As part of our ongoing efforts to save energy and promote sustainability, we invite you to participate in the Freezer Challenge.
Although the recommended temperature for long-term storage of biological samples is -80°C, research is currently being conducted and discussions are underway regarding the possibility of changing the freezer setpoint from -80°C to -70°C to save energy.
To date, there is no clear indication of whether a temperature change is harmful to samples, but research suggests that a 10°C change should not affect most samples. A practical example can be found at the University of Colorado Boulder, where currently half of the -80°C freezers operate at -70°C. This demonstrates that such adjustments are feasible and can result in significant energy savings.
HOW MUCH ENERGY SAVINGS?
An -80°C freezer consumes approximately 20–30 kW per day, equivalent to an entire household. Changing the temperature will reduce energy consumption by 30% and save money for both research groups and the faculty.
| THE FIRST RESULT HAS ALREADY BEEN ACHIEVED!In collaboration with the research groups AST, DBE, and NBP, it has been decided to switch off the freezer in Zuid Horst, resulting in a saving of 6000 kWh and 1400 euros in costs per year! |
HOW TO PARTICIPATE IN THE CHALLENGE?
The Freezer Challenge runs throughout April 2024. We encourage research groups to use this challenge as a trial to change the temperature of their freezers. Completing the challenge will be rewarded; the success of your research group will be showcased on GreenHub's platforms and reported to the faculty.
Let's work together towards a more sustainable future for our research environment.
