Voltline Electrical Co.
EV charging · Home & commercial

EV Chargers

An EV charger your switchboard can actually carry. We start with a load check, not a sales sheet, so you get the right charger for your supply and phase, load management where the board needs it, and the cost of any upgrade up front instead of after the deposit.

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In-brand illustration
EV charging on an existing supply

Load management keeps it under the limit.

A smart charger watches the main and backs off when the house draws hard, so the total never trips the supply.

House load
38 A
EV charger
30 A
63 A main
Load management on
The charger throttles to 25 A so the total holds under the main.
Scope

What this job includes.

  • ✓Home 7kW single-phase and 22kW three-phase chargers
  • ✓Switchboard and supply load check before anything is quoted
  • ✓Load management and OCPP for commercial, fleet and strata
  • ✓Solar-smart charging from your excess generation
  • ✓Destination and workplace charging with billing and access control
Our system: The switchboard load check comes first, every time. We confirm your phase and spare capacity, quote any board upgrade as a line, and set load management where the supply needs it, so the charger does not trip the house or sit on an unsafe shared circuit.
Estimator

Size it for yourself, in three clicks.

A starting point using the same logic we use on site. Indicative only, not a quote.

Your average quarterly electricity bill

Indicative only. A real number comes from a site assessment with the load calc and switchboard check. This tool sizes a starting point, not a quote.

Scorecard

Will your switchboard carry a charger?

The load check is the first thing we do on site. Get an early read in a minute.

Is your switchboard solar, battery and EV ready?

Five questions. It takes a minute and tells you whether your board can carry new load, or whether an upgrade comes first. Indicative only, not a substitute for a site check.

1. Single or three phase power?
2. How old is your switchboard?
3. Does the board have safety switches (RCDs)?
4. Any spare ways (empty slots) on the board?
5. Main switch rating, if you know it

Answer all five to see your readiness.

How we quote it

The same scope sheet, every time.

Whatever the job, your quote shows the load calc, the cable sizing and the compliance, so you can see exactly what you are paying for.

The scope and compliance sheet
  1. 1 Load calculation. Your actual demand worked out and shown, not a system size guessed off the roof.
  2. 2 Cable sizing + run length. Sized for the inverter or charger and the distance, not the cheapest roll on the van.
  3. 3 Switchboard assessment. Spare capacity, RCD and surge protection, fault level. Checked before anything is added.
  4. 4 System sized to your bill. Solar and battery sized to your usage and load profile, not to the headline rebate.
  5. 5 Make + model, named. The exact panel, inverter, battery or charger on the quote, not "good panels".
  6. 6 Warranties, itemised. Product, performance and workmanship listed separately with their years, so you can compare like for like.
  7. 7 Compliance paperwork. CES, Certificate of Compliance and as-builts named as deliverables, plus STCs handled and shown as a line.
If a quote does not show these lines, you cannot compare it, and you do not know what has been cut.
How it runs

What happens, step by step.

1

Site + load assessment

We measure the load, read the switchboard, check supply and phase, and look at roof or cable routes.

2

Design + scope sheet

You get the load calc, cable sizing, the named equipment and an itemised quote. The workings are on the page.

3

Contract + schedule

Fixed scope, STCs and rebates shown as a line, a start date that fits your trading or build program.

4

Install

Licensed install to AS/NZS 3000, staged around live sites and tenants where needed.

5

Test + certify

Every circuit tested, RCDs proven, Certificate of Compliance issued. Solar and battery commissioned and monitored.

6

Handover + docs

As-builts, test results, warranties, monitoring set up, and a walk-through of how it runs.

Licensed, covered, warranted

The paperwork behind the price.

EC-00000 (DEMO), CEC A0000000 (DEMO), Public liability to $20M, and a 10-year workmanship workmanship warranty. All in writing, all on the quote.

Marcus walks through exactly what is covered: the licence and CEC accreditation you can verify, the cover that protects your site, and the warranty that names its own exclusions instead of hiding them.

The licence, the cover, the warranty, and how to check each one.
Proof, recent work

EV Chargers jobs we’ve done.

Before
After
22kW three-phase EV charger, dealership, Newcastle. 22kW three-phase charger fed from a new 250A main switchboard for a CBD-edge car dealership.
Before
After
Home EV charger and board check, Kotara. 7kW home charger on a load-managed circuit after a board check freed up 2 spare ways.
See the full gallery
Questions, answered

Common EV Chargers questions.

Will my switchboard support a charger? +
That is the first thing we check, before we quote. We open the board, confirm your phase, spare ways and main switch rating, and work out whether it can carry a charger as is or needs an upgrade. The switchboard scorecard on our pricing page gives you an early read, and the site check confirms it.
What is the difference between 7kW and 22kW? +
Mostly your supply. A 7kW charger runs on single-phase power and fully charges most EVs overnight, which is plenty for a home. 22kW needs three-phase supply and charges far faster, which suits two-car homes, workplaces and fleets. If you are on single phase, 22kW means a supply upgrade, and we cost that before you decide.
Do I need load management? +
Often, on a busy board or with more than one charger. Load management throttles the charger when the rest of the house or site is drawing hard, so you avoid nuisance tripping and an unsafe overload. For commercial and fleet sites with multiple chargers it is essential, and we set it up.
What does an install actually cost? +
A 7kW home charger is typically in the $1,200 to $2,800 range installed. The variable is the switchboard: if it needs an upgrade or you need three-phase supply for 22kW, that is a real cost, between roughly $3,000 and $8,000, and we put it on the quote before you commit, never after.
Can I charge from my solar? +
Yes, with a solar-smart charger. It can be set to draw only your excess solar, so you charge on free generation instead of buying from the grid, or to top up at a set rate when you need the range. We match the charger to your solar and how you drive.
Does OCPP lock me to one app or network? +
Not if the charger is properly OCPP-compliant, which is what we fit for commercial and fleet sites. Open Charge Point Protocol lets you move between management platforms rather than being tied to one vendor. For workplaces it also handles billing, access control and load sharing across multiple chargers.

Read more before you book

Service

Commercial Electrical →

 Service

Project Work →

 Guide

Will my switchboard take an EV charger? →

 Guide

7kW vs 22kW: which EV charger do you need? →

 Guide

What triggers a switchboard upgrade? →
Get started

Get a free quote with the load calc, the cable sizing and the compliance shown.

Tell us what you need. We book a site assessment and send a scope sheet you can actually read, not a one-number text.

✓ CEC Accredited✓ NSW Electrical Contractor✓ Licensed & insured to $20M✓ 214 five-star reviews✓ 10-year workmanship warranty
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