Parabolic trough power plants can make a significant contribution to a sustainable energy supply. Driven by the requirements of cost reduction and performance improvement progresses, the development of solar trough collectors continued steadily. Flagsol as a pioneer is substantially responsible for the current success of this technology. To maintain its strong market position in the parabolic trough technology, the HelioTrough® collector has been developed.

Goals for developing a new Collector:

Cost reduction by

  • Increasing efficiency
  • Increasing size
  • Reducing number of parts (mirrors, Heat Collecting Elements (HCE), steel parts, drives, swivel joints, control systems etc.)
  • Reduction of assembly and alignment costs
  • Reduction of maintenance costs
  • Increasing lifetime


The HelioTrough® parabolic trough collector can either be offered as a complete product, and / or licensed to third parties for construction.