Installing your charging infrastructure
Most workplaces with electric vehicles in their fleet will generally install Smart alternating current (AC) charging at parking spaces at their premises. AC charging costs less than direct current (DC) charging (in capital and operating costs) and generates less emissions than DC fast charging.
Consider the software management packages that go with the smart charging stations to help you manage fleet charging, including impact on peak electricity demand and allocation of charging costs.
The Energy Efficiency and Conservation Authority (EECA) and Standards New Zealand have published guidance for commercial electric vehicle charging.
Some charging infrastructure providers will manage the installation process with you. The key elements of the process are:
- Site energy efficiency – Improving general energy efficiency at the site frees up capacity for electric vehicle charging and avoids unnecessary capacity upgrades.
- Network upgrades – If there is insufficient network capacity at your site (after improving the energy efficiency), request that your local lines company upgrade the network. This step of the process may take the longest.
- Identify parking spaces for charging electric vehicles – Consider selecting adjacent parking spaces and the distance from switchboards to reduce cabling and the overall installation costs. The parking spaces should be for electric vehicle charging only and clearly signed.
- Select installers with electric vehicle charging infrastructure experience – Select electrical contractors with experience in installing electric vehicle charging infrastructure. You may also need civil contractors for cable trenching and other site works.
Electricians and electric vehicle chargers (including installation) are not covered under any current All-of-Government agreement. You’ll have to follow your agency’s internal procurement policies and processes for these works and services.
Portable charging cables
Each electric vehicle in your fleet should have its own portable cable to connect the vehicle to the AC charging station at your site and public AC charging infrastructure away from base. No special cables are needed to use DC chargers, as these have tethered cables.
Keep the cables in the boot of each electric vehicle, identified with the electric vehicle's number plate and a phone number in case cables are accidentally left behind.
Charging of staff members’ personal vehicles
Don’t encourage staff members to drive to work in their own vehicles. Where staff have limited transport options, you may consider allowing staff to charge their personal vehicles at work at their own cost.
Managed Smart AC charging options for fleets can also be used to bill private electric vehicle owners directly for their workplace charging.