The feed-in tariffs for the purchase of energy from solar PV systems are determined with a decision of the Energy and Water Regulatory Commission (EWRC) every year on July 1 and they are fixed for the term of the Power Purchase Agreement, but not longer than 31.12.2035. After this date, all solar PV plants start selling the electricity produced on the electricity market, as all power plants over 30kWp trade the produced energy at the moment.
There are constant rumors about what will happen to preferential prices. Our advice is not to believe everything you hear, because the people who really know what will happen are very few and work in EWRC and do not have the habit of exporting such information.