I highly doubt they pay you more for your power than you pay for theirs, highly doubt it. You seem to be one of those who have a gross misunderstanding of what goes into electricity cost.
When you use electricity, the majority of the cost is in distribution. They do not pay you for this.
For each kw of electricity you use, you pay x+y+z
x: Generation Cost
y: Distribution and Transmission Cost
z: Regulatory fees, and other cost
For each kw you generate they only give you x, not y and z.
and y+z are > x
Perhaps you should reread the conversation that Fern and I had because I never once insinuated they would pay more than what you pay them. Matter of fact I went digging for actual information and posted it along with the link.
OTOH, you are absolutely wrong about the rest. Its called net metering laws and in every state whose law I have read they credit you 1:1 for each kw/h that you put back into the grid.
If you use 100 KW/h
You make 50 KW/h
You are billed for 50 KW/h
You are NOT billed for the transportation costs nor taxes/other fees for the 50 KW/h that you likely got from the grid but was offset by your power generation.
I would be happy to, again, post the relevant laws if you wish. Hell, I can post the site that you can view every single law concerning net metering and renewable energy incentives in the entire US so you can see exactly how wrong you are.
The only time you become a "dealer" of electricity is when over the course of a year (in most states) you generate more electricity than you use which makes you a seller of electricity instead of a consumer.
For the record, I own a company in the solar industry.