Its a Solar world

OK. We finally succumbed to the idea that going solar might be a part of our contribution to the world. It has, so far, been remarkably easy. You contact someone and sit down to discuss. You decide. You pay a deposit, and several weeks later someone arrives with ladders and 16 solar panels. Four hours later its all done. You pay the rest of the money, taking into account the rebate from the Australian government. Some weeks later, Energex may come and hook us up to the grid - if we are lucky.
So what could be simpler? I did worry about the roof - we have had leaks in the past. I did worry about standards - but was reassured. I still have a niggling feeling something could go wrong - but that is just me...