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Launched in 1989, Billi began as a small Australian company with big ideas. Entering the established water filtration market with a bold, innovative vision, Billi quickly disrupted the industry by introducing Australia’s first under-bench boiling and chilled water system just a few years later.
This breakthrough laid the foundation for Billi’s long-term leadership in the water systems space. A key milestone came in 2006 with the launch of the Billi Quadra, a revolutionary water system that remains a benchmark for energy efficiency, innovation and sustainable performance nearly two decades later.

Quadra: A Game-Changer in Under-Bench Water Technology

“The end user has always been at the heart of our design philosophy,” says David Craggs, Head of Research & Development at Billi.

 

These innovations made Quadra quieter, more efficient, and easier to install, offering new design freedom for architects and engineers.

Evolving the Quadra Range

Today, the Quadra family includes:

 

Dispenser options include XT Touch, XR Remote, and XL Levered, with finishes ranging from matte white to urban brass. Accessibility options such as Braille pads are also available.

Quadra systems support different capacities, chilled water temperature ranges (6°C to 15°C), and varying current draws to suit any setting. Billi also provides refillable service plans for long-term support.

 

Powered by Natural Refrigerant R290

Quadra’s energy efficiency is driven by natural refrigerant R290, which offers:

 

These benefits are enhanced with polypropylene insulation, standby modes, and timer controls that help lower utility costs while reducing environmental impact.

Health, Safety and Water Quality

Quadra systems are engineered for optimal water quality and health with:

 

Key safety features include smart lock technology and Splash Free™ spouts, ensuring intuitive, user-safe hydration experiences.

Certifications for Sustainable Building Projects

Billi Quadra products meet the highest environmental and performance standards:

 

With an RPV of 16, Quadra qualifies for Exceptional Performance in the Green Star Buildings rating tool, helping designers achieve sustainability goals more easily.

Product Development and Innovation

Billi continues to refine the Quadra range with new enhancements such as:

 

“We’re even improving how users fill their cups to reduce strain and improve safety,” says Craggs.

As the design approaches energy efficiency limits, Billi is preparing for a new era of breakthroughs in compact, high-performance systems.

Global Leadership and Compliance

As Billi expands internationally, it faces new sustainability benchmarks and regulatory standards worldwide.

“It’s about understanding our global impact and designing with purpose,” says Royce Tan, Brand Marketing Coordinator.

With a ranking in the top 35% of Global GreenTag and compliance rated “Ahead of the Market”, Billi is poised to lead globally in sustainable water technology.

Why Billi Quadra is a Market Leader

For architects, designers and sustainability consultants, Billi Quadra offers:

 

With decades of proven performance, verified sustainability metrics, and continuous product evolution, Billi Quadra remains a trusted choice for future-ready water systems across commercial and residential projects.

 

The journey toward a truly sustainable built environment is powered by bold vision, long-term commitment, and decisive action. However, progress isn’t measured by ideals alone; it’s validated by tangible evidence: metrics, certifications, and rigorous documentation.

This is particularly crucial when navigating the evolving landscape of environmental rating systems, where data volumes can be vast, especially regarding specified materials and product compliance.

With the launch of the Green Star Fitouts rating tool on the horizon, we explore how design professionals can make strategic product choices that deliver measurable environmental outcomes. Using Billi’s Quadra and Quadra Plus systems as a case study, we examine a core question: Why are verified sustainability metrics essential in achieving high-performance certification outcomes?

Elevating Fitouts Through Smart Specification

Many in the industry are familiar with the Green Star Buildings framework. The upcoming Fitouts rating tool, building on the Green Star Interiors foundation, introduces more ambitious targets across key focus areas, including decarbonisation, circular economy, occupant health, and social value.

The tool will award credits across five core categories:

Each project is assessed according to specific criteria and classified across three tiers: Minimum Expectation, Credit Achievement, and Exceptional Performance.

Understanding the Responsible Product Value (RPV)

One of the key tools to evaluate product performance within the Green Star framework is the Responsible Product Value (RPV)—a scoring system used to measure how well a product aligns with sustainability objectives across four categories: Responsible, Circular, Healthy, and Positive.

Each category contributes a fixed number of points, and the total defines the product’s RPV. The higher the RPV, the greater its contribution to credit achievements within a fitout project.

