President Integrated Environmental Data,LLC Berne, New York, United States
The use of bifacial PV , which utilizes solar radiation reflected from the surface (albedo), has been growing in recent years. Albedo is commonly measured in just one location for a period of a year or more; it varies seasonally due to changes in vegetation, temporally due to passing clouds, and spatially because of variable cover. Satellite pixel sizes are often too large to capture the variability. Several existing data sets, utilizing a variety of solar radiation instruments, were analyzed. Drones are now being deployed to do surveys of spatial variation in albedo within a project area.