What it costs to charge a BYD in Australia
By Sithum Imarsha Last reviewed
With these settings, a BYD Dolphin 2023 Dynamic costs about $4.03 per 100 km and $508 a year to charge. That is $2,814 a year less than an average petrol car.
Your result
Yearly saving vs petrol
$2,814a year
$3,321.68 petrol − $508.03 EV, at 12,600 km
At these numbers the EV costs — a year more than petrol.
- EV per 100 km
- $4.03
- Petrol per 100 km
- $26.36
- EV a year
- $508
- Petrol a year
- $3,322
- Blended electricity rate
- 32c/kWh · 12.6 kWh/100 km
NSW road user charge. NSW will charge EVs 3.095c per km (the 2026-27 rate, indexed yearly) from 1 July 2027, or sooner if EVs reach 30% of new vehicle sales. At your km that is about — a year. Saving after it: —.
Free midday power. —
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How we calculated this
- The energy the car uses over a set distance comes from its Green Vehicle Guide figure.
- Each share of charging is priced at its own rate: home, an EV night plan, public fast chargers and your own solar.
- The petrol car is priced from its fuel use and the price per litre. The yearly saving is the gap between the two.
Full method, tables and sources: EV charging cost vs petrol calculator
| Way of charging | Rate | Per 100 km |
|---|---|---|
| Home, normal rate | 32c/kWh | $4.03 |
| Home, EV night plan | 7c/kWh | $0.88 |
| Public DC fast (no loss added) | 70c/kWh | $8.82 |
| Solar (feed-in given up) | 5c/kWh | $0.63 |
| Petrol car, per litre | $2.375 | $26.36 |
Find the energy per 100 km
12.6 kWh per 100 km, 12.6 kWh from the wall on AC
Blend the electricity rates
32c/kWh
EV cost per 100 km
12.6 kWh × 32c/kWh = $4.03
Petrol cost per 100 km
11.1 L × $2.375 = $26.36
A year of driving
$3,321.68 − $508.03 = $2,813.65
This version starts with the BYD Dolphin Dynamic, the most efficient car in our list. Pick a Seal or another Dolphin from the car list.
BYD: what to know
Official source
- The Green Vehicle Guide lists the 2023 BYD Dolphin at 126 Wh/km (Dynamic) and 142 Wh/km (Premium), and the 2023 Seal at 138 Wh/km (Dynamic) and 146 Wh/km (Premium).
Not yet checked
- The BYD Atto 3 is not in the list yet. Its Green Vehicle Guide page returned an error when we checked on 23 September 2026. BYD's spec sheet lists 49.92 and 60.48 kWh batteries. Pick Custom and type your own figure.
| Car | Battery | Home, per 100 km | Fast, per 100 km | A year | One charge |
|---|---|---|---|---|---|
| Seal Dynamic | 61.44 kWh | $4.42 | $9.66 | $556 | $13.21 |
| Seal Premium | 82.56 kWh | $4.67 | $10.22 | $589 | $17.75 |
| Dolphin Dynamic | 44.9 kWh | $4.03 | $8.82 | $508 | $9.66 |
| Dolphin Premium | 60.48 kWh | $4.54 | $9.94 | $573 | $13.01 |
- One charge at home, from 20% to 80%, costs from $9.66 for the BYD Dolphin 2023 Dynamic (44.9 kWh battery, about 239 km) to $17.75 for the BYD Seal 2023 Premium (82.56 kWh battery, about 380 km).
- A bigger battery does not mean a dearer car to run. The BYD Seal 2023 Dynamic has more battery than the BYD Dolphin 2023 Premium (61.44 kWh against 60.48) and uses less power: 13.8 kWh per 100 km against 14.2.
Each row is the calculator on this page: 12,600 km a year (Official source), with fast charging at 70c/kWh (Estimate). Home charging is at our plain average of the state default rates, 32c/kWh. The state rates are: Dated third-party source, except Western Australia (Official source). Energy use is each car's Green Vehicle Guide figure, measured at the wall (Official source). Battery sizes are usable kWh (Official source). One charge is from 20% to 80% on a 7 kW wall charger, with 12% lost on the way in (Estimate), as the charging time calculator works it out.
Which charger a BYD can use
7 kW on AC: the Seal Dynamic and Seal Premium
AC charging limit of the Seal Dynamic and Seal Premium: 7 kW.
Source: BYD Australia 2025 Seal brochure: AC charging port Type 2 (7kW). The European car takes 11 kW (Official source). Checked 30 September 2026.
The charging time calculator says of every BYD in our list: "This car charges on one phase, so on an 11 kW three-phase charger it gets only 3.68 kW. That is slower than a 7 kW wall charger." From 20% to 80% on a 7 kW wall charger takes about 5 h 54 min for the Seal Dynamic and 7 h 56 min for the Seal Premium. Every charger: the EV charging time calculator.
7.36 kW on AC: the Dolphin Dynamic and Dolphin Premium
AC charging limit of the Dolphin Dynamic and Dolphin Premium: 7.36 kW.
Source: BYD Australia publishes no kW figure for this car: its brochure says only "AC charging port - Type 2". We assume a single-phase 32 A charger at 230 V (Estimate). Checked 30 September 2026.
From 20% to 80% on a 7 kW wall charger takes about 4 h 6 min for the Dolphin Dynamic and 5 h 31 min for the Dolphin Premium. Every charger: the EV charging time calculator.
Why we never add charging loss to an official figure, and how solar and free midday hours are priced: read the guide on the main EV charging cost calculator.
Questions
Which BYD is cheapest to charge?
Of the 4 BYD models in our list, the BYD Dolphin 2023 Dynamic uses the least: 12.6 kWh per 100 km, about $4.03 at our average home rate of 32c/kWh. The BYD Seal 2023 Premium uses the most: 14.6 kWh, about $4.67.
What does a BYD cost to charge for a year?
Over 12,600 km, the Dolphin Dynamic costs about $508 at our average home rate of 32c/kWh, and the Seal Premium about $589. A petrol car that uses 11.1 L per 100 km costs $3,322 over the same distance, at 237.5c a litre.
What does a BYD cost at a public fast charger?
At our fast-charging estimate of 70c/kWh, the Dolphin Dynamic costs about $8.82 per 100 km and the Seal Premium about $10.22. Type the price on the charger to get your own figure.