The rooftop solar capacity installations fell to 1.09 gigawatt during January-September 2022 due to reasons like supply chain disruption in solar modules and delay in tenders by state implementing agencies, Parliament was informed Thursday. At 1.09 GW, the installation was over 4 per cent lower compared to 1.14 GW in the nine-month period of 2021, according to the data shared by Minister for New and Renewable Energy R K Singh in Lok Sabha.