In glasshouses a reasonably wide variety of crops can be grown hydroponically including tomatoes, cucumbers, eggplant, lettuce, cannabis, peppers. This Nat Geo article [1] has some interesting data/analysis on greenhouse growing in the Netherlands. The Netherlands are the leaders in high-tech greenhouse growing. Approx 0.2-0.33 of the world's high-tech greenhouses are located there. The biggest costs are financing/depreciation, labour and energy. The balance of these three costs changes significantly depending on your geographical location.

I am the founder of a startup [2] based in the Netherlands and backed by Founder's Fund focussed on scaling high-tech greenhouse growing as a method of crop production. I have both a technical background in Reinforcement Learning and have spent time training as a tomato grower. Happy to answer any questions anyone may have at [email protected].

[1] https://www.nationalgeographic.com/magazine/2017/09/holland-...

[2] http://optimal.ag