Hot Water Systems in South Perth
The 6151 postcode, covering South Perth, Kensington and South Perth Angelo St and surrounding areas, is home to around 8,510 households. With many households already generating their own clean solar power, many are now looking at how they can make their entire home energy system more efficient, with hot water heating often the logical next step.
With hot water roughly accounting for a quarter of the average home's energy use, switching to an energy-efficient hot water system is one of the biggest opportunities for savings. Across South Perth and the 6151 area, 467 homeowners have already switched from older electric storage and gas hot water systems to solar hot water or air-source heat pump systems that draw on clean, renewable power while also claiming the hot water rebates to reduce their hot water heater system cost. These highly-efficient systems not only help cut energy bills but also reduce carbon emissions and improve overall energy independence.
With South Perth's climate delivering an average of 5.3 kWh/m² per day, conditions are ideal for hot water systems and hybrid heat pump systems that harness both sunlight and ambient air temperature to heat water efficiently all year round. When paired with existing rooftop solar power or solar batteries, the result is hot water that costs far less to run and is powered by clean, self-generated energy.
Hot Water Ranking
Postcode 6151
113rd
State Wide
601st
Australia Wide
Hot Water Installation South Perth
Estimated daily energy to heat household water, comparing a resistive electric element with a high-efficiency heat pump. Demand shifts month-to-month using local climate patterns.
Energy Efficient Hot Water & Solar Power South Perth
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterSouth Perth
Illustrates how a typical 6.6 kW rooftop solar system can offset the daytime energy demand of a COP 5 heat pump hot water unit.
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Heat Pump Hot Water Systems for South Perth
Compare heat pump hot water systems suitable for South Perth's climate. These energy-efficient systems are designed to work in local temperature conditions and can significantly reduce your hot water energy costs.
Community Hot Water Statistics - South Perth, 6151
Hot Water Demographics - South Perth
Based on the Australian Bureau of Statistics 2021 Census (ABS), South Perth has around 8,510 private dwellings, home to approximately 15,758 people. With an average household size of 2.2 people, and around 50 litres of hot water used per person each day in Australia, South Perth households use approximately 110 litres of hot water daily, equating to a massive 0.9 million litres of hot water used across the suburb every single day.
Other census insights reinforce South Perth's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The South Perth community is home to 1,188 couple families with children and 217 one-parent families, meaning a large proportion of households face substantial hot water demand. With 1,888 homes owned with a mortgage and 2,324 owned outright, many residents also have the homeownership and growing equity that make switching to efficient hot water systems a practical way to lower expenses.
South Perth is converting hot water demand to efficient systems faster than many peers, with 5.5% of dwellings already upgraded.
Hot water systems in South Perth
In South Perth, more homeowners are rethinking their hot water system and moving to energy efficient options like a heat pump hot water system, solar hot water system and modern electric hot water system. With around 7,254 occupied dwellings, an average household size of 2.2 people and a strong base of owner-occupiers, it makes sense that locals are looking for smarter ways to cut running costs without sacrificing comfort.
The South Perth climate is ideal for efficient hot water. The nearby Perth Regional weather station records an impressive 19.3 MJ/m² of solar exposure a day on average – roughly 5.4 kWh/m² – which is perfect for a solar hot water heating system or a high-performance heat pump hot water system that draws warmth from the air. With a median household income of about $2,113 per week and many families still paying off mortgages, shifting from older gas or ageing electric units to the most efficient hot water system available is a logical next step. Annual hot water energy savings can easily reach hundreds of dollars a year when you upgrade.
In 6151, separate houses and townhouses dominate, but there are also more than 1,700 flats and apartments, so hot water demand ranges from compact units to large family homes with three or four bedrooms. That means a wide spread of system sizes, from smaller electric hot water installations through to larger solar hot water tanks for busy family bathrooms. Local experience shows hot water energy use can be one of the biggest single loads in the home, so choosing an energy efficient hot water system has a big impact on overall bills.
Across South Perth there have already been 467 efficient hot water systems installed, including both heat pump and solar hot water installation projects. Installations ramped up around 2009–2010, with more than 80 systems fitted in just those two years, and there has been steady interest ever since, with new systems going in every year through to 2024 and beyond. This long-term trend shows growing confidence in electrification, lower running costs and moving away from gas hot water.
Locally, brands like Rheem, Rinnai and Sanden are popular choices, with Rheem solar hot water and Rinnai solar hot water often paired with existing rooftop PV. Many higher-end homes and renovations are choosing a Sanden heat pump as one of the best heat pump hot water system options on the market. For those comparing heat pump vs solar hot water, a quality rheem heat pump hot water system can be ideal where roof space is tight, while a chromagen solar hot water or similar system suits homes with great northern roof exposure.
Typical annual bill savings in South Perth look like this:
• Old electric to heat pump hot water system: save around $400–$800 per year. • Gas to heat pump hot water: save roughly $300–$700 per year. • Gas to solar hot water system: save around $250–$600 per year. • Old electric to modern electric hot water with solar: save roughly $300–$700 per year.
For many households, the hot water system price or cost is the main barrier to upgrading. The good news is that Australian Government Small-scale Technology Certificates (STCs) and WA hot water rebate programs for efficient systems can significantly cut the upfront heat pump hot water price or cost and solar hot water price or cost. In some cases, these discounts can effectively reduce system cost by a substantial percentage, especially when you are replacing an old electric hot water system or gas unit. On top of that, there may be an electric hot water system rebate or specific heat pump hot water rebate or solar hot water rebate available, depending on the technology you choose.
When you compare solar hot water vs electric hot water or electric hot water vs gas hot water, it is worth factoring in rebates, tariffs and how you use energy at home. Many South Perth households use timers or solar diversion so their electric hot water installation or heat pump hot water installation runs mainly on excess solar, shortening the payback period. Solar hot water repair and solar hot water tank replacement are also common when older systems are upgraded rather than fully replaced.
If your current unit is ageing, running out of hot water or needing frequent hot water repair, it could be the perfect time to look at the best hot water system Australia has to offer for your needs. Whether you are considering a full solar hot water installation, a compact rheem heat pump hot water system, a rinnai solar hot water upgrade, a chromagen solar hot water replacement or a simple electric hot water installation, choosing the right hot water WA solution can reduce bills, cut emissions and future proof your home. With strong local interest in sustainability and hundreds of efficient systems already installed in South Perth, it is worth checking if your place is ready for a hot water upgrade. Talk with experienced hot water installers and heat pump and solar hot water specialists here in South Perth for personalised advice, clear pricing and help accessing any hot water rebate WA programs you are eligible for.