AFAIK lighting is the biggest energy eater for indoor farming.
It depends. Natural lighting makes more sense closer to the equator, while ac costs are probably higher than farther north. Regardless of what the energy is spent on, it has a huge footprint.
Artificial lighting is not optional, otherwise it's not indoor farming, just fancy greenhouses.
AFAIK lighting is the biggest energy eater for indoor farming.
It depends. Natural lighting makes more sense closer to the equator, while ac costs are probably higher than farther north. Regardless of what the energy is spent on, it has a huge footprint.
Artificial lighting is not optional, otherwise it's not indoor farming, just fancy greenhouses.