Abfarad -

To create a standard parallel-plate capacitor of would require physical dimensions far exceeding anything achievable on Earth.

Because it is such an enormous value, it was never practical for standard electrical applications and remains a historical curiosity. For perspective: abfarad

The (abbreviated abF) is an obsolete unit of capacitance from the centimeter-gram-second (CGS) electromagnetic system of units. It is equivalent to 10910 to the nineth power To create a standard parallel-plate capacitor of would