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2021 NIH Freezer Challenge Results

Eight labs and one IC participated in the 2021 NIH Freezer Challenge to improve freezer management, increase freezer reliability, and reduce energy consumption. 

The challenge was held from January 1 to May 1 of 2021. Challenge initiatives ranged from maintenance options, such as defrosting freezers, to laboratory best-management practices, such as changing the temperature setting of Ultra-Low Temperature (ULT) freezers from -80°C to -70°C. Changing the temperature setting of an ULT freezer from -80°C to -70°C reduces the amount of work that the compressor does, which increases freezer reliability and reduces energy consumption by about 20%. These results show the power each lab has to incrase freezer reliabilty while also protecting the environment. Imagine what we could do if the entire NIH joined in! Participate in the 2021 Freezer Challenge to help out!


                 2021 NIH Freezer Challenge Participants
IC LAB PI Freezer Challenge POC
NCI Laboratory of Cell Biology Michael M. Gottesman, M.D. Barbara Murphy, M.S., M.T.
NCI Molecular Oncology and Gene Transfer Section Dennis Hickstein, M.D. Thomas Bauer, Ph.D.
NEI Laboratory of Immunology, Molecular immunology Section Charles Egwuagu, Ph.D. Cheng-Rong Yu, Ph.D., M.D.
NHLBI Laboratory of Myeloid Malignancies Christopher Hourigan, M.D., D.Phil. Chidera Nosiri
NIAID Viral Epidemiology and Immunity Unit Leah Katzelnick, Ph.D., MPH Ana Coello Escoto
NIDDK Genetics and Metabolism Section of LDB Caroline C. Philpott, M.D. Minoo Shakoury-Elizeh
NIEHS RTP Campus Freezer Replacement Initiative  Kerri Hartung/Paul Johnson
NIEHS In Vivo Neurobiology Guohong Cui, M.D., Ph.D. Amy Papaneri, M.S.
NIEHS Comparative Medicine Branch, Quality Assurance Lab David Kurtz, D.V.M, Ph.D. Tanya Whiteside
NIEHS Reproductive Medicine Group, RDBL Carmen Williams, M.D., Ph.D. Elizabeth Padilla-Banks
NINDS Translational Neuroradiology Section Daniel S. Reich, M.D., Ph.D. Amanda Lee


2021 Freezer Challenge Savings Table


                 2021 Freezer Challenge Initiatives 
Challenge Initiatives Total
Conduct a complete freezer defrost 60 freezers and refrigerators
Replace old freezers/refrigerators  with an energy efficient model 67 freezers and refrigerators
Discard samples that are no longer needed 30,096 samples
Retire unnecessary freezers (-86°C) 7 freezers
Retire unnecessary freezers (-20°C to -40°C) 13 freezers
Retire unnecessary refrigerators (4°C) 8 refrigerators
Maintain an electronic sample inventory 137 freezers and refrigerators
Share freezer space with other researchers 45 freezers and refrigerators
Change the ULT freezer temperature to (-70°C) 17 freezers









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