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Overcoming Barriers to Energy-Efficient Lighting Three Norwegian Case Studies
Jan MoenNorwegian Water Resources and Energy Administration, Norway Harold Wilhite Ressurskonsult A/S, Norway Rich Ling Ressurskonsult A/S, Norway Abstract This paper examines three lighting conservation projects in Norway which illustrate both the potential and barriers to effective lighting. In the first case, lighting has been installed in a greenhouse used for growing cucumbers. The equipment has resulted in a reduction the energy consumption per unit of cucumbers of 34% and it has made year-round production possible. The second case study examines the installation of a lighting intensity of natural lighting levels. This system has resulted in electricity savings of up to 60% of the lighting budget for the portions of the building where the advanced systems have been installed. These efforts have resulted in a change in workers' perceptions of what constitutes pleasant lighting. In order to carry out this project, however, deeply held cultural attitudes about lighting had to be overcome. The final case study examines the installation of an energy management apparatus for street lights. The device reduces voltage in the circuit without effecting lighting quality. In the pilot project the power consumption in the test circuit showed a savings of 36%. The implementation of these projects illustrate how cultural, economic and know-how barriers inhibit lighting conservation in Norway. The authors suggest that demonstration projects are important in overcoming resistance to energy conservation in lighting. The authors also suggest that energy authorities include lighting in demand-side management programs, subsidize lighting programs and develop third party-financing arrangements in order to break down barriers.
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