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<br /> <br />. <br /> <br />130/: <br />136 <br /> <br />iI <br /> <br />METROPOLITAN WATER DISTRICT <br /> <br />District in maintaining the highest practicable power factor and <br />minimum peak demand. <br />Energy is sold at the rate of one cent per kw-hr, provided the <br />average power factor of the consumer's load is 95 per cent or <br />higher. If the average power factor falls below 95 per cent, .04 of <br />a mill per kw-hr is added to the rate for each one per cent by <br />which the average power factor falls below 95 per cent. This <br />penalty for low power factor has been sufficient to induce nearly <br />all users to install synchronous motors and other equipment of <br />high power factor. The average delivered cost to consumer has <br />been about 1.03 cents per kw-hr. <br />In supplying electric power for aqueduct construction the Dis- <br />trict agrees to furnish each consumer the amount necessary for the <br />efficient and economical prosecution of his work, and to ~xercise <br />reasonable diligence in maintaining a continuous supply. The user '.1 <br />is required, whenever practicable, to make use of such power to <br />the exclusion of any other source of electrical energy, except for I <br />standby purposes, and to provide at his own expense any standby !I <br />power which he deems necessary. I <br />Operation ",,,I. maintenance <br />The construction power sj'stem has a very creditable operating <br />record. Accidental interruptions have affected only small portions <br />of the system and there have been only five general shutdowns with <br />an accumulated duration of 23 minutes due to failure of the power <br />supply at Colton. <br />The three syuchronous condensers located at District substations <br />have been operated as required to reduce the monthly power bills <br />to a minimum. The power factor of the entire District load has <br />been such that the maximum power factor discount of 10 per cent <br />has been applied to all monthly bills. In addition, excellent voltage <br />regulation has resulted from the high power factor of the con- <br />tractors' loads. <br />Up to June 30, 1938 the total power purchased by the District <br />amounted to 335,271,267 kw-hrs. Power sales for the same period <br />were 309,094,313 kw-hrs. The difference indicates the average line <br />loss of approximately 7.8 per cent. The maximum monthly con- <br />sumption of 8,890,000 kw-hrs occurred in January 1936. The peak <br />load on the system was 14,592 kilowatts in April 1937. <br />The personnel required to operate and maintain the power sys- <br />tem, make servic.e extensions and connections, and dismantle and <br />