Standby Heat Loss Posted on 21st December 201516th October 2020 by ThePD (The Project Definition) Standby Heat Loss is a term used to describe heat energy lost from the systems. 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 Engineering and tagged heat. 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.