Blog Series: Hot Water Systems, A Guide for Your Home #2

Sam Holmes
May 22, 2024
What are My Hot Water System Options?

What are My Hot Water System Options?

Hello again, it's Sam Holmes from VoltaRocks. Now that we understand why hot water systems are crucial, let’s dive into the various options available. With the right information, you can choose the best system that suits your needs and takes advantage of available rebates and incentives.

Hot Water System Options

  • Heat Pump Hot Water Systems: Heat pump systems are among the most efficient options. They work by extracting heat from the air and using it to heat water, similar to how a refrigerator operates but in reverse. According to Dan Datisky, these systems use around a third of the energy compared to electric storage systems and can save you up to 75% on energy consumption (Cyanergy, Renew,
  • Solar Hot Water Systems: Solar hot water systems use solar collectors to absorb energy from the sun, which is then used to heat water. These systems are ideal if you have ample roof space with good solar access. They can provide up to 90% of your hot water needs, significantly reducing energy bills and greenhouse gas emissions (Renew, ​​.
  • Electric Storage Water Heaters: Traditional electric storage heaters heat water using an internal element and store it in an insulated tank. While they are cheaper to install, they are less efficient and generate higher greenhouse gas emissions compared to heat pumps and solar systems. They are also more expensive to run unless paired with solar PV systems (, Renew)​.
  • Instantaneous (Continuous Flow) Systems: These systems heat water only when needed, providing an endless supply of hot water. (, Renew)

Rebates, Grants, and Discounts
  • Federal Government Incentives: The Australian Government offers Small-scale Technology Certificates (STCs) for renewable energy technologies, including heat pump and solar hot water systems. The number of STCs varies based on the system’s efficiency and your location, reducing the upfront cost significantly (, Renew)
  • State-based Rebates: Different states have additional rebates. For example, Victoria offers rebates for installing heat pump systems, further reducing the cost of these efficient systems. Check your local state government’s energy website for specific programs available in your area.
  • Energy Retailer Discounts: Some energy retailers provide discounts or incentives for upgrading to more efficient hot water systems. These programs aim to reduce overall energy consumption and can provide substantial savings.

For specific programs available in your area, check your local state government’s energy website. Here are the links to each state’s household energy programs:

Choosing the right hot water system depends on your household needs, budget, and local climate. Heat pumps and solar systems are excellent choices for their efficiency and environmental benefits, especially with the available rebates and incentives. Make an informed decision to enhance your home's comfort, save on energy bills, and contribute to a greener planet.

Explore a range of hot water systems at VoltaRocks and find out how you can benefit from rebates and incentives. Follow us on social media for more energy-saving tips and updates on sustainable living.

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