Production of electricity from wind turbines fluctuates a lot. So does the price. I wonder if there are plants that you can give light when it is windy at any time of the day and leave in the dark when when electricity is expensive.
Already, wheat fields can be tilled and harvested by autonomous combines. Direct human labor is basically down to picking fruits and vegetables. Most of the time, it's going to be cheaper growing something outside, in the sun and dirt that's already there.
Well technically, if you could increase the photosynthesis efficiency then it might. There are projects that aspire to do just that. If the results are somewhat fragile and wouldn't survive in the wild then this could work in combination with greenhouses or vertical farms. But yeah, that's quite speculative and until it happens I agree that the energy budget doesn't make much sense.
Calories = Light (energy) + Fertiliser.
Efficiency of an LED is like 40%, and Photosynthesis efficiency is like 2%.
In other words calories are expensive and ineffieicent to produce through artificial lighting, no amount of 'startuping' will change that.
Also nothing here is new, we've had greenhouses, artificial lighting, hydroponics, aquaponics, aeroponics and even vertical farms like 50 years.