Who Installs Commercial EV Chargers in Sydney?
Commercial EV charging work is usually decided at the switchboard and along the cable route, not at the wall where the charger sits. The job starts with capacity, what the site is already drawing, what headroom exists, and whether charging can be added without tripping mains, overheating submains, or overloading a riser feed.
From there, the design is practical. Where chargers can be mounted, how cables will be protected, and what fault protection suits the equipment. On sites where the existing network supply cannot support the added maximum demand and service mains or supply upgrade work is required, that work requires Level 2 ASP authorisation and is handled through a Level 2 electrician.
What We Check Before Handover
Before we hand the site back, we verify the protection, the earthing, the physical install, and commissioning behaviour, then document what was done so it can be maintained. All electrical work is completed to AS/NZS 3000:2018 and relevant NSW installation requirements, with a CCEW issued on completion.
Commercial EV Charging Services We Handle in Sydney
1. Workplace EV Charging Installations
Staff parking chargers with capacity checks, tidy containment, and access control options where usage needs to be managed.
2. Strata Common Property EV Charger Installations
Shared-area installs planned around approvals, basement access windows, and clean cable routes through common property.
3. Fleet Depot Charging Infrastructure
Multi-bay setups designed for higher duty cycles, staged expansion, and realistic simultaneous-charging assumptions.
4. Visitor and Customer Car Park Chargers
Charger positioning planned for safe vehicle access and protection in high-traffic areas.
5. AC Destination Chargers (7kW / 11kW / 22kW)
Suited to longer dwell times with correct circuit sizing, isolation, and protection.
6. DC Fast Charger Installations (50kW+)
Higher-power installs that often involve three-phase constraints, dedicated distribution, and careful containment planning.
7. Dynamic Load Balancing and Active Load Management
CT-meter based control to cap site demand and allocate charging current across multiple units.
8. Switchboard and MSB Upgrades for EV Charging
Capacity and protection work where EV circuits cannot be added cleanly without board changes.
9. Submains, Containment and Long-Run Installations
Long cable runs through basements and risers with mechanical protection and penetrations made good.
10. OCPP-Ready Chargers and CPMS Integration
Commercial setups that need user control, reporting, or billing through a managed platform.
11. EVSE Fault-Finding, Repairs and Upgrades
Diagnosis of trips, comms faults, damaged connectors, and water ingress, followed by rectification.
12. Compliance Testing, Labelling and Handover
Commissioning checks, clear labelling, as-installed notes, and documentation on completion.
Capacity, Maximum Demand and Load Management on Commercial Sites
On commercial EV charging installs, the limiting factors are usually upstream. Spare capacity at the main switchboard, submains sized for the original building load, and cable routes that create long runs with voltage drop and containment constraints.
We start with a practical site check. Existing load, spare headroom, and how many chargers can run at the same time without pushing the site past its workable limit. If the board is at capacity or protection and segregation is outdated, that becomes part of the scope through targeted switchboard upgrades.
What maximum demand changes
Dynamic load balancing in older Sydney buildings
In older strata towers and Art Deco complexes, a site can be electrically constrained even when the board still has physical space. Dynamic load balancing and active load management can cap site demand and allocate current across chargers without nuisance trips.
This is typically done by measuring live site load with CT meters and controlling chargers so total demand stays under a defined cap. When building load rises, charging current is reduced. When load falls, charging ramps back up. It cannot compensate for undersized submains running hot, a switchboard that needs refurbishment, or a supply that is genuinely constrained at the network connection.
Get a quick quote or speak to a licensed electrician about your site.
AC vs DC Charging on Commercial Sites, and What Changes in the Installation
Commercial EV charging usually falls into two categories. AC destination charging suits longer dwell times like staff parking, strata visitor bays, and hotels. DC fast charging suits short dwell times and higher turnover, but it comes with heavier electrical and siting constraints.
Charger selection and site constraints usually decide the rest of the design, including whether the job is mainly new circuits and containment or whether it becomes broader EV charger installation work across multiple bays and distribution points.
AC destination chargers (7kW, 11kW, 22kW)
DC fast chargers (50kW and above)
Protection and fault considerations for EVSE
EV charging equipment can introduce DC fault components, so protection selection needs to match the EVSE design and the final circuit arrangement. In practice, this comes down to confirming whether the equipment requires a Type B RCD or whether a Type A arrangement with 6 mA DC fault protection is satisfied by the unit’s internal protection, then ensuring upstream coordination and local isolation where required.
This sits within broader site electrical work handled under commercial electrical where multiple distributions, tenancies, and common areas are involved.
