EV Charger Installation in Highton

A 1960s Highton brick veneer that has never been renovated will usually have an original board with no residual current protection and nothing spare. A 1980s house typically has breakers but few spare ways. Anything from the late 1990s on generally has a compliant board with room, and the charger goes straight on.

That is why the first question we ask about a Highton property is the build year, not the address. Where the board has to be replaced it runs $800 to $3,500 depending on the meter panel and the consumer mains, and we quote it as a separate line so you can see which part of the invoice belongs to the car.

Homes on the Barrabool Hills escarpment often sit well back or well below the street, and the distance from the street to the meter position is the single biggest cost variable on any supply work here. The same applies to the charger circuit when the garage is at the opposite end of a stepped block.

The generous 1960s to 1980s blocks do at least give real side access, which the tight inner suburbs do not. That means an external run in conduit is usually possible rather than having to fight through a roof space, so the cost follows the metres rather than the labour.

On the newer north west edge the blocks tighten and the garages run to the boundary, so the generous side access that defines older Highton disappears. What you get instead is a modern board, often on the garage wall itself, and a car that parks a few metres from it.

Those are among the cheapest installs in the suburb. The design conversation moves off the switchboard and onto spare capacity, because a new home with ducted reverse cycle, induction cooking and a heat pump hot water service is already carrying a lot of load on a single phase supply.

Highton streets are single phase on the Powercor network, so 32A and about 7.4kW is the ceiling. That is 40 to 50km of range per hour and it covers a Melbourne commute overnight comfortably. Three phase conversion is a distributor job with new consumer mains and a new board, and on an escarpment property with a long run from the street it is an expensive way to solve a problem you do not have.

The elevation that makes Highton good for solar also makes it windier than the flat suburbs. For a charger that mostly matters where the unit mounts on an exposed elevation or a carport post, and it is a reason to fix into structure properly rather than into cladding.

The charger takes its own final subcircuit back to the board, cable sized for a continuous rather than an occasional load, a correctly rated breaker and RCD protection suited to DC leakage under AS/NZS 3000. It cannot share a circuit with power points or lights, and no reputable electrician will do it that way.

Powercor runs the network in Highton and in our own area, so the load addition process is one we already know. We commission the unit at its configured current, confirm it delivers what it claims, issue the Certificate of Electrical Safety under REC 37223 and guarantee our workmanship for 12 months.