A Kalamunda hills home with the charger placed where the car parks, cable sized for the run.
Kalamunda · 6076

EV charger installation in Kalamunda.

Hills blocks, long driveways, bushfire zones, and installs that need to respect all three.

The install

What a Kalamunda install actually looks like

Kalamunda blocks are large, sloped and often heavily treed. The house may sit fifty metres from the road and the shed or carport may sit somewhere else again. Cable length and voltage drop are the defining technical questions on almost every hills quote.

We measure the actual run, calculate the drop, and size the cable so the charger delivers full output rather than derating at the end of a long thin circuit. Where a shed already has a sub main, we check whether it can carry an EV load before adding anything to it.

Bushfire attack level requirements apply across much of the hills. Cable routing, enclosure ratings and clearances all have to reflect that. It is one of the reasons hills installs take longer to plan than a flat suburban garage.

Long run terminated into a weatherproof isolator beside the charger so power can be killed locally.
Long run terminated into a weatherproof isolator beside the charger so power can be killed locally.
The hills above Perth. Beautiful driving country, and hard on a car that cannot charge at home.
The hills above Perth. Beautiful driving country, and hard on a car that cannot charge at home.

Solar first

Great sun, awkward trees, and outages

Hills roofs get excellent sun where they are clear, but jarrah and marri canopy clips a lot of arrays for part of the day. Yield varies more here than on the coastal plain, so a charger that blends solar with a grid minimum is more practical than a surplus only setting.

Supply reliability is the other hills reality. Outages happen more often up here, and a household with a battery plus an EV has a genuinely useful buffer. Worth factoring into the plan if you are already considering storage.

Recent install

A recent Kalamunda install

Location
Off Canning Road, Kalamunda 6076
The home
Timber and brick hills home on a treed acre, 8kW solar, single phase, detached shed used as the garage.
The charger
Zappi 7kW tethered on the shed wall with a weatherproof isolator beside it.
Outcome
42 metre run in conduit with the cable upsized for voltage drop. Shed sub main assessed and retained. Full day on site including testing.
Zappi 7kW mounted under cover at a hills carport, sheltered from weather and debris.
Zappi 7kW mounted under cover at a hills carport, sheltered from weather and debris.
Local considerations

What to know before install day in Kalamunda

  • Long runs need cable sized for voltage drop, not just current. Ask what size has been allowed and why.
  • Bushfire attack level requirements affect routing and enclosures. Make sure your installer knows the rating for your block.
  • Existing shed sub mains are often undersized. They need assessing before an EV load is added to them.
FAQ

Kalamunda EV charging questions

My shed is 40 metres from the house. Can I still charge there?+

Yes. It just needs the right cable size and possibly a sub main assessment. We do a lot of long run hills installs.

Does bushfire zoning affect the install?+

It affects cable routing, enclosure selection and clearances. It does not stop you having a charger, it just has to be done to the right standard.

Will power outages damage the charger?+

No. Chargers handle supply interruptions safely and resume when power returns. A battery system will keep charging available through shorter outages.

Perth FAQ

EV charger installation in Perth, answered

The questions we get asked most by WA homeowners, answered by the electricians who do the work.

Does Western Power need to be notified about my EV charger?+

For a standard single phase 7kW charger on an existing supply, no separate application is usually needed. Your electrician still lodges the required notice of completion with Building and Energy WA. If the install needs a bigger main switch, a service upgrade, or a move to three phase, that does go to Western Power first and it adds time to the job, so we check it before quoting.

Is single phase or three phase more common in Perth homes?+

Most Perth houses are single phase, which caps a home charger at about 7.4kW. Newer estates in areas like Ellenbrook, Baldivis and Canning Vale are more likely to have three phase already at the board, and a lot of older knock down rebuilds get it too. Lift the switchboard cover and count the incoming actives, or send us a photo and we will tell you.

Which Synergy plan is best once I have a home charger?+

Synergy runs time of use options aimed at EV owners with a cheap overnight window and a cheaper midday window built around WA's solar surplus. Charging in those windows rather than the evening peak is where the real savings sit. Check current rates on Synergy's site before switching, because the windows and prices change.

Should I charge from my solar instead of the grid in Perth?+

Usually yes. WA feed in tariffs are low, so exporting midday solar earns you very little while grid power costs several times more. A solar aware charger such as a myenergi Zappi or Fronius Wattpilot watches your export at the switchboard and pushes surplus into the car instead of sending it out for a few cents.

Do coastal Perth suburbs need a different charger?+

If you are in the salt spray zone near the coast from Mullaloo through Scarborough, Cottesloe and Fremantle, outdoor units cop corrosion. We fit chargers rated IP65 or better, use stainless or marine grade fixings, and where possible mount the unit inside the garage with only the tethered lead exposed.

What about summer heat and charger derating?+

Perth summers regularly sit over 40C, and a charger baking in full afternoon sun can throttle its output to protect itself. West and north facing walls are the worst spots. We site the unit in shade or under eaves where we can, which keeps it charging at full rate and extends the life of the electronics.

Can I get a charger installed in a Perth apartment or strata complex?+

Yes, but it is a different job to a house. You need strata approval, a metering plan so the electricity bills back to your lot rather than common property, and often a load managed charger so the building's supply is not overloaded. We put that documentation together for the strata council as part of the quote.

How does a limestone driveway or brick paving affect the cable run?+

Plenty of Perth homes have the switchboard on one side and the parking on the other, with paving or limestone in between. Where we can, we run the cable through the roof space or along the eaves to avoid lifting anything. When trenching is unavoidable we lift and relay pavers rather than cut them, and that extra work is priced up front, not added later.

Are there WA rebates for home EV chargers?+

WA does not currently run a state rebate on home charger installs. The EV rebate scheme that ran on vehicle purchases has closed. The saving comes from the tariff side instead: charging off peak or straight off your own solar. We will not quote a rebate that does not exist.

Who is legally allowed to install an EV charger in Perth?+

A licensed WA electrical contractor. The circuit has to be dedicated, protected by the correct RCD type for the charger, and wired to AS/NZS 3000 with the EV specific requirements of AS/NZS 3012 and the manufacturer's instructions. Candela is licensed under EC# 15317 and fully insured, and you get the compliance paperwork on completion.

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