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Energy

Self-Sufficient Solar Street Lighting Solution by: Bjarne Schläger Design and Alfred Priess

The Touché streetlight combines aesthetics with solar energy that self-sufficiently illuminate public spaces around the world.

The Triple Bottom Line

Environmental The 91 million streetlights in Europe alone constitute potential for significant CO2 emission reduction if shifted to solar power. 2

Social Touché serves as a prominent sustainable technology in public spaces, thereby facilitating public awareness on renewable energy use.

Economic Replacing just one traditional lamp post of approx 100 watt/h translates into 400 kWh of electricity saved annually, according to Bjarne Schläger Design.

The Touché streetlight is designed with solar panels that discreetly cover the surface vertically from top to bottom, showcasing that sustainable public lighting can also be visually appealing. The solar panels provide enough energy for the streetlight to work without interruptions, even in countries where sunlight can be sparse. The solution requires no electrical connection, making it applicable both in cities and in countryside areas where grid access is a challenge. Producing about 2 to 3 times its own consumption, Touché can work as an energy contributor if connected to the grid. The streetlight also features intelligent communication units allowing optimal management of the individual lighting profiles by controlling movement sensors, operating data, alarms, and dimming. Why a Sustainia100 solution? The cost of street lighting for municipalities is growing due to rising energy costs and the increasing cost of maintenance and replacement.1 The Touché streetlight addresses this issue by providing a solution that is energy self-sufficient and capable of producing surplus energy for the benefit of other energy consumers in the grid. The harmonious design will also beautify urban and rural surroundings alike.

Developed: Denmark

Deployed: 15 countries, including Russia, Saudi Arabia, and South Korea 

Nishishiba, Masami. “Increasing the Efficiency of Street Lighting in the City of Sandy”. 2010.

“We create  self-sustaining  public lighting  with  integrated solar cells  and aesthetic values.”

2 Planting. “A new light on saving energy”. 2009

Bjarne Schläger, Architect MAA and innovator Bjarne Schläger Design

1

The integrated solar cells charge the battery during the day and draw on it during the evening and night. The light control system dims the light to the desired level to maximize the capacity of the battery.

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Sustainia100 2014