NABERSNZ
Energy performance rating
NABERSNZ is an adaptation of the National Australian Built Environment Rating System (NABERS). Launched in 1999, NABERS is widely considered to be a world-leading energy rating tool for commercial buildings. NABERSNZ is licensed to the Energy Efficiency and Conservation Authority (EECA) and is administered by the New Zealand Green Building Council (NZGBC).
![](https://www.singer.co.nz/wp-content/uploads/Nabers-Scale.jpg)
![](https://www.singer.co.nz/wp-content/uploads/Nabers-Scale.jpg)
Commercial buildings use 21% of New Zealand’s electricity, costing businesses $800 million every year. On average, building energy performance could be improved by 20-25%. NABERNZ is a system for rating the energy performance of office buildings used once buildings are occupied and operating for a year or more. There are three kinds of ratings.
- A base building rating measures the energy performance of a buildings core services – lifts, stairwell lighting, common toilets, air conditioning and ventilation etc.
- A tenancy rating measures just the floors/areas occupied exclusively by the tenant, including energy usage such as computers, lighting, data centres, and staff kitchen.
- A whole building rating combines base building and tenancy.
A NABERSNZ certified rating gives a star rating, from 0 to 6, that clearly shows your buildings energy performance compared to others and is valid for 1 year. Each year you are required to get a new assessment to track your progress, which encourages continuous monitoring and means that when your energy efficiency improves, you will be able to prove it.