This is a pretty cool hydroponics system on a barge in New York. It uses the Nutrient Film Technique (NFT) and a recirculating water system to create an incredibly efficient little farm. The crops can be more dense and ultimately more productive as well because of the control they have over the artificial environment. They can control temperature, humidity and exactly how much nutrients the plants get as well as when they get them. They are also experimenting with aquaponics, where fish grow in the recirculating water system so that the fish's waste provides the nutrients. On top of all this, the system is powered by solar panels, wind turbines and occasionally a biodiesel generator. Nice. Watch the video to get the details.
The system is called the NY Sunworks Science Barge which is now owned by Groundwork Hudson Valley in Yonkers.