Key features of Proterro's patented photobioreactor are:

  • Collapsible low-cost polyethylene cylinder
  • Made from off-the-shelf materials
  • Naturally sheds rain and snow
  • Favorable aerodynamic shape for wind loading
  • Patented cyanobacteria grow on vertical fabric panels
  • Water and nutrients drain by gravity on panels
  • CO2-augmented air, or flue gas inflates cylinder
  • Natural low point for condensate drain
  • Can be UV stabilized
  • Withstands category 1 hurricane winds

Wind Test

Watch wind test video

Note: In May 2014 the USPTO issued to Proterro a patent protecting the photobioreactor.