KWH meter reading accuracy rate is very important for the PT. PLN because it has a direct impact on customer satisfaction which ultimately could result in losses for PLN if the meter readings are not accurate figures. SIMCater is Meter Reading Management Information System designed specifically for managing all activities of the customer meter readings KWH PT. PLN. Implementation of meter reading is done by using special equipment that can integrate with existing programs on a PC. With SIMCater the meter reading accuracy rate will increase further.