Commercial EV Charging Solutions for Sydney Businesses

What does a Sydney business actually need to install EV charging for staff, customers or a fleet? The starting point is always a capacity check against your existing supply, not a decision about which charger to buy. From there the real choices are AC versus DC fast charging depending on how long vehicles actually stay on site, whether load management software can share your existing capacity across several bays, and whether the network connection itself needs upgrading. Every part of that network side connection has to be carried out by a Level 2 Accredited Service Provider, regardless of how many chargers you end up installing.

1. Start with a capacity check, not a charger order

The single biggest mistake businesses make is buying chargers before finding out what their building's electrical supply can actually deliver. A power logging study, which measures real demand at your switchboard over roughly a week, tells you how much genuine spare capacity exists rather than the theoretical figure on your original design drawings. Our power logging and maximum demand guide covers how that study works and why measured demand is so often lower than the calculated figure, and our maximum demand explained guide covers how spare capacity is worked out in the first place.

AS/NZS 3000:2018 also gives standard demand allowances for car park EV charging under its energy demand method, ranging from around 5 to 15 VA per square metre for an open air car park up to 10 to 30 VA per square metre for a basement car park, which designers use for new builds where no real usage history exists yet.

2. AC or DC: matching the charger to how long vehicles actually stay

AC charging is the right fit for any car park where vehicles are parked for hours at a time, which covers most workplace staff parking and many hotel or residential visitor bays. It draws less power, costs considerably less to install per bay, and still delivers a full charge over a typical work day. DC fast charging exists for the opposite scenario, a retail centre, service station forecourt or short stay car park where a vehicle might only be on site for 30 to 60 minutes, so the charger needs to deliver far more power in a much shorter window. DC charging also draws a lot more from your supply per bay, which is exactly why the capacity check in step one matters so much before you commit to it.

3. Load management: sharing capacity across multiple bays without a full upgrade

Load management systems dynamically share available capacity across several charging bays in real time, slowing individual chargers down when demand elsewhere in the building peaks and speeding them back up when it drops. For many Sydney businesses this is what actually makes six or eight charging bays possible on an existing supply that could never handle all of them charging at full power simultaneously. Our load management guide for property managers explains the technology in more depth, though it deliberately does not cover installation mechanics, which is the electrical work covered here.

4. When a genuine network upgrade is unavoidable

Load management buys time and stretches existing capacity, but it cannot manufacture capacity that genuinely does not exist. Where a business wants a large number of DC fast chargers, or where the building's existing supply is already close to its limit before EV charging is even considered, a real upgrade becomes the only option. For small to medium commercial upgrades this usually means a Level 3 design submission to plan the new capacity correctly, followed by the physical Level 1 network construction work to bring the extra supply in. See our Level 3 design and Level 1 network installation service pages for how that escalation path actually works, and check your network area in seconds with our postcode checker if you are not sure whether you fall under Ausgrid or Endeavour Energy, since the application process differs slightly between them.

5. NSW funding for business EV charging

The NSW Kick-start funding program can cover a share of charger purchase and installation costs, but only alongside an eligible new electric vehicle purchase, it does not fund standalone charging infrastructure. Funding tiers vary by charger type and vehicle class, so it is worth checking current eligibility before budgeting a project around it. Our NSW EV Kick-start funding guide for Sydney businesses breaks down exactly what is and is not covered under the current round.

6. Metering and cost allocation for staff, tenants or fleet vehicles

Once the electrical side is sorted, most commercial sites still need a way to bill or track usage, whether that is free staff charging funded by the business, tenant billed charging in a mixed use building, or fleet vehicle charging tracked against a cost centre. This is usually handled through dedicated sub metering on each bay or a charger network's own back end reporting, both of which need to be planned alongside the electrical design rather than bolted on afterwards.

Why it's Level 2 ASP work

Any EV charging installation that increases a building's maximum demand, touches the network side connection, or requires a new or upgraded supply falls under Level 2 Accredited Service Provider work, which a standard electrician or the charger manufacturer's own installer is not licensed to carry out. This applies whether the job is a single AC charger added to an existing healthy supply or a full commercial rollout needing Level 3 design and network construction. Confirming which category your project falls into is exactly what the initial capacity check is for.

How High Demand Electrical helps

High Demand Electrical is one of Sydney's most trusted Level 2 ASPs for commercial EV charging projects, holding EC Licence 397193C and full accreditation across Ausgrid, Endeavour Energy and Essential Energy areas. We run the power logging study, size the right mix of AC and DC charging for how your car park is actually used, and manage the Level 3 design and network application where a genuine upgrade is needed, all from one licensed local team rather than juggling separate contractors for each stage. If you are comparing the best EV charging installer near you for a commercial site, look for genuine Level 2 ASP accreditation rather than a general electrician who has only ever fitted home chargers.

Related reading: EV Fleet Depot Charging for Sydney Businesses.

Get a Commercial EV Charging Quote from one of Sydney's most trusted Level 2 ASPs, or call 0402 559 777. Every commercial EV project needs a site assessment and, in most cases, a power logging study before scope and pricing can be confirmed.