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How to save energy in the labs and offices

Here are some energy saving tips for your everyday lab and office life. To be continued.

Easy measures for labs and offices

  • Keep doors closed for efficient technical ventilation and heating
  • Switch on devices only when and for as long as needed and avoid stand-by mode
  • Activate "Hibernate" mode on all computers (LMU insider: currently not possible for “MWN”-computers)
  • Only "quick airing" of room (no windows permanently open), during which thermostat is put on position 1
  • For all LMU buildings: Set radiator thermostats to max. 19°C (≈ position 2.8)
  • When leaving:
    • Set radiator thermostats to position 2
    • Close windows
    • Devices and lights off

Freezer and fridge management

All freezers and fridges

  • Organize and clean out your samples
  • Reduce opening times
  • Keep clear of ice
  • Reduce the number of freezers and fridges

Ultralow temperature freezers

  • Setting ULT freezers to -70 °C instead of -80 °C can save a lot of energy
  • ”-70 is the new -80”: check out resources of My Green Lab regarding ULT freezers and what impact changing the temperature has:
  • Click here for a list of samples successfully stored at -70°C provided by e.g., UC Boulder
  • Defrost regularly
  • Regularly vacuum the condenser filter and coils to ensure efficient cooling

Deep freezers (-20°C)

  • BMC Green Lab Initiative observed that -20 °C freezers are often colder than their settings (e.g., a freezer set to -21 °C was at -26 °C)
  • Freezers colder than -20 °C (when set to -20 °C) can be turned up to save energy
  • Regularly organize and defrost freezers (at least twice a year)

Chemical fume hoods and biosafety cabinets

  • Close fume hood sash whenever not in use (fume hoods demand a large amount of energy)
  • Switch off biosafety cabinets whenever not in use (especially at the end of the day)
  • Coordinate the work in biosafety cabinets (e.g., with time tables)


Download handout with tips in German / in English (PDF, 300 KB)