Technology: Thin film and crystalline
By steadily building some of the country’s largest solar capacities, we are trying to prove that green energy is doable and can be made affordable through rapid expansion. To achieve this goal we have been partnering with Tier 1 technology partners. This ensures that we achieve high level quality benchmarks at our project sites and touch optimal plant performance standards. We have been using both thin film and crystalline technologies at our project sites, as both are conducive for Indian climatic conditions. Both variations of photovoltaic technologies have their own unique advantages and are chosen on the basis of differing factors.
Crystalline technology for example, is available with higher DC plate rating therefore, the number of crystalline modules used are less. However, thin film offers lesser temperature coefficient as compared to crystalline PV modules while the BOS cost per MW in crystalline technology is lesser than thin film due to a difference in efficiency. A major impact would be on the mounting structure cost and it can be approximately 1.6 times in the case of high efficiency thin film PV module. Thin film offers a unique light soaking effect and lower temperature coefficient; therefore higher energy output can be expected from modules. - Vineet Mittal, Vice Chairman, Welspun Renewables