 The City of Los Angeles has need for capacity to meet its peak requirements ranging from 3 to 6 hours per day in the winter to 6 to 10 hours per day in summer, depending upon climatic conditions.The water which normally flows through the West Branch of the State Aqueduct during off peak periods, is stored in the higher level Pyramid Lake.This water can be channeled through the turbine generators in a very short time to immediately meet short time peak demands on the DWP's electric system.