What is the minimum power required to perform pressure refueling?

The minimum power required to perform pressure refueling is provided by the batteries. During pressure refueling of the Falcon 7X, it is essential to have the necessary electrical power to operate the fuel pumps and control valves. The batteries can supply this power independently of the aircraft's main power sources, such as generators or an external power source.

Using only the batteries ensures that the refueling process can occur even if other power sources are not available. This makes it a practical choice for ensuring that the aircraft can be refueled safely and efficiently without reliance on the engines, APU, or ground power.

In contrast, while external power sources and generators can provide the necessary electrical power, they are not strictly required for the process. The APU can also provide electrical power, but it is not the only method available. Thus, the batteries offer a reliable solution for maintaining operational capabilities during pressure refueling.