Until we have a blackout or brownout we don't always think of how much we rely on the power always being on at a flick of a switch. So what happens when the power goes out now?
Do you use the roller door to access your home as well as getting your car out of the garage? Then you will need to do it manually unless you have a battery backup system installed. If you want to charge your iPhone or iPad, use the computer, use the NBN internet and even the home/office phone - none of it will be working... what a pain... unless you decided to have a battery backup system installed as part of your solar power system or have a battery-ready system installed.
It really does pay to plan ahead and consider your future use, not just your current use when deciding on what kind of solar panel systems you want to install at your home.