The launch of the PM Surya Ghar: Muft Bijli Yojana in February of this year has sparked a huge demand for string inverters, with installers saying the supply situation is tight. According to manufacturers, the demand for string inverters has risen as high as 300% since the introduction of the ambitious residential rooftop solar program, which aims at solar systems on the rooftops of 10 million households by 2026-27. The Ministry of New and Renewable Energy has constituted a mission directorate to ensure the achievement of the goals and oversee the day-to-day operations.