Rjukan in Telemark presents a unique installation, which will finally give light to the village’s inhabitants. It’s today a 100 years ago the idea of ​​a solar mirrors was born, when Oscar Kittelsen wrote in the Rjukan newspaper. The mountains surrounding the city are so high that they obscure the sun all winter, but now the world’s largest solar mirrors will bring the sun down to the valley. The sun will hit three huge mirrors, and thus reflected down to the town square. Hydrofounder Sam Eyde (1866-1940) was the first who tried to realize the idea. He wanted to bring the sunlight down to his workers, but had to give up, and instead built a cable car that could carry the workers up to the sunlight. The artist Martin Andersen brought the idea to life again in  2003 and initiated large-scale planning and research.

There have already been over 250 media stories about these mirrors, including in the New York Times, BBC, Canadian Television, CBS, and Chinese TV. On the occasion of the opening day, a local optometrist have sponsored the local school kids with 600 pairs of sunglasses.

The Solar Mirror.

  • Solar mirror or heliostat state, consists of a pillar of steel, sunshade and a washing system. The mirror must be kept clean for optimum effect.
  • It must be anchored in a concrete foundation, and the mirrors are rotated.
  • The mirrors are mounted on a surface which can be moved over a horizontal and a vertical axis.
  • Rotation and elevation of the mirror surface is done by using solar energy.
  • It must withstand wind forces and snow. It must remain still and be robust in order to avoid that a vibrating light hits the square.

 

Ref: Teknisk ukeblad