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NABERSNZ Ratings.
Prove your building’s quality.
Outstanding NABERSNZ ratings for your buildings.
BraveGen provides the experience and tools to efficiently achieve the NABERSNZ ratings required by high-quality tenants and government agencies.
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Our clients are
0,000,000kg of CO2-e closer to Net Zero and spending
$0,000,000 less on utility costs.
Trusted by outstanding businesses.
Independent efficiency ratings.
Why NABERSNZ?
As pressure increases to reduce emissions and improve efficiency, a NABERSNZ rating offers a detailed and objective measure of your building’s energy performance.
We’re the largest assessor of NABERSNZ ratings in New Zealand. We’ve combined energy expertise with cutting-edge technology to create a thorough and cost-effective assessment process that’s used by some of the country’s largest organisations.
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“We believe adopting environmentally sustainable practices like NABERSNZ is the right thing to do and we see it as a win-win outcome on every level.”
Ryan Carter
Portfolio Manager, 151 Property
What is NABERSNZ?
NABERSNZ helps you to accurately measure, understand and communicate the environmental performance of your building, while identifying areas for cost savings and future improvements.
Operated by the New Zealand Green Building Council (NZGBC) on behalf of the Energy Efficiency and Conservation Authority, NABERSNZ gives office and government buildings or individual tenancies an annual rating of zero to six stars on how well they use energy. The ratings must be updated yearly.
Types of NABERSNZ ratings.
There are 3 types of NABERSNZ ratings, suitable for different occupants and businesses.
Base build.
A base build rating measures the energy performance of a building’s core services, such as lifts, stairwell lighting, common toilets, air conditioning, ventiliation, etc.
Suitable for: commercial property owners & property managers.
Tenancy.
A tenancy rating measures the floors or areas occupied exclusively by a tenant, including energy use such as computers, lighting, data centres, and staff kitchens.
Suitable for: commercial building tenants.
Whole building.
A whole building rating combines base building and tenancy ratings.
Suitable for: commercial property owners & property managers.
Why BraveGen?
We make NABERSNZ simple.
To achieve efficient and cost effective results, a range of services and technology are required to measure, monitor and achieve and sustain quality NABERSNZ ratings. BraveGen’s integrated service offering and extensive experience allows us to deliver more effective energy and environmental results, whether you are looking for a whole building, base build or tenant rating.
We’ve refined our process over hundreds of sites, ensuring that you get accurate, actionable insights through a straightforward, thorough methodology.
Step 1: Monitor.
NABERSNZ assessments demand data which is difficult to access without the right tools. Our team handles the admin for you, collecting everything required for an accurate rating on your behalf.
If data is unavailable or inaccessible, our team will work with you to find cost-effective ways to source it through hardware metering, invoice analysis or liasing with stakeholders.
Step 2: Assess.
One of our expert engineers visits your site to apply exclusions and validate data based on floor area, occupancy hours, and more. This ensures that only your own energy use is considered for your overall score.
We then process and submit your data for an initial NABERSNZ rating. Congratulations! But the journey doesn't stop there.
Step 3: Improve
Once you've received your first NABERSNZ rating, our team will highlight key areas of improvement, suggesting swap-outs and upgrades to secure fast, cost-effective efficiency wins.
We can then help you develop a tailored long-term energy management plan for continuous optimisation and performance improvements year after year.
Step 4: Repeat
NABERSNZ ratings are updated every year, providing opportunities to improve your score every 12 months and secure a stronger competitive edge.
Our team can return regularly and repeat our process, reviewing your overall efficiency profile, providing support and guidance on fresh opportunities, and assessing your building for a new (and improved) NABERSNZ rating.
Frequently Asked Questions
Can I get a NABERSNZ rating for a building with a public café?
<p>A building with a cafe can be NABERSNZ rated. The assessor will confirm whether the cafe is used for only tenant purposes, our whether it is available to the public. So it can be determined whether the area and energy consumption should be included or excluded.</p>
Is NABERSNZ Basebuild mainly design related and Tenancy is performance related?
<p>No, All three NABERSNZ rating types (base building, tenancy and whole building) rate the ongoing energy efficient performance of the building. In reality, basebuild rating results can be capped in some instances due to particular design limitations. However, this must be accounted for in any renewal or refresh works.</p>
Is it correct that New Zealand Government tenants, when procuring a new lease, the building must now have a 4 Star NABERSNZ rating?
<p>Yes, that is correct. New Government leases must be 4 star or greater already. These increase over time. More information can be found <a href=”https://www.procurement.govt.nz/property/lease-and-facilities-management/energy-efficient-buildings/”>here</a>.</p>
Does NABERSNZ provide water ratings, and if not is this something which will be introduced in the near future.
<p>NABERS in Australia provides ratings including water. NABERSNZ currently is energy efficiency only, and there are no plans currently to introduce water ratings. The Green Star Performance rating tool captures water use.</p>
How should gas and water consumption be converted to KWH/sqm for Greenstar rating purposes?
<p>How should gas and water consumption be converted to KWH/sqm for Greenstar rating purposes?</p>
For NABERSNZ how do you meter a typical older building with split HVAC - e.g. ChW to FCUs off central plant and heating by FCU electric elements wired off the tenants' boards
<p>Typically we will submeter the relevant HVAC/basebuild loads on each floor to account for these loads in the calculation. This metering is common in many buildings we monitor.</p>