Our customer billing inserts keep you informed of new programs, upcoming changes within the industry, and any other information that is important to you. View our most recent billing insert here. Image View billing inserts by selecting from the list below. Billing Inserts February 2023 - Tree Power Program April 2022 - Power Play Contest February 2022 - Tree Power Program May 2021 - New Electricity Prices Effective May 2021 February 2021 - New Electricity Prices February 2021