Pyranometer Posted on 14th December 20158th April 2022 by ThePD (The Project Definition) Pyranometer is an instrument used for measuring solar irradiance on a planar surface. Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window) Related Posted in Technology and tagged device, energy, solar energy. ThePD (The Project Definition) ThePD has been developing the Preferred Project Definitions based on the actual project execution and operation experiences and knowledge with the Project Language, and sharing with you daily basis.