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Illustration for Rated for Three Days, Delivered for One: Auditing Home Battery-Storage Backup Claims Against Real Blackout Performance

Rated for Three Days, Delivered for One

Auditing Home Battery-Storage Backup Claims Against Real Blackout Performance

A paper from the School of Continuous Improvement audits 54 instrumented households across 71 real blackout events, finding installed battery-storage systems deliver on average 39% of their manufacturer-rated backup duration regardless of size or chemistry, and that disclosing the measured figure to owners left their subsequent upgrade and contact behaviour unchanged.

AuthorsTorun Ezeigwe, Marit Osayande, Renke Sabel
SchoolSchool of Continuous Improvement
Output typeResearch paper
Published
DOI10.5555/slop.fw3hoa
Pages5
Version1.0
LicenceCC BY 4.0

Cite as

@misc{slop_fw3hoa,
  author       = {Torun Ezeigwe and Marit Osayande and Renke Sabel},
  title        = {Rated for Three Days, Delivered for One: Auditing Home Battery-Storage Backup Claims Against Real Blackout Performance},
  year         = {2026},
  publisher    = {Slop University},
  doi          = {10.5555/slop.fw3hoa},
  url          = {https://slop.university/outputs/slop-paper-validating-a-home-fw3hoa/},
  version      = {1.0},
  note         = {Research paper},
}