Hot Water Systems in Plympton
The 5038 postcode, covering Plympton, Camden Park, Plympton Park and South Plympton and surrounding areas, is home to around 7,923 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 Plympton and the 5038 area, 238 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 Plympton's climate delivering an average of 4.9 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 5038
61st
State Wide
925th
Australia Wide
Hot Water Installation Plympton
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 Plympton
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterPlympton
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 Plympton
Compare heat pump hot water systems suitable for Plympton'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 - Plympton, 5038
Hot Water Demographics - Plympton
Based on the Australian Bureau of Statistics 2021 Census (ABS), Plympton has around 7,923 private dwellings, home to approximately 16,782 people. With an average household size of 2.3 people, and around 50 litres of hot water used per person each day in Australia, Plympton households use approximately 115 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 Plympton's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Plympton community is home to 1,340 couple families with children and 267 one-parent families, meaning a large proportion of households face substantial hot water demand. With 2,366 homes owned with a mortgage and 1,876 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.
Plympton is converting hot water demand to efficient systems faster than many peers, with 3.0% of dwellings already upgraded.
Hot water systems in Plympton
In Plympton, more households are swapping old gas and ageing electric units for an energy efficient hot water system that keeps bills down and showers hot. With an average household size of around 2.3 people and more than 7,300 dwellings across 5038, a reliable hot water system is essential for busy families, downsizers and renters alike. Rising energy costs mean upgrading from an older gas or electric hot water system to a modern heat pump hot water system or solar hot water system is a logical next step.
Plympton’s climate is ideal for efficient hot water. The local weather station at Morphettville records mean daily solar exposure of about 17.5 MJ/m², which is roughly 4.9 kWh of sunshine per square metre per day. That strong solar resource supports both heat pump hot water and solar hot water heating system performance, helping homeowners unlock solid Annual Hot Water Energy Savings compared with older units. With a healthy mix of homes owned outright and with a mortgage, and a median household income of about $1,553 a week, many Plympton households are in a good position to invest in long term energy savings.
Across 5038 there is a clear shift towards efficient hot water installation. So far, there have been 238 efficient hot water systems installed, including both heat pump hot water installation and solar hot water installation. Installations peaked around 2009–2010, then settled into a steady pattern of upgrades each year, with recent years still seeing new systems added as people focus on electrification and lower running costs. This reflects growing local interest in the most efficient hot water system options and moving towards all‑electric homes.
For a typical Plympton family, hot water can be 20–30% of household energy use, so the right upgrade matters. Popular choices include Rheem solar hot water, Rheem heat pump hot water, Rinnai solar hot water and premium heat pumps such as Sanden heat pump units. These sit alongside brands like Thermann and Solahart in the local market, giving homeowners a range of options when comparing heat pump vs solar hot water or solar hot water vs electric hot water. A quality solar hot water tank replacement or modern electric hot water installation paired with rooftop solar can be one of the easiest ways to cut bills.
Typical annual bill savings in Plympton look like this:
• Old electric to heat pump hot water system: save roughly $350–$700 per year. • Gas to heat pump: save around $250–$500 per year. • Gas to solar hot water system: save about $200–$450 per year. • Old electric to efficient electric hot water system with solar: save roughly $250–$600 per year.
Of course, exact hot water system price or cost depends on the size, brand and complexity of the hot water installation, but many households find the best heat pump hot water system offers the lowest running costs over time. When you factor in the heat pump hot water price or cost versus a solar hot water price or cost, it often comes down to roof space, existing solar, and how your family uses hot water.
Hot Water Rebates, Tariffs & Savings
Around Plympton, interest in replacing old gas or electric systems with efficient options is growing fast. Homeowners are asking whether the best hot water system Australia can offer their home is a heat pump, solar hot water, or a newer electric hot water system that works with rooftop solar. Federal incentives such as Small‑scale Technology Certificates (STCs) apply to eligible heat pump hot water and solar hot water heating system installs, effectively acting as an upfront solar hot water rebate or heat pump hot water rebate that lowers the purchase price.
On top of that, South Australian programs and retailer offers can provide an additional hot water rebate SA for qualifying systems, including an electric hot water system rebate in some cases. These discounts can reduce system cost by a substantial percentage and shorten the payback period, especially when you combine an energy efficient hot water system with solar and smart timers to run when your panels are producing. For many Plympton households, that means hundreds of dollars a year off bills and far more predictable running costs compared with electric hot water vs gas hot water tariffs.
If you are in Plympton and your current unit is older, noisy, or struggling to keep up, now is a good time to check whether your home is ready for a hot water upgrade. Whether you are weighing heat pump vs solar hot water, comparing solar hot water vs electric hot water, or just want reliable hot water SA wide, experienced local installers can help you choose the right size, brand and technology. Work with trusted hot water repair and installation specialists who understand Plympton’s energy‑efficiency potential and growing interest in sustainability, and who can guide you through solar hot water repair, solar hot water tank replacement, or a full electric hot water installation. Connect with local experts for personalised advice with us and future‑proof your home with a system that cuts bills, reduces emissions and keeps your hot water running smoothly.