Commercial • EV • Sydney
EV Charger for Your Sydney Business or Car Park: A Practical Guide
Commercial EV charging is fundamentally different from residential. Multiple chargers on shared power, load management, OCPP backend for billing, DNSP notification to Ausgrid or Endeavour Energy, and potentially three-phase power upgrades. Here’s what a Sydney business owner or property manager needs to know before getting quotes.
How Commercial EV Charging Is Different From Residential
- Multiple chargers on shared infrastructure. A home has one charger on one circuit. A commercial car park might have 4, 8, or 20 chargers sharing a building's electrical supply. Load management hardware is required to prevent the total draw from exceeding the building's capacity.
- OCPP backend for user billing. Workplace chargers often need to track who charges, how much, and bill accordingly — either to individual employees (salary sacrifice) or to the business (fleet cost). OCPP-compatible chargers connect to a billing platform that handles metering and invoicing.
- DNSP notification. Commercial EV charger installs in Ausgrid or Endeavour territory require network notification. For multi-charger sites, the DNSP may require a load study before approving the connection.
- Three-phase power. Most commercial sites have three-phase already. Multi-charger installations balance load across all three phases for efficient power use.
What Does Commercial EV Charging Cost?
| Configuration | Cost per port (installed) |
|---|---|
| Single workplace AC charger (7-22 kW) | $2,000 – $4,500 |
| Multi-port AC with load management (4-8 ports) | $3,500 – $8,000 |
| Multi-port AC with OCPP billing (4-8 ports) | $6,000 – $15,000 |
| DC fast charger (22-50 kW) | $40,000 – $80,000 |
| DC ultra-rapid (50-150 kW) | $90,000 – $160,000 |
Load Management — Why It Matters for Multi-Charger Sites
Dynamic load management is the technology that makes multi-charger sites viable without massive power upgrades. Instead of each charger drawing full power simultaneously (which would exceed the building's supply), a load management system monitors total building draw and distributes available capacity across the active chargers in real time.
Example: A building has 100 kW of spare capacity for EV charging. With 8 chargers installed, each can draw up to 22 kW — but not all at once. Load management throttles each charger so the total never exceeds 100 kW. If only 2 cars are charging, each gets full speed. If 8 are charging, each gets ~12 kW. This avoids a $50,000+ power upgrade to increase the building's supply.
NSW Fleet Incentives for Businesses
Two current incentives for NSW businesses installing EV chargers:
- NSW EV Fleets Kick-Start Funding: Up to $8,000 per smart AC charger for businesses transitioning to EV fleets. Applications close 29 May 2026 or when remaining funding ($3.4M of $5M) is exhausted.
- Federal Instant Asset Write-Off: Up to $20,000 per asset for eligible businesses. An EV charger install under $20,000 may qualify for immediate deduction rather than multi-year depreciation. Consult your accountant.
Frequently Asked Questions
How much does commercial EV charger installation cost in Sydney?
Single workplace charger: $2,000–$4,500 per port. Multi-port with load management: $3,500–$8,000 per port. DC fast charger: $40,000–$80,000 all-in. Costs depend on port count, power requirements, load management complexity, and whether three-phase upgrades are needed.
What is load management for EV chargers?
Dynamic load management distributes available electrical capacity across multiple chargers in real time. It prevents the total EV draw from exceeding the building's supply — avoiding expensive power upgrades. Essential for any site with 4+ chargers on shared infrastructure.
Do I need DNSP approval for commercial EV chargers in Sydney?
Yes — commercial EV charger installations in Ausgrid or Endeavour Energy territory require network notification. For multi-charger sites, the DNSP may require a load study before approving the connection. Your electrician handles the notification as part of the install scope.
Is there a government incentive for business EV chargers in NSW?
Yes — the NSW EV Fleets Kick-Start Fund offers up to $8,000 per smart AC charger for fleet-transitioning businesses (closing 29 May 2026 or when funding runs out). The Federal Instant Asset Write-Off ($20,000 threshold) may also apply. Consult your accountant.
Can employees use workplace EV chargers for personal vehicles?
Yes — with an OCPP-compatible billing backend, the employer can track individual usage and either subsidise it as a benefit or charge employees at cost. Some employers offer free workplace charging as an employee perk; others bill at a flat monthly rate or per-kWh.
What is OCPP and why do commercial chargers need it?
OCPP (Open Charge Point Protocol) connects chargers to a central management platform for billing, monitoring, and remote control. Commercial sites need OCPP to track who charges, how much, and bill accordingly — whether to employees, tenants, or the public. Without OCPP, there's no way to manage multi-user access or recover costs.
Planning commercial EV charging for your Sydney business?
We design and install multi-charger systems for workplaces, car parks, strata, and fleet depots across Sydney. Load management, OCPP billing, DNSP approval — all handled.