I would love to put solar panels on my house since I live in a region that has a lot of sunlight with few trees. But, we have to get permission to do so from the local electric company and they only allow so many people per year to get them installed. I don't necessarily agree with the electric company on this so I haven't pursued it further, honestly. It looks like your brother has a thriving farm and its so nice that you got to go visit. Have fun!
Ivy