English  Sprachen Icon  |  Gebärdensprache  |  Leichte Sprache  |  Kontakt

Aktuelles aus den Elitestudiengängen

Energy-efficient with LED Lighting Technology: Acceptance is the Key to Success

Besides the integration of renewable energy sources, enhancing energy efficiency plays a crucial role in the German energy transition. Global Change Ecology student Stefanie Löcherer completed a 3-month internship at the Institute for Resource Efficiency and Energy Strategies (IREES).

Stefanie Löcherer (front) with the IREES-Team

She reports: "The Karlsruhe-based institute conducts interdisciplinary research in selected fields of sustainable resource use, with a focus on energy efficiency and low emission production processes. During my stay, I worked in a project which evaluated the satisfaction with LED (Light Emitting Diode) lighting technology in the context of school buildings.According to the International Energy Agency (IEA), lighting is responsible for almost 20% of the worldwide energy consumption and considerable amounts of greenhouse gas emissions (GHG). Globally, lighting stocks are still dominated by inefficient incandescent light bulbs in households and fluorescent lamps in the services and commercial sectors.
LEDs are a potential remedy for this waste of energy in terms of lighting, given their low energy consumption, high luminous efficiency and controllability as well as high quality of light. To obtain the necessary basis for a broad market launch of this climate-friendly technology, given obstacles to its diffusion have to be overcome. One of these obstacles might be the lack of acceptance from potential users and the general public.
During my internship at IREES, I worked in a project which investigated the refurbishment of schools with energy-efficient LED lighting systems. The focus was on the subjective quality and satisfaction of students and teachers with this climate-friendly technology. More than 4500 students were surveyed in a total of 33 schools, before and after the refurbishment of the classrooms with LEDs.
The results of the study give important insight into the effects of LED refurbishments in schools and on how they change the perception of indoor quality in classrooms. LED-retrofitting has a large, but often untapped potential to be used for educational purposes and promotion of energy efficient lighting outside the school building. To support teachers in using the refurbishments as a leverage point to inform students about energy efficiency, special training material about LEDs was developed within the project. The teaching material as well as the report of the LED study be available soon on the IREES homepage.
Besides the statistical analysis of the survey results, I had the opportunity to test the preliminary teaching material on LEDs during a three-day workshop for students in a comprehensive school. It was a great experience to get immediate and straightforward feedback from the students about the content and design of the lessons. Further tasks during my stay in Karlsruhe included, but were not limited to writing reports for schools on their individual study results for public relations work, as well as translating for the company homepage. Currently, I am working on a paper with my colleague which will hopefully be published in a journal in the field of environmental psychology in the near future."

By Stefanie Löcherer, Elite Graduate Program Global Change Ecology (GCE)

veröffentlicht am