According to DF, BEHL is in the business of exploring all the profit potential of Algae, not just simply making and selling PBR's which is really a ridiculous idea all together. The more PBRs I see in videos and news articles the more I realize that any joe blow with some tools could cobble together a pretty efficient PBR because the Algae do all the work.
BEHL should sell, install, maintain, manage, etc... PBR systems as long as people are willing to pay them to do it, but they should also concentrate the bulk of their efforts into growing Algae.
Think about this, if BEHL really does have the most efficient process on earth, they should strike now and start cranking out the algae in such huge quantities with their proprietary systems that it's virtually impossible to compete with them in at the least the region they service. Nobody sells everybody else the best process, they use the best process to capture and keep market share.