Hold on a mo chaps.
If you are prepared to take on the business and financial risk, set up a local/regional/national organisation, including sales, marketing, back office, supply, storage, staff, PR, logistics, phones, internet, government compliance, funding for the business, etc etc (in other words a normal business venture), no one or nothing is stopping you from rolling out this operation in your own right. If you cant or don't want to do all of this, try and get in on the installer side (no you will not earn the lions share of the profit-if any - its a business and as always those at the top earn the most) and earn something on the back of it. But it really is no different from any other business, including yours but maybe on a different scale.
I am speaking of course of genuine on-the-level non rip-off ventures. Those fly by nights and rip off merchants I would never condone and sadly there are some out there.