Average annual solar radiation arriving at the top of the Earth’s atmosphere is roughly 1361 W/m². The Sun’s rays are attenuated as they pass through the atmosphere, leaving maximum normal surface irradiance at approximately 1000 W/m² at sea level on a clear day. Considering the average heat load conversion of glass is 500 W/m², and the annual total sunshine time in Bangalore is 2361 hour as per data collected during 1961 to 1990, thus the annual energy consumption per square meter of glass increased by heat load generated by solar radiation into the indoor is (500 W/m² X 2361 h) / 4 = 295 kwh/m². Since the Infrared Radiation rejection of our Auto Tint Film is 86%, then the annual energy saving resulting from using our Auto Tint Film is 295 kwh/m² x 86 % = 254 kwh/m² Also please note that along with energy savings, the Auto tint film also addresses to the Glare issues faced by the employees at workstations