Electrician Chanesh Prasad inspects the steam outlet of the rooftop solar systems at Tripolia Hospital, Patna. The hospital has installed simple concentrated solar power (CSP) systems to create steam, with which they sterilise all their medical equipment and laundry. The hospital also has solar photovoltaic systems to generate electricity for some buildings and outdoor lights, and solar thermal systems to create hot water for bathing patients and preparing medicine. The various solar systems cater for the 200 staff who live on campus, as well as up to 250 inpatients.