The FiT scheme was discontinued at the end of March 2019. The good news is that solar PV costs have fallen so far that commercial systems can still show returns on capital of as much as 20% , with domestic high consumers not far behind.
Large scale solar is making a return, but in a post-subsidy regime, at much larger scale. Many sites of more than 40MW are currently under development, with at least one huge 300MW site being considered. These sites are in effect simply power stations, existing from energy sales alone, and helping to power the UK towards our Zero Carbon goal.