I am extremely keen on this idea as we have started Hydroponics here in Cebu,Philippines and although sunlight isn’t an issue or heat often what is here is theft. Having lockable units may be the solution for that problem as prices in the Philippines for food are often inflated. We seem to get the lower grade stock at the same price people are paying for high grade in UK supermarkets. But back on tangent I do think they are onto something with the idea although likely more useful for government buildings such as schools and hospitals as a provider of good quality food than general population use. May yet to be proved wrong mind!