Green Star Technical Clarification Rulings
Technical Clarifications for Green Star represent our answers to Technical Questions submitted by projects, and provide further guidance and reference to others. The list is regularly updated.
There are two types of Technical Clarifications listed in the table below:
General Clarifications
These are extensions to the guidance provided in the Submission Guidelines. They clarify and sometimes supersede the original Credit Criteria or
Compliance Requirements. General Clarifications set precedent for future project teams to follow. Should a project team wish to apply a general clarification to its project, there is no requirement for further Technical Questions to be submitted. NZGBC Assessors will also use them as precedents to assess submissions.
Project Specific Clarifications
These are published as references for other projects but, unlike General Clarifications, they do not set precedent. They often relate to special
situations where multiple prerequisites exist for a particular project and are less likely to reoccur to another project. Therefore, rulings set for Project Specific Clarifications are often conditional and will likely vary for other projects. Each project still needs to submit its own Technical Questions and provides evidence relating to its own building in order to have a similar ruling approved for that specific building.
Should you wish to apply any Technical Clarification for legacy rating tools to your projects, please submit a Technical Question to the NZGBC to
explain why and how it applies. You can access the online Technical Question form here
| Technical Question Title | Tool Version | Date Released | Credit Name | Sub-credit Name | TC Link |
|---|---|---|---|---|---|
| Heat Rejection - Potable Water Reduction | DABv1 | November 2019 | 18 - Potable Water, 27 - Microbial Control | Heat Rejection | Link |
|
Approved Ruling: For credit 18B.3 Heat Rejection a 90% reduction in the potable water used for heat rejection meets the credit aim. Evidence of 90% or greater potable water saving with a wet/dry cooler should be provided in order to be awarded 2 points via the prescriptive pathway. This could take the form of a manufacturer-provided calculation for the specified equipment in the project climate zone (using NIWA data). As this would need to be done as part of showing the savings this shouldn’t be an additional calculation. |
|||||