A buddy of mine is building a large greenhouse to grow vegs hydroponically. He knows I am learning about bees and made the comment that he needs to put a hive in the greenhouse.

Does that make sense? Will a hive be "maintenance free" in that situation. It would surprise me to learn that there is such a thing as a no maintenance hive even if you are not trying to harvest from it. Should I send him information about mason bees?