GARD has also been closely involved in the development of national building energy codes and standards including a detailed simulation based assessment of the ASHRAE 90.1-1999. GARD has continued to be closely involved in the improvement of successive versions to 90.1. Jason Glazer, president of GARD Analytics, in his role as chair of the ASHRAE 90.1 Energy Cost Budget subcommittee has helped to develop Section 11 as well as Appendix G, the Performance Rating Method for assessing buildings that go beyond code minimums.
GARD has played a crucial role in the transition of the California Energy Commission from using DOE-2 as the basis of Title 24 to using EnergyPlus as the simulation program. GARD was one of three organizations responsible for the ACM Report “Evaluation of the EnergyPlus Software for use with the California Energy Efficiency Standards” and helped to provide a detailed assessment of the ACM section-by-section. More recently, GARD has been involved in the Title 24 Compliance Software Project Modeling Workshops to help define the critical success factors, risks and issues, a list of stakeholders and users, and define use cases for the Title 24 2011 enhanced Standards Analysis Platform. Data definitions are a critical step in the development and implementation of rule sets and GARD was the lead investigator in the ASHRAE research project titled “Common Data Definitions for HVAC&R Industry Applications.” The project was focused on four of the twelve use-cases described in Guideline 20 Documenting HVAC&R Work Processes and Data Exchange Requirements. GARD has performed parametric analyses using building energy simulation programs for many clients to assess product performance and optimize design and more recently as a test methodology with every release of EnergyPlus.