Unfortunately it is not possible to change your email address. If you want to use a different email for logging into the Energy app, follow the steps below:

In the app while logged in with your previous account, go to Settings > my home > users > add new user. Enter your new email address to invite, and press Next

Go to settings Account > Log out

Alternative: if you want to delete your previous account you can do this here too.

Now log in with the new email address that was just invited. In case your account is empty (no devices), make sure to switch to the correct home by pressing the home name in the top left of the home screen.

You can delete old or unused accounts via the website or the Energy app.

homewizard.com > log in with your previous account and go to > my account > account details > delete account

Energy app > log in with previous account > settings > account > delete account