If I produce enough power will my provider give me a cheque back?

The good news is that for some people around Australia they got in early when feed in tariffs were quite enticing and have put themselves in a situation where they will receive credits each year moving forward until the rates are changed. Upon asking for your refund you should be entitled to receive the credit back in the form of a cheque or other payment methods. If you install a system that can feed back enough power to counteract the service to property and energy used outside of daylight hours, Or even have batteries that minimise you energy usage from the grid then you may be yourself in a situation that you can become cost neutral with the retailers and possibly receive payments back you yourself. In most situations this will not be a feasible option but note that it is doable.