IPpc100 Passive Survivability and Functionality during Emergencies

WE have registered this pilot credit for our retail project in China, it is supposed to achieve this credit by onsite solar PV system. 

We are submiiting this credit using bi-fuel generator.

This is what I found: '"The duration over which the back-up power must be available is different than in the original credit—to align with RELi. Originally for residential buildings Credit 100 required back-up power for a full week if provided with fuel-fired generators, while three days were required for non-residential buildings relying on fuel-fired generators. Now there are different back-up power requirements for different building types, but the back-up power is required for no more than four days. Both the original and revised credit allow the length of time over which back-up power must be provided to be reduced if that power is provided with a renewable energy system and battery storage. In the original credit, with solar and battery storage the back-up power requirement dropped to 72 hours and 24 hours, respectively, for residential and non-residential buildings. With the revised credit, the duration requirement is simply halved when renewable energy (either solar or wind) and battery storage is used."
Source: The LEED Pilot Credits on Resilient Design Are Back Up!