Solar+Storage for Household Back-up Power: Implications of building efficiency, load flexibility, and electrification for backup during long-duration power interruptions

Solar+Storage for Household Back-up Power: Implications of building efficiency, load flexibility, and electrification for backup during long-duration power interruptions

December 07, 2023

This webinar highlights findings from a Berkeley Lab report exploring the evolving role of solar+storage in backup power applications, as homes become more efficient, flexible, and electrified. The study focuses specifically on backup power during long-duration (>1-day) power interruptions for single-family homes. It relies on NREL’s ResStock building modeling platform to create statistically representative distributions of the existing building stock in ten locations across the United States. It then shows how the amount battery storage required for backup power rises or falls as a series of building envelope efficiency, load flexibility, and electrification measures are applied across the building stock in each region. It also includes sensitivities to show how backup power requirements are impacted by the timing and duration of power interruptions, and also explores variation in backup power requirements across the building stock within each study location. The study, published in slide-deck format, is titled “Solar+Storage for Household Back-up Power: Implications of building efficiency, load flexibility, and electrification for backup during long-duration power interruptions.”

We thank the U.S. Department of Energy Solar Energy Technologies Office for their support of this work.