The study investigated the effects of a Loss Reduction Program on the system losses of an electric cooperative (MORESCO-1) in Northern Mindanao. The study used the descriptive design involving documentary analysis of historical data. The statistical technique used were the frequency, percentage, mean and t test. We concluded that the loss reduction program was effective in bringing down significantly the system losses from 9.02 percent to 7.65 percent. The member-consumers benefited from the reduction of power cost by P3,888,440.76, which represents good savings. Only 25 percent of the total power cost of the consumer goes to MORESCO-1 to support its operations.