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Can Charge HQ manage demand charges from EV charging?

This page contains instructions for configuring
chargers with Charge HQ
Please refer to our
charger listing for details on supported models and charger specifications.

A number of electricity suppliers are starting to introduce demand charges. Demand charges are a fee which is calculated from the maximum power draw from the grid in a given period (often monthly or quarterly). In some areas you will be able to opt-out of demand chargers, whilst in others they will be mandatory. Check with your energy retailer or distribution network.

EV charging may on its own, or in combination with other home loads contribute to periods of peak demand on your homes energy supply.

Charge HQ cannot automatically manage EV charging to minimise demand charges currently.

Tips for limiting demand charges due to EV charging

  1. Charge your EV from solar. Using your own solar to charge your EV avoids any grid imports so it won't contribute to demand charges.
  2. Most demand charges only apply to peak demand periods, the exact times vary between distribution networks but they seldom apply outside of 2pm to 10pm. Avoiding charging from the grid during these periods will reliably avoid your EV contributing to demand charges.
  3. Schedule grid charging to occur overnight whilst other loads are turned off and demand charges are not in force.
  4. If your EV charger on its own is the highest load appliance you have, and you have to charge during peak periods, consider setting the max charge amps to a lower level.

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