In the A320, the EMER ELEC CONFIG occurs when both the main generators fail or when an associated bus is unpowered. In such situations, the aircraft relies on the emergency generator, which provides limited electrical power to essential systems.

Fuel Penalty Factor (FPF) for the Emergency Electrical Configuration (ELEC EMER CONFIG) in the Airbus A320 is below 3%, which is considered relatively low compared to other failures listed in the FPF table. Value below 3%, in general, indicats that the increase in fuel consumption associated with this emergency configuration is relatively minor compared to other failures. Therefore, while there may be a slight increase in fuel usage, it is not significant enough to be a primary concern during the management of the emergency.

The primary focus shifts to LAND ASAP.

P.S. The FPF values provided in the QRH tables are described as conservative guidelines meant to increase flight crew awareness and aid decision-making. However, they are not absolute rules but rather tools to assist pilots in assessing the situation. Again, In the case of ELEC EMER CONFIG, where the FPF is below 3%, the conservative nature of the guideline suggests that it is not a major factor influencing decision-making.