Two separate rebates apply to heat pump hot water systems in NSW right now, and together they take a real chunk off the upfront cost. Neither one requires paperwork on your end beyond signing a couple of forms before installation starts. This guide breaks down exactly how each scheme works, how much they’re worth for a typical Newcastle household in 2026, and how the discount lands on your invoice.
What rebates are available for heat pump hot water in NSW in 2026?
Two schemes stack together on an eligible heat pump installation: the Federal Government’s Small-scale Technology Certificates (STCs), available nationwide, and the NSW Government’s Energy Savings Scheme (ESS), delivered through what’s officially called the Hot Water Upgrade Incentive. Both are applied as a discount on your installation rather than a separate rebate you claim afterwards.
Both schemes exist for the same underlying reason: hot water is one of the biggest energy users in an Australian home, and getting households off inefficient electric and gas systems is one of the more cost-effective ways for the state and federal governments to cut household energy use and emissions. That’s also why the incentives are structured as an upfront discount rather than a tax offset or a rebate you claim later. It removes the barrier at the point where people make the decision.
Federal Small-scale Technology Certificates (STCs) explained
When an accredited installer fits an eligible heat pump, the system earns a number of STCs based on its size, efficiency and postcode climate zone. Newcastle sits in STC Zone 3. A typical 200 to 330 litre heat pump in this zone earns somewhere around 14-15 certificates.
STCs traded at roughly $37 to $40 each through 2026, so a typical residential installation is worth roughly $500 to $600 off the purchase price, depending on the system size and model. The value declines a little over $100 each year as the scheme winds down toward its legislated end in 2030, so installing sooner rather than later locks in a better rate.
The certificate mechanism itself is a bit technical, but you don’t need to understand it to benefit from it. Liable energy retailers are required to surrender a set number of STCs each year, which creates ongoing demand for the certificates your installer generates. Your installer sells or trades those certificates and passes the value straight through to you as a discount, so the technical side of the scheme happens entirely behind the scenes.
NSW Energy Savings Scheme (ESS): how the point-of-sale discount works
The NSW Government’s own hot water upgrade incentive currently offers up to $640 off when you replace an electric water heater with a heat pump, or up to $330 off when you replace a gas water heater with a heat pump. The gap between the two exists because replacing an electric resistance system delivers a bigger energy saving than replacing gas, and the discount is scaled to the saving.
These figures are indicative rather than fixed. The actual amount on your quote depends on the installer, the specific model, and the administrative cost of running the scheme, so it’s worth comparing quotes from more than one accredited provider.
Stacking rebates: combining Federal STCs and NSW ESS
Both rebates apply to the same invoice. Your installer generates the STCs and claims the NSW discount on your behalf, and the combined value is deducted from the price before you pay anything. There’s no need to apply separately for each one, and you won’t be waiting on a cheque or a bank transfer afterwards.
You will still need to make a minimum payment toward the system and its installation. The rebates reduce the cost but don’t cover it entirely.
How much can you save in Newcastle?
For a typical Newcastle household replacing an old electric storage system with a 200 to 330 litre heat pump, combined rebates generally land somewhere between $800 and $1,500, with electric replacements attracting the larger NSW ESS component. Replacing a gas system still qualifies for both schemes, but the NSW discount is smaller, so total combined savings usually sit a little lower.
One NSW homeowner featured on the state government’s own hot water upgrade page described their gas hot water bill dropping from around $600 a year to about $75 after switching to a heat pump, and to effectively nothing once they started running it on their existing solar. Results vary by household, but it’s a useful illustration of what the running cost side of the equation can look like once the rebates have done their job on the purchase price.
Who is eligible for the NSW heat pump rebate?
Both homeowners and small businesses in NSW can access the NSW Energy Savings Scheme discount, and it isn’t income tested. You’re generally eligible if you’re replacing an existing electric or gas hot water system with an approved heat pump, though eligibility can depend on whether an accredited installer services your area. If you already have an energy-efficient system, you may not qualify, since the incentive is based on the improvement over what you’re replacing.
Renters can sometimes access the incentive with the landlord’s agreement, since the property owner is generally the one signing off on the installation.
It’s worth getting quotes from more than one accredited provider, since the scheme administrator’s own guidance is that the amount on offer varies by installer, model and location.
What systems qualify for the rebate?
The heat pump has to be listed as an approved model under both schemes, and for the NSW incentive it needs to carry a minimum 5 year warranty covering the compressor, tank and other major components. Hogan Hot Water supplies brands that qualify under both schemes, including Rheem, iStore, Apricus and Envirosun.
How does the rebate get applied? Do you claim it yourself?
No. Your installer handles both the STC and NSW ESS paperwork as part of the quoting process. Before installation begins, you’ll sign a nomination form allowing the installer to claim the certificates on your behalf, plus a quote showing the discount already applied. Hogan Hot Water manages this as standard, so the price you see on your quote is the price you pay, rebates included.
Common questions about NSW heat pump rebates in 2026
Do I need to apply for these rebates myself?
No. Your installer generates the STCs and claims the NSW ESS discount, and both are deducted from your quote before you pay anything.
Is the rebate the same for electric and gas replacements?
The Federal STC value is similar either way. The NSW ESS discount is higher for replacing electric, up to $640, versus up to $330 for replacing gas, because the energy saving from ditching an electric resistance system is larger.
Will the rebate cover the full cost of my heat pump?
No. You’ll still make a payment toward the system and installation. The rebates reduce the upfront cost but don’t eliminate it.
Does the rebate amount change over time?
The Federal STC value gradually decreases each year as the scheme approaches its 2030 end date, so installing sooner generally means a slightly better rebate than waiting. Both State and Federal schemes are subject to available funding and can be reduced or increased depending on uptake. It is not uncommon for schemes to be cut off with little notice once the allocation of government funding is close to capacity.
What happens if I’m a renter?
You may still be able to access the NSW incentive with your landlord’s consent, since they’re typically the one agreeing to the installation and signing the required paperwork.
If you’d like a rebate-inclusive quote for a heat pump hot water system in Newcastle or the Hunter, get in touch for a free quote or site assessment and we’ll work out exactly what you’re eligible for.