> This only makes sence for some low-calorie foods, like berries and salads - you have to provide too much light to grow something calorious like -potato Seems

> This only makes sence for some low-calorie foods, like berries and salads - you have to provide too much light to grow something calorious like -potato Seems to me that collecting solar energy and then using to power LEDs close to the leaves of said plants could be doable up to a certain size (or number of floors). Our panels are inefficient but plant leaves are much worse.