Ultra-low temperature freezers consume as much electricity annually as a typical single-family home. Hopkins laboratories can lower their lab’s carbon footprint and challenge your cold storage practices by taking part in the Freezer Challenge. Supported by the International Institute for Sustainable Laboratories (I2SL) and My Green Lab, this challenge is designed to promote best practices in cold storage management for laboratories around the world.

Johns Hopkins operates over 1,500 Ultra-low temperature freezers and even more refrigerators, standard freezers, and cold rooms that utilize millions of kWh per year. The annual challenge encourages labs to implement best practices related to cold storage maintenance, from temperature tuning (-70C is the new -80C) to removing ice buildup, that all contribute to making freezer more energy efficient.

The challenge runs through January 1, 2024 to June 30, 2024. To learn more about our other Green Labs initiatives at Johns Hopkins, please visit the Office of Sustainability website or email sustainability@jhu.edu. You can learn more about past Freezer Challenges at Johns Hopkins.