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v2026.1714 entries · CC-BY 4.0
Dictionary termTrack EStablev2026.2

Cold-storage energy (research)

The electrical energy consumed by research cold-storage equipment (-20 degC freezers, -80 degC ultra-low temperature freezers, liquid nitrogen Dewars, cold rooms) used to preserve biological, chemical, and reagent samples.

ByCASRAI Editorial Board
· Last updated 21 May 2026

Examples

Worked examples

  • Is an instance

    A genomics core facility consolidates 14 freezers down to 9 by archiving old samples, saving an estimated 56 MWh per year.

  • Is an instance

    A sustainability office subsidises replacement of 1990s freezers with ENERGY STAR units and tracks per-PI kWh reduction.

Counter-examples

Looks similar, but isn't

  • Not an instance

    A cafeteria walk-in refrigerator is not research cold storage.

  • Not an instance

    Laboratory HVAC for fume cupboards is energy-intensive but not cold storage.

Editorial commentary

Cold storage is one of the highest per-unit energy consumers in modern research, with a typical -80 degC ULT freezer drawing 16 to 22 kWh per day, comparable to a household. Energy-reduction strategies include warming the setpoint from -80 to -70 degC (saving roughly 30 percent), defragmenting and consolidating samples, replacing old units with ENERGY STAR or ACT-rated models, and operating sample-sharing platforms to reduce duplicate storage. Many institutional carbon-reduction plans treat cold-storage energy as a flagship intervention because savings are measurable and politically visible.

References

  • International Institute for Sustainable Laboratories Freezer Challenge data; ACT label database (CEEL).

Also known as

ULT freezer energy · Cold-chain research energy

Machine-readable encodings

Use in your systems

JATS XML <role> element
xml
<role vocab="credit"
      vocab-identifier="https://casrai.org/dictionary/"
      vocab-term="Cold-storage energy (research)"
      vocab-term-identifier="https://casrai.org/dictionary/term/cold-storage-energy-research" />
Schema.org DefinedTerm (JSON-LD)
json
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  "@type": "DefinedTerm",
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  "identifier": "https://casrai.org/dictionary/term/cold-storage-energy-research",
  "description": "The electrical energy consumed by research cold-storage equipment (-20 degC freezers, -80 degC ultra-low temperature freezers, liquid nitrogen Dewars, cold rooms) used to preserve biological, chemical, and reagent samples.",
  "inDefinedTermSet": "https://casrai.org/dictionary/domain/sustainable-research-and-laboratory-operations/",
  "url": "https://casrai.org/dictionary/term/cold-storage-energy-research",
  "sameAs": [
    "ULT freezer energy",
    "Cold-chain research energy"
  ],
  "license": "https://creativecommons.org/licenses/by/4.0/"
}

Adopted by research universities worldwide

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