You should get the Black and White bill in the mail, or you can dig it out of your PG&E online account.
In the title bar after you log in on the pge.com web site, look for a pull down box with your account number. Pull down the box and select My Accounts and Services.
On that page you will see a list of your Service IDs. Click one of the Service IDs. You will see the list of Service IDs again in a table with the Service Details listed below. Look for Download Detail of Bill at the bottom. If that is not displayed, look in the table for the Service ID with Available listed in the last column Detail of Bill and click the corresponding radio button.
Pull down the list of bills next to Download Detail of Bill and select one to download.
That is how you download the Paired Storage black and white bill.