Comment
Comment by technotony
The next step is optimizing the plants to grow better in these greenhouse conditions - currently the plants waste lots of energy. For example my company, TAXA Biotechnologies[1], has identified a gene that doubles the rate of growth of lettuce per unit light energy. It wouldn't work in the wild as the cost is reduced pest-resistance but growing indoors there are other ways to control that.
[1]www.taxa.com