TL;DR
- Home 7 kW charger: $1,800-$2,800 installed.
- Three-phase 22 kW: $2,500-$4,200 — only needed for fast overnight or fleet.
- Solar-integrated charging = effectively free fuel during daylight.
- Load management device required for most Ergon connections > 20 A.
What charger do I actually need?
For most Mackay homeowners, a 7 kW single-phase wall charger is plenty. Overnight, it adds 40-50 km of range per hour — more than enough for typical daily commutes.
Home chargers we install (2026)
| Charger | Power | Solar-aware | Best for |
|---|---|---|---|
| Tesla Wall Connector (Gen 3) | 7-22 kW | Yes (with Powerwall) | Tesla households |
| Fronius Wattpilot | 7-22 kW | Yes (native) | Fronius inverter homes |
| Myenergi Zappi | 7-22 kW | Yes (any inverter) | Retrofit to any solar |
| Sungrow EV charger | 7-22 kW | Yes | Sungrow-integrated homes |
| Ocular / Evnex | 7-22 kW | Partial | Budget-friendly |
Install process
- Switchboard check — do you have spare slots and adequate main breaker rating?
- Cable run — from switchboard to carport/garage (cost scales with distance).
- RCD / RCBO installation — mandatory Type A or Type B depending on charger.
- Load management device (where needed) to prevent main breaker tripping during simultaneous A/C + EV + oven use.
- Ergon notification (automatic for grid-tied; some connections need approval).
- Commissioning, test certificate, registration.
Solar + EV — the killer combo
A solar-aware EV charger (Wattpilot, Zappi, Powerwall+Wall Connector) watches your solar export and ramps charging to match. In practice, this means:
- 10-15 kWh of midday charging for free on sunny days.
- Effective "fuel cost" of $0.00/km for solar-charged portion.
- No surplus export wasted at poor FiT rates.
Commercial & fleet EV charging
Workplace, depot and destination charging need load management and often DC fast-charge. We design commercial EV projects for Mackay businesses including schools, hotels and fleet operators. See our electrical services page.
FAQs
Can I install my own EV charger?
No. Hardwired EV chargers must be installed by a licensed electrician in QLD. DIY installation is illegal and voids insurance.
Do EV chargers need approval from Ergon?
Sometimes. Hardwired chargers above 20 A (7 kW+) typically require notification. Three-phase 22 kW chargers often need formal approval and may trigger a service upgrade.
What about cyclone/storm damage?
Wall chargers are IP55 rated and designed for outdoor use. We recommend indoor or sheltered mounting and proper earth-leakage protection for reliability in Mackay's weather.
EV charger quote in 24 hours
Send us photos of your switchboard and intended charger location — we'll respond with a fixed quote.
Request quote