To sign up for paperless billing with Arizona Public Service Company, a user typically needs to visit their official website. On the website, one may find the option for account management, which usually includes a section for billing preferences. Within this section, there should be an option to opt for paperless billing. A user will likely need to log in to their account or create a new one if they do not already have an account set up. Once logged in, the user can follow the prompts to select paperless billing, which will eliminate the need for physical statements and allow them to receive notifications via email instead. It is advisable for the user to review their account settings after enrolling to ensure that they have activated the paperless billing feature successfully. For additional information or specific guidance on the process, the user is encouraged to look for details on the relevant page of the website.