Real-world issues that affect the install
Commercial EV Charging Installation Cost in Sydney, and What Changes the Price
How much does a commercial EV charger installation cost in Sydney?
On average, a standard commercial EV charging installation in Sydney costs between $2,700 and $6,000 per charging station, fully installed. For a straightforward package including a fast 22kW 3-phase commercial charger and standard wall-mounted wiring (up to 10 metres from the switchboard), you can expect to pay between $2,700 and $3,800. Larger scale car park setups or installations requiring complex infrastructure, custom pedestals, or extensive cable runs typically average closer to $6,000 per unit.
While we provide transparent, highly competitive pricing tailored to your specific premises, the exact cost of your commercial EV charger installation will depend on several critical site factors:
Pricing accordion
How Our Commercial EV Charging Installation Process Works
Step 1: Site check and scope confirmation
We inspect the main switchboard and relevant distribution points, confirm available capacity and likely simultaneous charging demand, then walk the cable route to each bay. This includes checking mounting options, impact risk in vehicle paths, and constraints like post-tensioned slabs, riser access, or basement restrictions.
Step 2: Design, approvals, and staging plan
We finalise charger locations, circuit and submain sizing, containment method, isolation points, and protection approach to suit the EVSE. If the site needs load management, we plan CT metering location and control logic so charging stays within the agreed site cap. Where works affect common property, we align the install plan with access windows and building rules so the job can run without disrupting tenants.
Step 3: Installation and commissioning
We install containment and cabling, mount chargers or pedestals with appropriate fixings, fit mechanical protection where required, then connect and commission the EVSE. Commissioning includes verifying charger operation and checking load management behaviour where installed.
Step 4: Testing and handover
We complete electrical testing on the final circuits, confirm protection operation and earthing continuity at the charging location, update site labelling where required, and provide as-installed notes for facilities or strata records.
Why Choose Calibre Connect for Commercial EV Charging Installation
Commercial Load Scoping, Not Guesswork
We scope charging around the site’s actual constraints at the main switchboard and distribution points, including realistic simultaneous charging assumptions.
Clear Cable Routing and Mechanical Protection in Car Parks
We plan containment through basements and risers with protection where vehicles and equipment can damage cabling, keeping the installation serviceable.
Load Management When the Building Is Electrically Tight
Where the site has limited headroom, we use CT metering and load control logic to keep charging within an agreed site cap.
Protection Selection Matched to the EVSE
We confirm what the equipment requires and design protection so it suits the charger and coordinates with upstream devices.
Strata- and Facilities-Friendly Handover
We provide as-installed notes, clear circuit identification, and documentation that facilities teams and strata managers can use for maintenance and staged expansion.
Compliance and Accountability on Completion
The installation is tested, clearly labelled, and handed over with full documentation for compliance and future reference.
What Our Clients Say About Calibre Connect Commercial EV Charging Installation
Service Areas: Commercial EV Charging Matched to Sydney’s Building Stock
The age of the electrical infrastructure, car park construction, and local exposure conditions change what a practical EV charging install looks like. A CBD high rise basement with long cable routes and shared switchboards needs a different approach to a coastal car park exposed to salt air, or a business site with older distribution and limited spare capacity.
Here’s how we tailor commercial EV charging installs across Greater Sydney:
Sydney CBD (High Rise Basements and Shared Infrastructure)
In the CBD and adjacent commercial towers, EV charging often means long submain runs, shared distribution, and tight access windows in basements and plant areas.
Eastern Suburbs (Coastal Exposure and External Car Parks)
In coastal pockets like Bondi, Coogee, and Rose Bay, external chargers and car park equipment wear faster if material selection is wrong.
Inner West (Older Commercial Stock and Mixed Upgrades)
In the Inner West, we often see older mixed-use buildings where the electrical system has been modified over time, sometimes with limited documentation.
North Shore (Strata Buildings and Basement Constraints)
On the North Shore, strata buildings commonly have basement parking with shared risers and common property rules that affect how work is staged.
Hills District (Modern Sites, Larger Loads, Staged Rollouts)
In newer commercial sites and mixed developments, we often see clearer access but larger scope, with more bays and higher future demand expectations.
Northern Beaches and Sutherland Shire (Coastal Humidity and External Plant)
Across coastal edges, humidity and exposure can be as important as electrical capacity, especially where equipment is mounted outdoors or in open-sided car parks.
Frequently Asked Questions
Ready to add commercial EV charging to your site in Sydney?
Request a quote and we will scope capacity, cable routing, and the right charger setup for your building.
Call today and we’ll lock in a time that suits you.