I would say Southbrook is at net metering. He is doing it for policy reasons. Before that, there was a lucrative thing that brought down the cost of the solar. It really doesn't depend on how you do it, but I would really love to see something....
What about a program where you put panels in South Sudan or Uganda? There's twice as much daylight. You're going to have all these life impacts. Does it have to be on a roof?