Quick Answer

Charging an electric car at home costs roughly 2–4 cents per km on a standard Melbourne residential tariff of 28–35c/kWh — about one-quarter the cost of petrol. A Level 2 home charger (7kW) costs $800–$2,000 installed by a licensed electrician. Overnight off-peak charging (around 22c/kWh) cuts your cost further to under 2.5 cents per km.

EV Home Charging Costs at a Glance

Your cost per km depends on three things: your car’s efficiency (kWh/100km), your electricity rate (c/kWh), and whether you charge at peak or off-peak times. Here’s how the numbers stack up for Melbourne households.

Electricity Rate Efficient EV (15kWh/100km) Average EV (18kWh/100km) Large EV (22kWh/100km)
22c/kWh (off-peak TOU) $3.30/100km $3.96/100km $4.84/100km
28c/kWh (standard flat) $4.20/100km $5.04/100km $6.16/100km
33c/kWh (VIC average) $4.95/100km $5.94/100km $7.26/100km
0c/kWh (solar self-use) $0 $0 $0
Pro tip: Victoria’s time-of-use tariffs offer off-peak rates from 11pm–7am at around 20–24c/kWh. Setting your EV to charge overnight saves 25–30% annually versus peak charging.

Cost Per km for Popular EVs in Australia

EV Model Efficiency Cost/km at 28c Cost/km at 33c Annual cost (15,000km)
BYD Dolphin 13.5–15 kWh/100km ~2.0c ~2.3c ~$345
Tesla Model 3 SR 14–16 kWh/100km ~2.1c ~2.5c ~$375
MG4 15–17 kWh/100km ~2.2c ~2.6c ~$390
Tesla Model Y 16–18 kWh/100km ~2.4c ~2.8c ~$420
Kia EV6 17–19 kWh/100km ~2.5c ~3.0c ~$450
BMW iX 20–24 kWh/100km ~3.1c ~3.6c ~$540

Home Charger Installation Costs

Most Melbourne EV owners upgrade from a standard 10A powerpoint to a dedicated 7kW Level 2 wall charger. Here’s what to budget.

Component Cost Notes
7kW wall charger unit $350–$900 JetCharge, Wallbox, Tesla Gen 3, Ocpp-compatible
Licensed electrician installation $300–$800 2–4 hours typical, required by law
Switchboard upgrade (if needed) $600–$1,500 Many pre-2000 SE Melbourne homes require this
Extra cabling (detached garage) $200–$600 Long cable runs from switchboard to garage
Total typical $800–$2,000 Most SE Melbourne homes fall in this range
Safety warning: EV charger installation must be done by a licensed electrician in Victoria — self-installation of a hardwired charger is illegal. Verify your installer at the Victorian Building Authority register.

EV vs Petrol: Running Cost Comparison

At current Melbourne petrol prices of around $1.85–$2.00/litre, a petrol car averaging 8L/100km costs $14.80–$16 per 100km in fuel. Here’s the annual comparison at 15,000km.

Vehicle Cost/100km Annual fuel/charging Saving vs petrol
Petrol car (8L/100km @ $1.90) $15.20 $2,280 —
Petrol hybrid (5L/100km @ $1.90) $9.50 $1,425 $855/yr
EV on flat rate (33c, 17kWh) $5.61 $842 $1,438/yr
EV on off-peak (22c, 17kWh) $3.74 $561 $1,719/yr
EV with solar self-use ~$0 ~$0–150 ~$2,130–2,280/yr

Key Factors That Affect Your Charging Cost

1. Your Electricity Tariff

Switching to a time-of-use tariff before your EV arrives is the single biggest cost lever. Victoria offers some of Australia’s best EV tariff options via Origin, AGL, Amber Electric and others. The gap between peak (38c) and off-peak (22c) charging can save $300–$500 per year for an average Melbourne driver.

2. EV Efficiency and Battery Size

A BYD Dolphin (45kWh) costs about $10–$13 to charge from empty; a Tesla Model Y (75kWh) costs $17–$25. What matters for day-to-day cost is efficiency in kWh/100km, not total battery capacity. A heavier SUV with a large battery isn’t necessarily more expensive per km than a small hatch if it’s efficient.

