Be SMART – Do more with less: Information on saving energy

Be Smart - Do more with less Be Smart - Do more with less Be Smart - Do more with less

In view of the energy crisis and the associated cost increases, higher education institutions in Germany as well as businesses and private individuals have been asked to reduce energy consumption significantly. All LUH members – both staff and students – can contribute to achieve this goal. “Be SMART – Do more with less” applies to all of us. The acronym SMART stands for “Sparen, Mitmachen, Ausschalten, Reduzieren, Tauschen” (save, contribute, switch off, reduce, replace). The Presidential Board has already implemented measures and previously provided information on these measures. The following FAQ section provides an overview as well as further information on saving energy. Please send an email to in case of any further queries, ideas or suggestions.


1. Buildings and equipment

  • 1.1 What regulations apply with regard to heating at LUH?

    In accordance with regulations issued by the federal cabinet, the heating temperature in all university buildings and premises will be lowered to 19 °C, where possible. There are no plans to turn off the heating in offices entirely. When heating your office or workspace, please close any doors and make sure that radiators are not blocked by furniture. During weekends or public holidays, the heating will be lowered centrally.

  • 1.1.1 How is the temperature lowered centrally and what do I need to consider?

    Currently, LUH is mainly supplied with heat via enercity's district heating network. The heating is controlled centrally via the building management system. Flow temperatures are controlled via optimised heating curves and depending on current outdoor temperatures. Scheduled night setbacks too are initiated centrally, via the building management system.

    To maintain the specified maximum room temperature of 19 °C, all radiator thermostats must be in position “3”. Otherwise, adjacent rooms may not be supplied with sufficient heat.

    If you prefer cooler temperatures, you are free to choose between positions 0-3 of the radiator thermostat while in the office.

    In unoccupied rooms (during weekends or vacations), radiator thermostats must be in position “2” in order to maintain the required minimum temperature within buildings.

    Information on radiator thermostat positions:
    Position “2” (position “3”): If the room temperature reaches approximately 16 °C (19 °C), the thermostat prevents the inflow of new heated water, therefore saving energy.
    Thermal loads in the room (people, machinery, etc.) as well as solar irradiation also contribute towards heating the room.

  • 1.2 How do I air rooms correctly in winter?

    Tilting windows over an extended period of time during the heating period considerably increases energy consumption. Instead, rooms should be aired thoroughly three or four times per day by opening windows completely for three to ten minutes. When airing rooms, please close the doors and turn off the heating.

  • 1.2.1 How are ventilation systems in lecture halls and seminar rooms operated correctly?

    In rooms equipped with ventilation systems, ventilation should be switched on before the start of the session.

  • 1.3 How can I determine the power consumption of appliances?

    The Green Office temporarily lends measuring devices to all LUH staff members in order to determine the power consumption of individual appliances. The devices can be plugged into sockets to measure the power consumption of electrical appliances connected to the measuring device. A set of five measuring devices can be borrowed over a period of two weeks. Contact information:

  • 1.3.1 Which electrical appliances are no longer allowed to be used at LUH?

    Operating fan heaters is not permitted. In addition, operating private cooling devices or dishwashers is not permitted.

  • 1.4 What regulations apply with regard to exterior lighting?

    The energy-saving regulations of the federal government prohibit exterior lighting of monuments and buildings for purely aesthetic reasons. At LUH, this explicitly includes prestigious events.

    Moreover, the Buildings Management Department assesses which exterior lights can be switched off without causing security issues. In case of any issues regarding exterior lighting, please send an email to

  • 1.4.1 Can the lighting in my office be adapted to LEDs?

    In offices and workspaces at LUH, expenses for replacing the lighting in relation to savings must be assessed individually. Please note that we are not in a position to accommodate requests regarding the replacement of lighting in individual offices since this involves a disproportionate effort and rarely results in reasonable amortisation. Instead, please consider replacing the lighting in larger areas, such as an entire corridor or the entire institute. Requests may be submitted by sending an email to Due to the large number of enquiries, delays may arise. Thank you for your patience.

  • 1.5 Where can I report malfunctioning equipment, such as radiators or devices?

    Malfunctioning radiators and other faulty devices at LUH can be reported by calling +49 511 762 - 4440. Due to the large number of enquiries, delays may arise. Thank you for your patience.

2. Working at LUH

  • 2.1 Can LUH ask members of staff to work from home or to telecommute in order to save energy?

    The agreement on working from home and telecommuting applies. Alternative arrangements have been determined for the end of the year: From 19 December and wherever possible, all members of staff should work from home. This period will not count towards the individual telecommuting quota. On-campus operations will be resumed on 9 January 2023. Further information can be found in FAQ chapter 5.

  • 2.2 Will LUH cover additional energy costs resulting from telecommuting / working from home?

    LUH as an employer cannot be charged for energy costs in connection with telecommuting / working from home.

  • 2.3 How can I save energy if I am not in the office, e.g. at the end of the working day or during vacations?

    Computers and monitors should be switched off outside of working hours. Devices should not be left in standby mode. Network printers can be switched off. Network printers must always be switched off via the off switch. Pulling the power plug may damage internal hard disks. For the same reason, using time switches in this context is not permitted.

    With regard to heating, please refer to FAQ section 1.1.1.

  • 2.4 What do I need to consider when using multiple socket extension leads?

    Multiple socket extension leads that can be switched off can help saving energy. By switching off all connected devices at the same time, unnecessary stand-by operation can be avoided.

    Each multiple socket extension lead has a maximum power output, which must not be exceeded. Individual specifications can be found next to the on/off switch or on the underside of the device. High-powered devices must be plugged into separate wall sockets. Multiple socket extension leads should be accessible and must not be plugged into other multiple socket extension leads, due to fire safety risks. For outdoor use or in damp locations, multiple socket extension leads require a protection class of IP 44 or higher.

  • 2.4.1 Can multiple socket extension leads be procured from central funds?

    Due to the increased demand, the Green Office provides a limited number of multiple socket extension leads free of charge, available for interested members of staff or institutes and departments at LUH. Only one multiple socket extension lead per person can be obtained to be used in offices. A maximum of five multiple socket extension leads per institute or department will be issued. Collective orders are possible. The offer is subject to availability. There is no entitlement to receive multiple socket extension leads.

    Contact information:

  • 2.5 Should I always switch off the light when leaving a room?

    In offices, meeting rooms, kitchenettes and sanitary facilities, the light should be switched off when leaving the room. Individual rules apply in halls and laboratories, depending on the types of light sources.

  • 2.6 Is funding available for energy-saving measures?

    The university provides funding for individual energy-saving measures. If ideas and measures increase the energy efficiency of research and institute operations and if these investments pay back within a reasonable period of time, they can be funded with up to 100 percent of the purchase price. Further information can be found at

    The Green Office will be happy to provide guidance on this:

3. Teaching and learning

4. Research

Contact details

Queries, ideas, suggestions
Queries, ideas, suggestions
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