Hot Water Systems in Port Kennedy
The 6172 postcode, covering Port Kennedy and surrounding areas, is home to around 4,787 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 Port Kennedy and the 6172 area, 741 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 Port Kennedy's climate delivering an average of 5.4 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 6172
85th
State Wide
409th
Australia Wide
Hot Water Installation Port Kennedy
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 Port Kennedy
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterPort Kennedy
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 Port Kennedy
Compare heat pump hot water systems suitable for Port Kennedy'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 - Port Kennedy, 6172
Hot Water Demographics - Port Kennedy
Based on the Australian Bureau of Statistics 2021 Census (ABS), Port Kennedy has around 4,787 private dwellings, home to approximately 12,440 people. With an average household size of 2.8 people, and around 50 litres of hot water used per person each day in Australia, Port Kennedy households use approximately 140 litres of hot water daily, equating to a massive 0.7 million litres of hot water used across the suburb every single day.
Other census insights reinforce Port Kennedy's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Port Kennedy community is home to 1,159 couple families with children and 424 one-parent families, meaning a large proportion of households face substantial hot water demand. With 2,328 homes owned with a mortgage and 964 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.
Port Kennedy is converting hot water demand to efficient systems faster than many peers, with 15.5% of dwellings already upgraded.
Hot water systems in Port Kennedy
In Port Kennedy, more locals are swapping old gas and ageing electric units for an energy efficient hot water system that actually suits WA’s climate and power prices. With around 4,788 dwellings and an average household size of 2.8 people, most homes here are family sized, which means hot showers, loads of washing and dishes all add up. Median household income sits just under $2,000 a week, so when bills jump, you feel it. That is why upgrading to a modern heat pump hot water system, solar hot water system or efficient electric hot water system is becoming the logical next step for many households.
Port Kennedy’s coastal sunshine is a big advantage. The local Safety Bay weather station records average solar exposure of about 19.2 MJ/m² a day – roughly 5.3 kWh/m² – across the year. That strong sunlight makes a solar hot water heating system or high quality heat pump hot water installation a smart way to slash running costs. Families and retirees alike are looking at the annual hot water energy savings on offer and deciding that sticking with older gas units no longer stacks up when you compare heat pump vs solar hot water and newer electric options.
Across 6172 there are 4,207 separate houses, most with good roof space for panels and tanks, and a solid mix of homes owned with a mortgage and long‑term rentals. Hot water demand is steady, and more people are pairing rooftop solar with an energy efficient hot water system to soak up daytime generation. Brands like Rheem, Rinnai and Solahart are common choices for solar hot water installation, while Sanden heat pump systems are popular for those chasing the best heat pump hot water system performance and very low running costs.
Average annual bill savings in Port Kennedy are often in these ranges: • Replacing an old electric hot water system with a quality heat pump hot water system: $350–$700 per year • Switching gas to a heat pump hot water system: $250–$600 per year • Switching gas to a solar hot water system: $250–$550 per year • Upgrading an old electric hot water system to a modern electric hot water installation timed to run on solar: $150–$400 per year
Port Kennedy has already seen 741 efficient hot water systems installed, combining heat pump and solar hot water systems. Installations ramped up through the early 2000s, peaking around 2004–2005 with 77 and 90 installs, and have stayed consistently strong since, with regular upgrades every year through to 2024 and 2025. This steady trend shows growing local interest in electrification, lower running costs and choosing the most efficient hot water system that works with rooftop solar rather than fighting against it.
When it comes to hot water WA homeowners are increasingly looking at lifecycle costs, not just the upfront hot water system price. The good news is there are generous incentives. Federal Small‑scale Technology Certificates (STCs) reduce the effective solar hot water price or heat pump hot water price at the point of sale, and WA programs can stack on a solar hot water rebate or heat pump hot water rebate for eligible homes. There are also schemes that support an electric hot water system rebate when you move away from gas. For many Port Kennedy households, these discounts can trim the hot water system cost by a substantial percentage and cut the payback period to just a few years, especially if you use timers or solar diversion so your hot water runs mainly on your own rooftop generation. With solar hot water vs electric hot water, and electric hot water vs gas hot water, the numbers increasingly favour efficient electric and solar options.
If your unit is leaking, struggling, or more than 10–12 years old, it may be time to look at hot water repair versus full replacement. A new rheem solar hot water or rinnai solar hot water system, a sanden heat pump, or another reputable brand can often outperform patching up an old gas storage tank. Local installers can also help with solar hot water tank replacement, solar hot water repair and full heat pump hot water installation, making sure pipework, valves and controls are set up properly from day one.
Port Kennedy’s strong solar resource and growing focus on sustainability mean now is a great time to rethink your hot water WA setup. Whether you are moving from gas to an all‑electric home, comparing solar hot water vs electric hot water, or simply want the best hot water system Australia can offer for your budget, an efficient upgrade can cut bills, reduce emissions and future‑proof your place. If you are wondering whether to repair or replace, or what size and type will suit your family, connect with our trusted local hot water specialists for personalised advice and a tailored quote on the right hot water installation or hot water repair for your Port Kennedy home.