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Cabarita Swimming Centre, Sydney

  • hellolaurataylor
  • Apr 7
  • 3 min read

The City of Canada Bay, located in Sydney's inner west, embarked on a mission to reduce its carbon footprint and transition to renewable energy sources. The Council has taken a number of steps to eliminate gas usage at Cabarita Pool, focusing on the installation of a

heat pump and a shift to 100% renewable electricity.


The City of Canada Bay is committed to climate action and environmental sustainability, having declared a climate emergency in 2019 and joined the Cities Race to Zero in 2021.


Cabarita Swimming Centre, which is one of two swimming centres in the local government area, historically relied on gas for pool heating and showers, constituting 80% to 90% of the Council's entire annual gas consumption. The legacy pool heating system, a fossil gas boiler, nearing end-of-life based on age and condition.


Heat pump solution

In 2023, the Council engaged Sunbather to install a Rheem air-to-water heat pump installation at Cabarita Pool and enlisted Inspire Energy to set up a 42 kW rooftop solar system. The initiative aligns with the Council's emissions reduction action plan, aiming for net zero emissions by 2030.

Unloading the Rheem RTHP540 heat pump system for installation.
Unloading the Rheem RTHP540 heat pump system for installation.

A Rheem RTHP540 heat pump was selected for the site, incurring approximately $200,000 in costs with

additional costs for site pre-work including electrical and plumbing connections. The feasibility work included replacing domestic hot water with heat pumps in the

future. Rather than a direct payback, the business case emphasised the value of the energy efficiency, equipment reliability and the imperative to meet net zero commitments.



Project outcomes

While ongoing evaluations are being conducted, the project has significantly reduced greenhouse gas emissions at Cabarita Swimming Centre. The heating system now relies on a combination of 42 kW onsite solar and 100% renewable grid electricity through the Council's contract with its supplier Zen Energy.


The project has generated positive publicity for the Council, with social media posts gaining significant reach. The Council’s experience was shared with other local government officers and industry members during a tour and webinars organised by the Australian Alliance for Energy Productivity.


Project observations, findings and challenges

  • Internal champions played a crucial role in maintaining project priority.

  • A simpler Energy Savings Certificates process would have helped secure the certificates.

  • Site pre-work facilitated the seamless installation of the heat pump while the pool was in operation.

  • A learning curve was experienced in understanding heat pumps, identifying suitable consultants and installers.


In conclusion, the City of Canada Bay's journey towards a sustainable, gas-free Cabarita Swimming Centre showcases the positive impact of local initiatives in the race to achieve zero emissions.

A graph showing energy expenditure (gas versus electricity) at the pool before and after installation.
A graph showing energy expenditure (gas versus electricity) at the pool before and after installation.

The Council's commitment, technological upgrades, and community engagement provide a blueprint for others seeking similar transformations.


Project summary

  • Location: Cabarita, Sydney, Australia

  • Facility type: Aquatic centre

  • Heat pump supplier: Rheem Australia

  • Installer: Sunbather


  • Equipment replaced: gas boilers

  • New equipment: Rheem RTHP540 540 kW heat pump

  • Water temperature set point: 27 °C 

  • Pool opening months: September to April

  • Pool cover utilised: Yes

  • Peak heating demand: 279 kW using the methodology from ISO/TR 12596:1995 Swimming pool heating systems

  • Total project cost: A$200,000 for the heat pump, plus some additional costs for site preparation and security fencing for the heat pump.



This case study was delivered with support from RACE for 2030.


© 2025 - The Australian Alliance for Energy Productivity

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