Stability and Performance of Photovoltaic (STAPP) is a project which has been selected after rigorous peer review under India-UK Collaborative Research Initiative in Solar Energy. It is balanced consortium having four institutes from UK and four institutes of India, involving almost equal number of investigator from each side. Emphasis of the project is on the stability and performance of photovoltaic modules and system. This project also involves many leading Solar Photovoltaic companies mainly from India and UK. Project has been funded jointly by Research Council of UK and Department of Science and Technology, India. Total funding of the project is around 4 million British Pounds (300 million Indian Rupees).