 

Higher RPV, higher potential: The Quadra example

Specifying products with a high RPV contributes significantly towards achieving the Responsible Products credits. Billi’s Quadra and Quadra Plus systems – with an RPV of 16 – are an excellent showcase of that methodology. Their RPV score is based on their Global GreenTag product-specific EPDs (worth five points) and their Global GreenTag LCARate Gold certification (worth eleven points).

Sustainable Hydration Solutions for Green Star Fitouts: Quadra & Quadra Plus Lead the Way

As the Green Star Fitouts tool enters the Australian market, sustainability-focused products are becoming critical for design professionals aiming to meet evolving certification standards. While this new rating tool is still rolling out, its foundational assessment approach is well-established in the Green Star Buildings tool, offering a clear framework for evaluating a product’s impact on environmental and performance outcomes.

Contributing to Green Star Responsible Products Credits

Billi’s Quadra and Quadra Plus systems are engineered to support compliance with the Green Star Responsible Products Framework, delivering independently verified sustainability performance.

In the Green Star Buildings rating tool, these systems have a Responsible Product Value (RPV) of 16, exceeding the minimum RPV of 11 required for Exceptional Performance under the Responsible Systems category. This positions Quadra and Quadra Plus as standout products for professionals aiming for high-performance fitouts and building certifications.

Key Sustainability Features That Support Green Star Credits

1. All-Electric Operation for Fossil Fuel-Free Goals

As fully electric systems, Quadra and Quadra Plus help achieve Green Star outcomes that require the elimination of fossil fuels for:

This aligns with future-forward building designs that aim for 100% electric operation.

2. Low-Toxin, Health-Conscious Materials

Quadra and Quadra Plus are manufactured using zero-VOC and BPA-free materials. These units are:

Additionally, they earn the maximum Health & Toxicity score under Global GreenTag, making them ideal for projects prioritising occupant health and wellbeing.

3. Water Efficiency & WELS Ratings

Water usage is a key sustainability metric. Depending on the model selected, Quadra and Quadra Plus feature:

This supports water efficiency targets in both Green Star Buildings and Green Star Fitouts projects.

Supporting Occupant Comfort and Wellness

Beyond direct credit contributions, Quadra and Quadra Plus also enhance indoor environmental quality:

These features contribute to a healthier, more comfortable indoor environment—critical for WELL and Green Star criteria.

Driving Carbon Reduction With Product-Specific EPDs

Billi provides product-specific Environmental Product Declarations (EPDs) for Quadra and Quadra Plus, supporting calculations for Green Star’s Upfront Carbon Emissions credits. Key metrics include:

Compared to an industry worst-case average of 271.7 kg CO2 Eq, Billi products demonstrate an upfront carbon saving of approximately 35%.

Credit Pathways for Carbon Performance:

Rating Level Carbon Reduction Target
Minimum Expectations 10% reduction
Credit Achievement 20% reduction
Exceptional Performance 40% reduction

These verified metrics help specifiers confidently target high-performance fitout outcomes under Green Star.

Embodied Carbon Reduction in Practice

According to Fergus Tough, Director of Manufacturing Operations at Billi:

“Case study analysis shows that material substitutions using low-embodied-carbon alternatives can reduce overall embodied carbon by 19% to 46%.”

With Australia’s upfront carbon emissions projected to rise from 16% to 85% of total building emissions by 2050, decisions around material selection will have long-term impacts. Billi’s transition to natural refrigerant R290—with zero ozone depletion potential and a GWP of <5—is one of many steps in its carbon reduction strategy.

Ahead of the Market: Verified, Transparent, and Digital-Ready

Both Quadra and Quadra Plus sit in the top 35% of Global GreenTag’s internal rankings, classified as “Ahead of the Market” for sustainability compliance.

To support specification and compliance documentation, Billi has:

Empowering the Next Generation of Sustainable Fitouts

The evolution of the Green Star Fitouts rating tool highlights the industry’s shift toward metric-driven sustainability. With products like Quadra and Quadra Plus, Billi equips architects, designers, and specifiers with the tools they need to:

By combining robust sustainability metrics with third-party verification, Billi sets the standard for responsible hydration solutions in Australia’s green building landscape.