Government rebates for hot water systems in WA help reduce the upfront cost of upgrading to more modern and energy-efficient units. When you replace an old electric storage unit with an eligible heat pump or solar hot water system, you may receive up to $1,000 through state-based hot water rebates. If you switch from an electric storage to a gas hot water system, there is also a rebate of around $400 available.

On top of this, the national Small-Scale Renewable Energy Scheme provides further savings in the form of small-scale technology certificates (STCs), which act as an upfront discount rather than a reimbursement. That means your installation cost is reduced immediately when using an authorised installer. These incentives encourage Western Australian households to adopt renewable energy systems that reduce energy bills, improve energy efficiency, and support a more sustainable future.

What Rebates Are Available for Hot Water Systems in WA?

As of November 2025, no state government rebate program is currently available in Western Australia for hot water system replacements; however, the federal Small-Scale Renewable Energy Scheme continues to provide upfront discounts through STCs.

The main hot water government rebate options apply when replacing an electric storage unit with a more efficient system. Here’s a breakdown of programs in Western Australia:

WA Heat Pump or Solar Hot Water Rebate: Up to $1,000

Available when upgrading from:

Old electric water heater → heat pump hot water system
Old electric storage → solar hot water systems

This rebate helps households install heat pump systems that use less electricity to heat water, reducing long-term energy costs and helping reduce greenhouse gas emissions.

WA Continuous-Flow Gas Hot Water Rebate: Around $400

If you replace an electric storage unit with a continuous-flow gas water heater, you may receive approximately $400.

While still a financial incentive, many households are now transitioning away from gas toward renewable energy sources due to rising gas prices.

Typical Savings Breakdown

Upgrade Type	Typical Rebate	Typical STC Discount	Total Approx. Savings
Heat Pump System	Up to $1,000	$800–$1,800	$1,800–$2,800
Solar Hot Water System	Up to $1,000	$1,000–$2,400	$2,000–$3,400
Continuous-Flow Gas System	~$400	Not eligible for STCs	~$400

Eligibility Requirements (Simple Checklist)

To receive rebates for upgrading your hot water system in Western Australia, both the system and the installation must meet certain criteria. Here’s a clear, homeowner-friendly breakdown of what’s required:

System Eligibility

The new hot water system must be listed on the Government-approved product list to qualify for rebates and STCs.
The upgrade must involve replacing an existing electric storage hot water system.
Switching gas-to-gas does not qualify for the heat pump or solar hot water rebate.

Homeowner Eligibility

Rebates are available to homeowners installing a system on their own property.
The installation must take place at a residential home, not a commercial building or investment property shared metering system.
Renters may only access rebates if the property owner applies and authorises the upgrade.

Installer Requirements

The system must be installed by a Clean Energy Council (CEC) Accredited professional to be eligible for Small-Scale Technology Certificates (STCs).
To access the state-based rebates, you must use an authorised installer who participates in the WA rebate scheme, which Eurosun does.
This ensures the rebate and STC discounts can be applied upfront, reducing your out-of-pocket cost immediately.

How to Claim Hot Water System Rebates in WA

Claiming rebates in Western Australia is a straightforward process when you work with an authorised installer. The rebates and Small-Scale Technology Certificates (STCs) are usually applied upfront, meaning you don’t need to fill out forms or wait for reimbursement; the discount is taken off your installation price right away.

Step-by-Step

Choose an Eligible System: Select a heat pump or solar hot water system that appears on the Government-approved product list.
(If you’re unsure, we’ll recommend the best model for your home and water usage.)
Confirm Property & System Eligibility: Ensure you are replacing an electric storage system, and that the installation is at a residential property you own.
Get a Quote from an Authorised Installer: Eurosun will provide a tailored quote and confirm whether your chosen system is eligible for Small-scale Technology Certificates (STCs), which are applied as an upfront discount to reduce the installation cost.
Installer Applies Rebates & STCs Instantly: Rebate values are usually deducted from your quote upfront, so you pay less from day one.
Enjoy a Lower Upfront Cost: Your final invoice reflects the rebate + STC savings immediately. You get your new system installed and start saving on energy bills straight away.

Learn More About Government Rebates for Hot Water Systems in WA

Upgrading to a heat pump or solar hot water system is one of the most effective ways to lower your energy bills and improve your home’s efficiency, and with rebates and STC incentives available, it’s more affordable than many homeowners realise. If you’re considering replacing an old electric storage unit, Eurosun can help you confirm eligibility, recommend the right system, and apply your rebates and STCs upfront so you save instantly.

Speak with our team today for expert advice and an obligation-free quote!