Reduced water loss is one of the chief selling points for "agrivoltaics". The cheapest setup, in most fields, is to make fence-rows of bifacial panels, running

Reduced water loss is one of the chief selling points for "agrivoltaics". The cheapest setup, in most fields, is to make fence-rows of bifacial panels, running north-south to pick up morning and afternoon sun, and particularly to block late afternoon sun that stresses plants most. But some crops (and livestock) benefit from protection against hail and storm rain. Then, again put up fence rows, but with the panels sticking out from both sides. Running them east-west, it is easy to tilt them to pick up the southern light better. (Northern, for you kiwis.)