maybe the panel does, but that doesn't much matter unless you're happy to make use of variable low voltage DC right there on the spot. it has to run through an

maybe the panel does, but that doesn't much matter unless you're happy to make use of variable low voltage DC right there on the spot. it has to run through an inverter, and likely be stepped up, to go anywhere else. and both of those things will tend to be higher efficiency when you've got more panels in the same place.