Carefully consider the types of solar panels you plan on having installed. Long ago, if you didn't have enough roof space, you'd need very expensive high efficiency mono-crystalline panels. There are now more advanced polycrystalline panels and even thin film panels. If you've got enough roof space, you might wish to look at the size of the panels in relation to their output capacity to avoid having insufficient panels that you need more of later.
You have likely already made the choice to remove your reliance on fossil fuels and start a new life using solar energy as your main source of power. The technology used today is less-harmful on the environment and more efficient than what was in use years ago. Breakthroughs occur every day and every day you could be saving even more.
Contact your insurance agent to find out if a solar energy system could be included in your insurance policy. Expect your homeowner's insurance premiums to go up once your system is installed and consider switching to a different insurance agency if you find that your premiums have become too expensive.