3. Solar Self-Consumption

SE Melbourne homes with north-facing roofs are well-placed for solar EV charging. A 6.6kW system generates 25–30kWh on a sunny day — enough to fully charge most EVs for free. A smart charger like a Zappi or Wallbox Pulsar Plus can automatically divert excess solar to your car, making your per-km cost effectively zero during the day.

4. Charging Losses

No charger is 100% efficient. Level 2 units run at 90–93% efficiency; standard powerpoints at 85–88%. This adds 7–15% to your actual wall energy draw versus what the car’s display shows. Factor this in when calculating your real cost per km.

Pro tip: Register for a free EV-specific electricity plan comparison at Energy Made Easy. Some VIC retailers now offer EV rates as low as 15–18c/kWh overnight — nearly half the standard flat rate.

Tips and Gotchas

  1. Switch tariffs before your EV arrives. Off-peak TOU plans save 25–30% vs flat rates immediately. Compare via Energy Made Easy.
  2. Don’t charge to 100% daily. Most manufacturers recommend 20–80% for daily charging to preserve battery longevity. Full charges are fine before road trips.
  3. Get 2–3 electrician quotes for your charger install. Prices vary significantly across SE Melbourne suburbs.
  4. Check switchboard capacity first. Pre-2000 homes in Dandenong, Frankston and Pakenham areas often have 60A switchboards needing upgrade before adding a 32A EV circuit.
  5. A smart charger pays for itself. Units like Wallbox Pulsar Plus or JetCharge allow scheduling, energy tracking and solar diversion — typically $200–$400 more than basic units, recovered within 1–2 years.
  6. Check the Solar Victoria EV charger rebate. Rebates have been available periodically — always verify current status at Solar Victoria before purchasing.
  7. Public charging is 2–3x your home rate. Chargefox and NRMA networks charge 45–75c/kWh. Use them for convenience on road trips, not as a daily charging strategy.
  8. Notify your insurer when you install a wall charger — some policies require notification of electrical upgrades to maintain cover.
  9. Keep charging records for tax. If you use your EV for work, ATO allows deductions for work-related charging costs. Your smart charger’s energy log is the evidence you need.
  10. Tyre costs are higher for EVs. EVs are heavier than equivalent petrol cars, so expect 15–25% faster tyre wear. Budget an extra $200–$350/year in your running cost calculations.
Safety warning: Never use a damaged or modified extension lead for EV charging. Sustained 10A draw through an undersized or damaged lead causes overheating and is a leading cause of EV-related fires in Australia. Use only the manufacturer-supplied portable EVSE — never a third-party adaptor.

Local Melbourne Resources

Frequently Asked Questions

How much does it cost to fully charge an EV at home in Melbourne?

For a 60kWh battery (common in Tesla Model 3, Kia EV6), a full charge from empty costs $16–$20 on a standard flat rate of 28–33c/kWh, or around $13–$16 on an off-peak TOU tariff of 22c/kWh. Most drivers top up daily rather than charging from empty, making daily sessions $3–$7 for 50–100km of range.

Is home charging cheaper than public charging?

Yes — significantly. Public fast chargers in Victoria cost 45–75c/kWh, up to 3x your home rate. For SE Melbourne commuters doing daily trips under 100km, home charging almost always wins on cost. Use public charging for convenience on longer trips, not as a cost strategy.

Can I use a normal powerpoint for EV charging?

Yes — a standard 10A powerpoint delivers about 2.2kW, adding 10–13km of range per hour. For most SE Melbourne drivers doing 30–50km daily, an 8–10 hour overnight charge via powerpoint is adequate. Have a licensed electrician check the wiring and powerpoint condition before using it regularly for EV charging.

How long does overnight EV charging take?

With a 7kW Level 2 wall charger, most 60–80kWh EVs charge from 20% to 100% in 8–12 hours, perfectly suited to overnight charging. A 10A powerpoint takes 20–30 hours for a full charge from empty — workable for daily top-ups but slow for full charges.

Does Victoria offer rebates for home EV charger installation?

Solar Victoria has offered home EV charger installation rebates periodically. Eligibility and funding rounds change regularly — always check solar.vic.gov.au for current availability before purchasing equipment based on rebate assumptions.