This Companion Tool is designed to be used in conjunction with the DOE/PNNL ASHRAE Standard 90.1 Performance Based Compliance Form (i.e., Compliance Form). The process is that submitters first fill out the Compliance Form and import the data entered into the Compliance Form into this tool to perform additional/custom calculations. AHJs/RAs can select in-built custom/additional calculations to be performed. Examples of in-built additional/custom calculations include but are not limited to determining performance in alternative metrics such as site energy, source energy or GHG emissions and determining savings by fuel and end use. Please see the "Instructions for AHJs and RAs" tab in the Companion Tool for a complete list. AHJs/RAs can add as many tabs as desired in order to perform additional calculations relevant to the AHJ/RA's program. This video demonstrates how to use the companion tool.
What's New
This version of the Companion Tool supports AHJ customization of Building Performance Factors (BPFs) following the approach in ASHRAE 90.1-2022 Informative Appendix I using either coefficients analogous to the published BPFs in the various editions of 90.1 or coefficients that correspond to an updated approach described in the PNNL Technical Support Document titled, "Commercial Building Prototypes Based on ANSI/ASHRAE/IES Standard 90.1-2019 Appendix G PRM". This version also has a number of additional usability improvements and bug fixes which can be found on the "Revision Log" tab.
Version: v1.3
Release Date: September 20, 2024
Download:
ASHRAE Standard 90.1 Performance Based Compliance Form Companion Tool v1.3