This excerpt taken from the PCG 10-K filed Feb 18, 2005.
Utility Remittance to DWR
Utility shall remit to DWR an Energy Payment for the delivery of Contract energy to Utility retail customers (including the delivery or Contract energy to WAPA) and a separate payment for DWR's share of Surplus Energy Sales Revenues. The principles for the remittances to DWR of Surplus Energy Sales Revenue and Energy Payment are contained in Sections A and B of this Exhibit C, respectively. The details for determination of the remittances to DWR by Utility are contained in the Servicing Arrangement.