There isn’t much to be secret about really. When you ask any of the big LED suppliers, like Philips or Hortilux, for a quotation, they ask what you are planning to grow and they give you a lighting plan. The energy usage is relatively predictable, if you know how the building you are in is insulated and you know your ventilation requirements. It isn’t trivial, but it is possible to do the numbers.

We will be publishing some data from our pilot installation next year (approx 250 m2 building, 100 m2 active growing area, 30 m3 water). It isn’t a vertical installation, but a Deep Water Culture (DWC) aquaponics installation. We are in the final stages of building it right now. Spent all day working on the decking around the fish tanks.