POWER GENERATING UNIT RELIABILITY AND ENERGY REPLACEMENT COST.

This paper describes an on-line computer application for monitoring economic loading of power generating units that are load dispatched by incremental cost methods. The reliability of the unit to produce its scheduled economic load and the hourly costs incurred for deviations from that load are computed and tabulated daily by the System Operations Computer. Each month a reliability bargraph which includes summarized daily results is produced by a timeshare computer program. Computer results have indirectly reduced costly off-schedule generation by enabling management to better appraise generating units operations.