Is There A Rebate For Heat Pump Hot Water Systems In NSW?

The heat pump hot water rebate in NSW commonly refers to the incentive available through the NSW Energy Savings Scheme. The ESS is designed to encourage households and businesses to replace less efficient equipment with eligible energy-efficient alternatives.

Rather than submitting a claim and waiting for money to be reimbursed, an eligible customer generally receives the incentive as a discount included in their installation quote. Only installers partnered with an Accredited Certificate Provider (ACP) can provide ESS discounts.

For a residential heat pump upgrade, the process typically involves:

• Checking that the property and replacement meet ESS requirements
• Selecting an eligible heat pump model
• Confirming the installer can offer an ESS discount through an ACP
• Receiving a quote showing the applicable discount
• Completing the required nomination and compliance paperwork
• Paying the remaining customer contribution



This distinction between a traditional rebate and an upfront discount matters when comparing quotes. A low advertised price may already include the incentive, while another quote may show the system cost and ESS discount separately.

There is no single rebate figure that applies to every heat pump installation. NSW Government guidance currently indicates discounts of up to $640 when replacing an electric water heater with a heat pump and up to $330 when replacing a gas water heater with a heat pump. These figures are indicative rather than guaranteed.

The NSW Government also notes that a typical incentive for replacing an existing electric water heater with a heat pump may fall between $405 and $675, depending on the appliance selected.

The eventual cost to the homeowner can be influenced by:

• The heat pump make and model
• The type of existing water heater being replaced
• The energy savings attributed to the upgrade
• The property's location
• Administrative and compliance costs
• The installer and services included in the quotation



For this reason, homeowners should compare the final out-of-pocket amount rather than assuming every heat pump attracts the maximum advertised discount.

Two households can purchase similar heat pump systems and still receive different quotes or incentives. This is because ESS incentives are linked to calculated energy savings rather than being a fixed cashback amount for buying a particular appliance.

The NSW Government's Safeguard certificate estimator, for example, requires information including the installation postcode and the brand and model of the equipment when estimating the number of certificates that an activity may create.

The calculation can take into account factors such as:

• The eligible system being installed
• The equipment being replaced
• Relevant climate or location factors
• The calculated energy savings under the current ESS rules
• Scheme calculation factors applying to the particular activity



Federal incentives may also enter the equation. Eligible heat pump water heaters can qualify for Small-scale Technology Certificates (STCs) through the Australian Government's Small-scale Renewable Energy Scheme, while NSW households may also qualify for the state ESS incentive.

STCs are calculated using factors including the system's deemed energy savings and the climate zone in which it is installed. That means location-related certificate calculations can contribute to differences in the total incentives available. It is worth asking an installer to clearly identify which state and federal incentives have been incorporated into a quote.

The ESS hot water incentive is available to eligible NSW households and small businesses. However, being located in NSW does not automatically mean every heat pump replacement qualifies.

Eligibility depends on the circumstances of the upgrade and whether the chosen equipment meets current scheme requirements. The NSW Government notes that households that already have an energy-efficient hot water system may not qualify because the incentive is based on the potential energy savings created by the replacement.

Before budgeting around a particular discount, check:

• What type of hot water system is currently installed
• Whether the proposed replacement is an eligible model
• Whether the installer offers ESS incentives
• Whether the installer works with an Accredited Certificate Provider
• What discount has actually been included in the written quote



ESS residential replacements are generally one-for-one. In other words, one existing residential water heater cannot simply be replaced with two or more heat pump water heaters and remain eligible under the standard replacement activity.

Choosing a heat pump does not automatically qualify the purchase for an incentive. The particular make and model needs to meet the applicable scheme requirements.

NSW Government guidance recommends checking that a proposed heat pump appears on the Clean Energy Regulator's register. Eligible heat pump systems with an insulated storage capacity of 700 litres or less also require a minimum five-year warranty against defects for ESS purposes.

Before settling on a system, consider:

• Whether the model is eligible for NSW and Australian Government incentives
• Its storage capacity
• Its energy performance
• The manufacturer's warranty
• The final price after all applicable discounts

Efficiency matters beyond simply meeting the minimum threshold. NSW guidance notes that not all eligible systems of the same size receive the same incentive and that a more energy-efficient model can produce a larger installation discount.

For a broader look at how heat pumps compare with other technologies, read our blog, What Is The Most Efficient Type Of Hot Water System?.

One advantage of the ESS structure is that homeowners are not expected to independently calculate certificates and navigate the entire scheme themselves.

To offer the ESS discount, an installer must be partnered with an Accredited Certificate Provider. The ACP is accredited by IPART and is responsible for meeting scheme requirements associated with creating Energy Savings Certificates.

Depending on the upgrade, the process can involve:

• Confirming the property's eligibility
• Checking that the selected equipment qualifies
• Recording details of the existing and replacement systems
• Completing required compliance documentation
• Obtaining the customer's nomination or consent
• Keeping evidence required under the ESS
• Calculating and creating eligible certificates

There is still paperwork for the homeowner to review and sign. Read the documentation carefully and make sure the quoted discount is clear before agreeing to proceed.

Once you know which system qualifies, you can then compare the supply and installation cost of a new hot water system in Lismore.

A rebate or discount reduces the upfront price, but homeowners at the consideration stage should also look at the longer-term numbers.

There is no reliable universal payback period because households use hot water differently. The answer depends on the price paid after incentives and the difference between the running cost of the new heat pump and the system it replaces.

A useful starting calculation is: Net upgrade cost ÷ estimated annual energy savings = approximate simple payback period.

For example, if the net additional cost of choosing a heat pump is $2,000 and the household saves $400 per year compared with its alternative, the simple payback period would be around five years. That is an illustration rather than an expected result.

Your calculation should consider:

• The final installed price after incentives
• Current hot water energy consumption
• Electricity tariffs
• Household hot water demand
• Whether rooftop solar is available
• Expected system life and warranty coverage

Tariffs deserve particular attention. IPART notes that although heat pumps consume less energy, changing from an off-peak electric system could shift when electricity is consumed and potentially affect the bill outcome.

If you're also weighing up solar hot water in Lismore, comparing estimated running costs side by side can provide a clearer picture than focusing on the initial purchase price alone.

For homeowners around Lismore and the Northern Rivers, the useful figure is the complete cost after available incentives rather than the headline value of a rebate.

Requesting comparable written quotes can make the decision considerably clearer. NSW Government guidance recommends obtaining multiple quotes and checking that the applicable discount is included.

When reviewing them, compare:

• The exact heat pump make and model
• The quoted supply and installation price
• NSW ESS discount applied
• Federal STC discount applied, where applicable
• Customer contribution
• Warranty terms
• Estimated electricity consumption
• Any site-specific costs

The same principle applies outside Lismore. We install the same rebate-eligible systems in Ballina and surrounds, although the final quote and incentive should always be confirmed for the individual property.

We at Mid Richmond Plumbers & Suppliers can help you assess suitable hot water options for your property and provide a clear quote so you can see the costs involved before making a decision. If you're in Lismore or elsewhere in the Northern Rivers and are considering an eligible heat pump upgrade, contact our team to discuss your hot water requirements and arrange a quote.

Understanding the heat pump hot water rebate in NSW before committing to an upgrade gives you a much better basis for comparing the upfront cost, available incentives and realistic payback period.