Solar Pump Association Switzerland

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The Solar Pump Association Switzerland (SoPAS) was founded in October 2013 by a group of development and technology experts with the goal to promote the dissemination and commercialization of a small-scale solar powered water pump called „sunlight pump“.


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Thematic expertise

Water for people

  • Rural/ semi-urban water supply and sanitation
  • Urban water supply and sanitation
  • Water technologies (water supply and treatment)
  • Operation and maintenance, monitoring (soft aspects)
  • Financing

Water for food

  • Irrigation techniques (e.g. efficiency of irrigation technologies)
  • Operation and maintenance of infrastructure (soft aspects)
  • Supply chains & commercialization

Water for other uses

  • Adaptation

Geographic expertise

Contact Person

Karin Imoberdorf -


  • Sunlight pump

    The sunlight pump is a highly efficient portable solar water pump for small-scale irrigation and domestic water supply. It is an affordable technology that combines environment-friendliness and low maintenance costs with income, productivity and labour-saving benefits. The sunlight pump was developed by professors and students from the Berne University of Applied Sciences in Biel.
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