Energy Calculations: What, When, & Why

  • Tim Shinnick, PE, QCxP, CEM – Grumman/Butkus Associates

Energy savings calculations are often a daunting task for commissioning providers on existing building commissioning projects. This session takes you on a deep dive into energy savings calculations for existing building equipment types. The speaker discusses best practices for energy savings calculations, including an overview of commonly used HVAC and energy-related equations necessary to estimate energy savings for facility improvement measures such as airflow setback, heat recovery, and simultaneous heating and cooling. Discussion includes how to account for measure interaction and present energy savings when multiple measures are implemented on the same equipment. The presentation also includes integrating field data and trend data to effectively calculate and verify energy savings measures.