[Bldg-sim] Public Review of ASHRAE Standard 229P “Protocols for Evaluating Ruleset Application in Building Performance Models” Now Open

[Jason Glazer]

Performance paths of building energy standards such as 
90.1’s Appendix G, Title 24’s ACM, and RESNET HERS require 
modelers to follow “rulesets” that describe how building 
energy models should represent the building design and a 
reference model to compare against. These rulesets are 
complicated and subject to interpretation. ASHRAE Standard 
229P is motivated by the desire to improve the rigor and 
consistency of ruleset application, to reduce the cost of 
performance‐path compliance submittal review, and, in doing 
so, to encourage the adoption and implementation of 
performance‐based codes. Standard 229P defines a schema that 
describes the building models in simulation‐engine neutral 
and ruleset-neutral format. Once simulation software starts 
to export this file format, another piece of software called 
a Ruleset Checking Tool can automatically compare the 
exported files and determine if the rules in the ruleset 
were followed. This will significantly reduce the effort for 
reviewing simulation-based compliance.

To support this workflow, Standard 229P defines the 
following using 90.1-2019 Appendix G as an example:

  * The Ruleset Evaluation Schema
  * Compliance requirements and tests for building
    performance modeling software that exports models in
    ruleset evaluation schema format.
  * Compliance requirements and tests for a Ruleset Checking
    Tool.

Use this link to download a copy of the draft standard and 
provide comments:

https://www.ashrae.org/technical-resources/standards-and-guidelines/public-review-drafts

The comment period closes on June 4, 2024.

Jason

Vice-chair of SPC 229 committee

-- 
Jason Glazer, P.E., BEMP, GARD Analytics, 90.1 ECB chair
Admin for onebuilding.org building performance mailing lists
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/bldg-sim-onebuilding.org/attachments/20240409/ca576d04/attachment.htm>