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Unison Switchroom

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Unison Network’s Windsor Substation Switchroom, recently (2023) received the FIRST Living Building Challenge vs. Read more
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Unison Networks' Windsor Substation Switchroom, a pioneering project completed in 2022, achieved the FIRST Living Building Challenge vs. 4.0 Petal Certification, showcasing innovative, sustainable design and a commitment to a low carbon future in electrical distribution.

Unison Network’s Windsor Substation Switchroom, recently (2023) received the FIRST Living Building Challenge vs. 4.0 Petal Certification awarded through the International Living Future Institute for an Infrastructure & Landscape Typology project. First, not only in the world, but for Charissa Snijders Architect's practice as well. A definite milestone moment to celebrate.

The client's brief was clear – to deliver a building that was innovative, low carbon, relocatable, modular, scalable and sustainable. It was also seen as an opportunity for Unison Networks to drive transformational change within the electrical distribution industry. To do so, required the carefully constructed team, primarily comprising of Charissa Snijders Architect, Tricia Love Consultants and the key driver within Unison, project engineer Paul Humphreys.

The first of its kind, ground-breaking achievement, which demonstrates Unison's commitment to a sustainable energy future and sets a new standard in regenerative architecture. It required the team to challenge the status quo at every turn, including design, material selection, alternative solutions, education and demonstration to gain Council approvals. Under challenging circumstances including COVID lockdowns, they broke down every barrier to demonstrate that infrastructure can be sustainable and even positively contribute to both the environment and community.

The level of change realised is transformational. Initial targets were surpassed and significant outcomes beyond the original expectations of Unison were realised.

Some very notable ESD (Environmentally Sustainable Design) achievements for this Petal Certification (Energy, Equity + Beauty) which lead the way in resilient infrastructure design are:

  • Materials: 48.5% of materials used were sourced within 2,000km of site during construction. The use of ‘Red List free’ materials was a priority and we delivered over and above certification requirements. Forty salvaged 1950s Unison power poles for the canopy, screens, internal door frames and furniture. Eight DECLARE products were used.
  • Construction waste: Through strong waste management starting during design and throughout building, the team was able to divert 99% waste from landfill.
  • Net positive water: rainwater harvesting supplies all water on site.
  • Net positive energy: On site solar energy 7.9kW PV array powers 100% of Windsor switch room’s needs and energy produced above and beyond its requirements is sent back to the grid for community use. Plus the Dual 110V DC Lithium Ion battery energy storage for emergency use provides additional resiliency. Through the audit, 3,315 excess kWh were sent back to the grid.
  • 209% less carbon associate with primary materials (walls, structures and internal finishes – embodied carbon + 363% in absolute carbon reduction – which includes embodied and operational (over a lifetime of 60 years) than a typical substation. The switch room won the Low Carbon Future Award at the NZ Energy Excellence Awards in 2022.
  • Biophilic design is incorporated throughout the project
  • Native ecology is restored on site
  • Two organisations have received the JUST Label which addresses diversity and equity

This has been a rewarding project to be a part of and so beautifully demonstrates the power of architecture to facilitate collective and transformational change. 

Only by working together within our construction industry can we bring positive change to ourselves, our environment and our communities. If you are interested in being part of this vital transformational change, please contact me for a conversation. 

We can make a difference - one project at a time.

Credit: Tricia Love Consultants - Sustainability consultants

Products:
Nuralite Outright Rockwool insulation

Nuralite Everguard TPO membrane

Decortech Trespa Meteon panels (external cladding)

XLAM CLT panels

Completed
2022
Price range
$0.25m - $0.5m
Client
Unison Networks
3121h 15m

Awards

2024

Small Project Architecture | Hawkes Bay/Gisborne Region

Te Kāhui Whaihanga NZIA

2024
AwardSmall Project Architecture | Hawkes Bay/Gisborne Region
OrganisationTe Kāhui Whaihanga NZIA
2024

Resene Colour Award | Hawks Bay/Gisborne Region

Te Kāhui Whaihanga NZIA

2024
AwardResene Colour Award | Hawks Bay/Gisborne Region
OrganisationTe Kāhui Whaihanga NZIA
2023

Petal Certification vs 4.0

International Living Future Institute

2023
AwardPetal Certification vs 4.0
OrganisationInternational Living Future Institute
2022

Low Carbon Future Award

NZ Energy Excellence Award

2022
AwardLow Carbon Future Award
OrganisationNZ Energy Excellence Award

Professional Reviews

1 / 3

“Tucked away on the border of Windsor Park in Hastings, the first substation of its kind in New Zealand is working hard to help power a sustainable future. The Windsor Substation is the beginning of what it could mean for the future of electricity. Windsor Substation was a key opportunity for us to see what we could do differently. We explored a number of sustainability options, to generate our own power, to have sustainability around the water that we use and the materials that we use. Whilst I admit I have a significant bias I do think this is the most beautiful substation I have seen in NZ. Let’s hope it’s the start of a new trend. Thanks so much to all of team for making this into a reality. A special thank you to Charissa for her vision.”

Paul Humphreys - Unison Networks

Professionals used in
this project

The practices and trades credited on this project.

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