The charge for Capacity and Firm Energy from the Project shall be composed of two separate charges; a charge to provide for the basic revenue requirements, as identified in paragraphs (b), (c), and (d) of §904.5 of these General Regulations (Base Charge), and a charge to provide the surplus revenue for the Lower Colorado River Basin Development Fund contribution, as identified in paragraph (e) of §904.5 of these General Regulations (Lower Basin Development Fund Contribution Charge).