zappi & OVO Charge Anytime

Overview

OVO Charge Anytime is a type-of-use add-on to customers home energy tariff that enables eligible EV drivers to charge when the grid is at its greenest and cheapest. If you're using a myenergi zappi, you can connect to this service in one of two ways:

  • Vehicle-based integration – where charging is controlled via your electric vehicle (EV) through its internet connection.
  • zappi-based integration – where the zappi device communicates with OVO through the myenergi cloud to manage charging directly.

The integration method you use depends on your zappi model, firmware version, and preferred control method. 

Note

Vehicle integration is ideal if your zappi is not internet connected and your EV already supports smart charging. If you have a zappi 2.1 or GLO and want solar optimisation zappi integration is the recommended route.

Compatibility and Configuration Summary

Configuration Vehicle Integration zappi Integration
zappi version All versions supported zappi 2.1 & zappi GLO only
Firmware version Any V5.733 or later
Internet connection at zappi Not required Required (must be stable)
zappi mode Fast N/A
zappi schedules Must be removed N/A
Solar divert Not supported OVO controlled (Solar CT clamp required)
Minimum Green Level N/A N/A
Pin lock Must be disabled or Charge set to "On" Can remain enabled but must be unlocked
Grid CT clamp Required
myaccount login Not required Required (email does not need to match OVO)
Smart schedules in myaccount Must be removed N/A
OCPP Must be disabled if supported N/A
Time and date No requirement Accurate time/date required
Vehicle schedules Must be removed Must be removed
Vehicle internet connection Required Not required
Home Assistant Control via Home Assistant is strongly discouraged
zappi Integration – Joining

To connect your zappi to OVO Charge Anytime:

  • You must use the same login method during onboarding as you use for the myenergi app. It does not need to match the login you use for the OCO Charge Anytime app.
  • Ensure your zappi is a 2.1 or GLO with firmware version 5.733 or later
  • Confirm a stable internet connection is available at the zappi

Important

If your login method does not match what is used in the myenergi app, the onboarding process may fail.

Firmware updates for zappi 2.1 must be applied manually. For zappi GLO, updates are automatically pushed when the unit is online.

zappi Integration – Expected Operation

Once successfully connected, your zappi will switch to Managed Mode. This means:

  • Charging schedules and boost controls are managed entirely via the OVO app
  • Local changes such as scheduling or mode switching will be disabled
  • Manual boost remains available on the device if the internet connection is lost

OVO will create a schedule based on grid demand and your charge preferences. This may include charging at varying power levels or with intentional breaks. If you have a Solar CT clamp, solar generation will also be factored into scheduling decisions.

Troubleshooting

I cannot join

  • Is your firmware updated to 5.733 or later?
  • Do you have a Grid CT clamp correctly installed?

Onboarding fails in the OVO app

  • Ensure your myenergi login method matches what you’re using in the myenergi app
  • Log out and back into the myenergi app to verify access
  • If your devices appear correctly, onboarding should succeed

My vehicle didn’t charge as expected

  • If the zappi displays "Charge delayed", your vehicle may not be accepting the charge
  • Ensure all charging schedules are cleared from the vehicle
  • Some vehicles do not wake for remote charge signals—please consult your manufacturer
  • If you use pin lock, ensure it was unlocked at the time of the charge

Why is my vehicle charging during the day?

This is likely intentional. OVO schedules charging when wholesale energy prices are lowest, which may be during the day in periods of high renewable generation.

The zappi drained my home battery

zappi cannot currently communicate with third-party batteries. If OVO schedules a daytime charge, your battery may attempt to supply that load. You have a few options:

  1. Disable your battery during expected zappi charging times
  2. Move your battery’s Grid CT clamp so it does not see the zappi load (requires an electrician)
  3. Consider using a libbi, which can differentiate between home and zappi energy usage

Note

Altering CT clamp positions should only be done by someone who fully understands your electrical system—typically a qualified installer or electrician.

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