SPF Institute for Solar Technology

  • Germany: Vacuum Tube Collectors withstand 40 mm Hailstones

    Germany: Vacuum Tube Collectors withstand 40 mm Hailstones

    The extra-thick double-glass vacuum tubes by German company Soltark have survived a test with 40 mm hailstones at the Swiss test institute SPF Solartechnik in Rapperswil. A systematic investigation of vacuum tubes at SPF Rapperswil two years ago showed that most of the 26 tested...

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  • European Facilities Testing Products for the US Market

    European Facilities Testing Products for the US Market

    Accredited for SRCC testing: The SPF Institute for Solar Technology from Switzerland is one of six European testing institutes being able to test collectors according to quality standards by the US-American Solar Rating & Certification Corporation.
    Photo: SPF Rapperswil...

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