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 energiesparen@uni-hannover.de 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. Further information regarding correct ventilation in connection with the pandemic can be found in our Corona FAQ section at https://www.uni-hannover.de/de/universitaet/aktuelles/corona.

  • 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: greenoffice@zuv.uni-hannover.de

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

    Operating private fan heaters, cooling devices or dishwashers is no longer permitted from 1 October 2022.

  • 1.3.2 Is funding available for replacing equipment with an outdated energy efficiency class?

    Many refrigerators at LUH have an outdated energy efficiency class. The Green Offices therefore encourages LUH members to replace these refrigerators. Replacing such equipment can be funded with up to 100 percent of eligible expenses. Learn more

    Additional energy saving measures can be financed via the university’s fund for individual energy saving measures. (see FAQ section 2.6)

  • 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 energiesparen@uni-hannover.de.

  • 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 energiesparen@uni-hannover.de. 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

3. Teaching and learning

4. Research

Contact details

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