Hot Water Systems in Tarrawanna
The 2518 postcode, covering Tarrawanna, Bellambi, Corrimal, Corrimal East, East Corrimal and Towradgi and surrounding areas, is home to around 8,486 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 Tarrawanna and the 2518 area, 480 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 Tarrawanna's climate delivering an average of 4.5 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 2518
129th
State Wide
580th
Australia Wide
Hot Water Installation Tarrawanna
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 Tarrawanna
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterTarrawanna
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 Tarrawanna
Compare heat pump hot water systems suitable for Tarrawanna'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 - Tarrawanna, 2518
Hot Water Demographics - Tarrawanna
Based on the Australian Bureau of Statistics 2021 Census (ABS), Tarrawanna has around 8,486 private dwellings, home to approximately 18,805 people. With an average household size of 2.3 people, and around 50 litres of hot water used per person each day in Australia, Tarrawanna households use approximately 115 litres of hot water daily, equating to a massive 1.0 million litres of hot water used across the suburb every single day.
Other census insights reinforce Tarrawanna's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Tarrawanna community is home to 1,402 couple families with children and 490 one-parent families, meaning a large proportion of households face substantial hot water demand. With 2,245 homes owned with a mortgage and 2,507 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.
Tarrawanna is converting hot water demand to efficient systems faster than many peers, with 5.7% of dwellings already upgraded.
Hot water systems in Tarrawanna
Across Tarrawanna and the 2518 postcode, more locals are swapping old gas and electric units for an energy efficient hot water system that actually keeps bills down. With an average household size of around 2.3 people and more than 8,000 dwellings in the area, hot water is a big slice of local energy use. Many homes are older separate houses, often still running tired storage units, so upgrading to a modern heat pump hot water system, solar hot water system or efficient electric hot water system is a logical next step.
Tarrawanna’s coastal climate and decent sunshine make it well suited to efficient hot water. The Wollongong University weather station records mean daily solar exposure of about 16 MJ/m², or roughly 4.4 kWh/m² per day over the year. That level of sun supports strong performance from a solar hot water heating system and helps a heat pump hot water system run more efficiently, especially when paired with rooftop solar. For many households, hot water can be a quarter of total energy use, so the potential Annual Hot Water Energy Savings from upgrading can be significant.
In 2518, a mix of families and downsizers, plus a median household income of around $1,434 per week and sizeable mortgage repayments, means every dollar on the power bill counts. Many owner‑occupiers are now looking for the most efficient hot water system they can reasonably afford, weighing up heat pump vs solar hot water and even newer electric hot water vs gas hot water options as gas prices trend upwards.
A typical Tarrawanna home might compare the hot water system price or cost of a compact heat pump hot water installation against a roof‑mounted solar hot water installation or a simple electric hot water installation that uses excess solar PV. Brands like Rheem heat pump hot water and Rheem solar hot water are common choices, along with premium systems such as the Sanden heat pump and popular solar options like Rinnai solar hot water. These are often shortlisted when people search for the best hot water system Australia offers or the best heat pump hot water system for their family.
Real‑world savings matter. While every site is different, homeowners in Tarrawanna often see ballpark annual bill savings like:
• Old electric to heat pump hot water system: $400–$800 per year • Gas storage to heat pump: $300–$600 per year • Gas storage to solar hot water system: $250–$550 per year • Old electric to modern electric hot water system with solar diversion: $250–$500 per year
Over time, those savings can more than offset the initial heat pump hot water price or cost or the solar hot water price or cost, particularly when you factor in rebates and smart tariffs.
Efficient hot water is not just theory in Tarrawanna. There have already been 480 efficient hot water installations in the postcode, combining heat pump and solar hot water installation projects. Installations really surged around 2008–2010, with 160 systems in 2009 and 98 in 2010 alone, before settling into a steady trickle of upgrades each year. That early boom and ongoing activity show strong local interest in electrification, lower running costs and cleaner hot water. As older systems reach the end of their life, more residents are choosing an energy efficient hot water system rather than like‑for‑like replacement and arranging timely hot water repair or solar hot water repair when it makes sense.
Hot Water Rebates, Tariffs & Savings
For Tarrawanna households, the numbers get even better once you add incentives. Australian Federal Government Small‑scale Technology Certificates (STCs) reduce the upfront solar hot water price or cost and also apply to many heat pump units. On top of that, NSW hot water rebate programs and the broader hot water rebate nsw framework can provide a heat pump hot water rebate, a solar hot water rebate or even an electric hot water system rebate when you replace an inefficient unit. These discounts can effectively trim the system cost by a substantial percentage, cutting payback times down to just a few years, especially if you run the system on a smart off‑peak or solar‑friendly tariff and use timers or solar diversion to maximise free energy.
Whether you are comparing solar hot water vs electric hot water, planning a solar hot water tank replacement after a failure, or deciding if a chromagen solar hot water style system or similar is right for you, it pays to look at lifetime costs, not just the sticker price.
If you live in Tarrawanna and your current unit is old, noisy or expensive to run, now is a good time to check whether your home is ready for a hot water upgrade. Swapping from gas or an ageing electric unit to a modern heat pump, solar hot water system or efficient electric hot water system can cut bills, reduce emissions and future‑proof your place as energy prices change. Talk with experienced hot water nsw installers who specialise in heat pump hot water installation, solar hot water installation, hot water repair and solar hot water tank replacement. With Tarrawanna’s growing focus on sustainability and strong solar resource, connecting with trusted local experts for personalised advice can help you choose the right system and make the most of every available hot water rebate nsw offers.