Hi,
We are submitting this pilot credit via Option 2: Provide Backup Power for critical loads. The project building is office usage, but there is no instruction for office building regaring time duration for back-up power. We really appreciate instruction about this. Thank you.
Kelvin Chan
November 20, 2022 - 12:00 pm
WE have registered this pilot credit for our retail project in China, it is supposed to achieve this credit by onsite solar PV system.
Bipin Karki
88 thumbs up
March 14, 2025 - 11:34 am
We are submiiting this credit using bi-fuel generator.
Deborah Lucking
Director of SustainabilityFentress Architects
LEEDuser Expert
260 thumbs up
March 19, 2025 - 5:51 pm
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!