential electricity rate is 30.3¢/kWh — in the mid-range nationally. Synergy (WA's main retailer) offers an EV tariff with off-peak charging at significantly reduced rates overnight. Annual home charging for 15,000 km costs approximately $750.

Does WA have EV charging infrastructure outside Perth?+ open

WA's vast distances make EV charging infrastructure critical — and it's improving. Synergy's EV Fast Charger network covers key highways, and Evie Networks has expanded to regional WA. The Perth to Broome coastal route still has gaps; check RAC's EV travel planner before any long trip.

Is WA a good place to own an EV?+ open

Perth is well-suited for EV ownership — mild climate, most residents have a garage for home charging, and petrol prices are relatively low (making the running cost comparison more nuanced). For long rural trips, plan charging stops carefully as fast charger density outside the metro area is still lower than the east coast.

Next: the rest of the running-cost picture

§ 05 — Vehicle

Fuel cost · WA

Petrol spend per trip, week and year at Western Australia's current bowser price.

§ 06 — Home

Solar panel ROI

Charge your EV from your own solar — near-zero marginal cost.

§ 04 — Vehicle

All-state EV comparison

See how Western Australia's rates compare to every other state.