SCECO-WEST launched a pilot LMS project based on pre-investment study results. The utility has a summer peak demand, and customers were asked to voluntarily reduce their load at peak summer hours to modify the system demand profile. Initially, it was recommended that the LMS project start with the upgrade of the radio communication facility for the coverage of Jeddah and 15,000 customer alert devices (CADs). The plan was to position the CADs on customers' premises in the feeding zones where loading problems could occur on the 110-kV substations during peak summer loads. The CADs were designed to operate via a radio signal transmitted from a central control computer. At this stage, the utility planned to invite customers to participate in voluntary load control at preset times.