Due to the horrendous bushfires still burning in Australia at the moment you might notice a drop in your solar production on the order of 20-30%, this is due to the bushfire smoke in the air but it also might be due to the ash being deposited on your panels. The way to tell if you have significant ash on your panels is to check your production on a relatively clear day, if production is still down then you probably have ash on your panels which will need to be cleaned off.
It is up to you whether you think it is worth cleaning your panels while the fires are still burning, but if you do stay safe and if you have doubts about your ability to work on the roof, either clean them from the ground or get a professional to do it for you.
We have included a link to our previous article on cleaning your solar panels which you can find here.