Thanks for taking part in our trial

We really appreciate you taking the time to help us with this Trio II in-home display + app trial so that we can provide a better service to you and in time, other EDF Energy customers. We also appreciate that from time to time there may be issue or problems, please let us know so that we can fix and improve the app. Send your valued feedback to, we look forward to hearing from you. 

About the trial

The app uses data from your smart meter to show you ways to save electricity and money.

The app will let you:

✔  View your home's electricity use in near real-time

✔  See how much you're spending 24/7

✔  Pinpoint ways of saving money – straight away.

For the app to work you'll need:

✔  Wifi on at all times

✔  Your CAD to be on and connected to the wifi

✔  You need to be logged in successfully.


Service updates

Good news, everything's running smoothly with no planned interruptions or updates.

We hope to be able to include gas use on the app really soon.

Trial help and support

What if I find a problem or have issues with the trial?

As a valued customer and member of our trial, we appreciate any feedback you can provide. If you experience any issues email us on and we'll respond to you within two working days. By learning about your experiences it will help us improve the app and any further features. The trial is part of our ongoing commitment to help our customers save energy in everyday activities. 

How does the app work?

Your smart meter will collect information about the way you’re using electricity and make that information available to the Trio II in-home display + app. Costs are recorded when your home wifi and the Trio II in-home display are connected. Please note, any loss of wifi connection in the home may cause a discrepancy in the readings on the app compared to your in-home display and bill.

Will I have to change tariff?

You won't need to change tariff to take part in the trial but good news, if you do choose to change tariff during the trial, any changes to your electricity will automatically update.

Will this affect my pricing?

The tariff daily standing charge and tariff unit rates stored on your meter may not reflect the tariff you are being billed upon currently, it might pick up one of your previous tariffs. 

The app will only show your EDF Energy Daily Standing Charges historically.

The prices shown in the app are indicative to give you an idea of the energy you're using and how much it may be costing. The prices shown will not relate directly to your bill. The difference is due to varying billing periods, payment methods, modes, frequency of payments and how much you are in credit or debit by at any point.

How does live data work?

The live data automatically works in two modes: fast mode and slow mode. In fast mode, you can see how much energy you're using and how much it’s costing you. The data in this mode is shown live with a time lag of between 3 to 15 seconds. This is called a 'near real-time data view'. In slow mode, you'll be able to see hourly, daily, weekly and monthly data. 

How long is the trial?

The trial will continue for a minimum of six weeks. When a month is up, we’ll email you a survey to find out how useful you think the app is. We'll keep you informed in the app and on email of any new and exciting features throughout the trial period. You can choose to leave the trial at any time for any reason by unplugging or disconnecting the Trio II in-home display from your wifi or by uninstalling the app.

Things to note

  • Keep the app on your phone, and we’ll send you email updates about new ideas and approaches. If you’d rather not get these, please delete the app 
  • If you need support or if you want to give us some feedback please email us on
  • We hope to be able to include gas use on the app really soon
  • Remember, you can leave the trial at any point.

Contact us

If you experience any issues or have any questions, please contact us at