To link another account to your profile, simply sign in to Your Account and select EDIT PROFILE & ALERTS (yellow button at the top of the page). This will bring you to the PG&E Preference Center. From there, scroll down to Account Services. Under Accounts Linked to My Profile, select Link Accounts. You can link up to 100 accounts to your profile in two ways: Select from a list of your accounts or enter an account number.
If you choose to enter an account number, enter it in the format 1234567890-2 and verify your account with your phone number on record, last 4 digits of your social security number, or last 4 digits of your TAX ID number.