[core-questions]

I guess this presupposes a place where electricity rates are charged based on time of use rates, yeah?

What about installing light pipes to enable sunlight for work lighting during the day, so you can still have a day crew, and just turning the lights on at night

[nosmokewhereiam]

We've tried to use green-spectrum lights in the past, but if they are bright enough to work under, they are too bright for the plants when they need complete darkness. Otherwise a seeded crop may be produced due to environmental stress, lowering the value.