Lighting technology to reduce light pollution
Change to LED street Lighting on the Island of Samsø
Through an ELENA funded project the municipality of Samsø has
analysed the street lightning in the central village of Tranebjerg (population:800) in order to assess whether the lighting should be replaced with more environmentally friendly light sources.
Based on the ELENA report the municipality has just decided to replace all mercury based light sources with LED lighting in the whole village.
Furthermore, the street lightning will be shut off in the period between 24 -06
This project is expanded and are now implemented on the whole island of Samsø, and all public street lighting are now shifted to LED and are turned off 6 hours during the night.
2.855.000 DKK (380.000€) Paid back by energy savings
Evidence of success
The project expanded from one village and are now implemented on the whole island of Samsø, and all public street lighting are now shifted to LED and are turned off 6 hours during the night. Try to be a role model showing how to save energy and diminishing of light pollution in a village – inspiration to other villages throughout Denmark and project partners
Economy and no legislation/guidelines on the area. It is apparent for us, that we must work with different policy instruments on a locally, regionally, nationally and internationally level at the same time., and have a return of investment calculation.
Potential for learning or transfer
The learning from this practice are that our focus now are at a long-term goals in different policy instruments, and to keep the awareness on the increasing loss of natural darkness which has a negative impact on biodiversity and ecosystems, as well as on the quality of nature and the environment, which is a major part of what Samsø is known for, and making the island an attractive destination for visitors. Samso has a very strong position in Denmark as a role model when it comes to green transition and green policy making in general. That puts a strong national attention on the activities that Samsø are involved in. The reasons why other regions could adapt this good practice is, besides the finansiel benefits of saving energy and money, a short payback period and a longer lifespan of the lighting, is by long term planning to get better quality of light and also prevent light pollution and set a good example for the citizens of the region, when they install new light at their homes.
Please login to see the expert opinion of this good practice.