Waikato’s new benchmark for energy efficiency

Tainui Group Holdings' Amohia Ake building in Hamilton has set a new standard for energy efficiency in Waikato. Achieving a prestigious 6 Star NABERSNZ rating, the highest possible and the region’s first, this building exemplifies excellence in sustainable building practices.
This case study explores the journey and strategies employed by Tainui Group Holdings, ACC, and their consulting engineers at Beca to achieve this remarkable milestone.

Background
Amohia Ake, the new ACC Centre developed by Tainui Group Holdings, is located on Collingwood Street in Hamilton. The building was designed to consolidate two ACC offices into a single, collaborative space, enhancing efficiency and sustainability. The project began over five years ago, with a focus on creating an intergenerational investment that aligns with the iwi's commitment to kaitiakitanga (guardianship).
Key strategies
Key strategies included:
- Natural Light and Building Adaptability: The building was designed to maximise natural light and ensure adaptability for future tenants. This approach not only enhances the working environment but also reduces energy consumption.
- Resilience and Flexibility: The structure was built in three separate sections connected horizontally and vertically, allowing for flexibility and resilience. A viscous damper system, the first of its kind in New Zealand, was installed to protect the building from earthquakes.
- Energy Efficiency: Solar panels were installed, and the building management system (BMS) was optimised to reduce energy consumption. The building's high-performance envelope minimises heating and cooling demand, while low-energy systems further reduce consumption.
Conclusion
The success of Amohia Ake demonstrates what can be achieved when efficiency and sustainability are prioritised. The building not only sets a new standard for energy efficiency in Waikato but also serves as a model for future developments. The collaboration between Tainui Group Holdings, ACC, and Beca highlights the importance of a holistic approach to sustainable building practices, ensuring long-term benefits for tenants, the community, and the environment.
“Achieving this 6 star rating for Amohia Ake is in line with the commitment of our iwi to kaitiakitanga both in terms of sustainable development practices and the performance of the finished buildings,” says Richard Jefferies, Acting CEO at Tainui Group Holdings
“We’re proud to play our part in creating high-performing, energy-efficient buildings that benefit both our tenants and the wider community."