Hot Water Systems in Holsworthy
The 2173 postcode, covering Holsworthy and Wattle Grove and surrounding areas, is home to around 4,469 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 Holsworthy and the 2173 area, 68 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 Holsworthy'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 2173
414th
State Wide
1605th
Australia Wide
Hot Water Installation Holsworthy
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 Holsworthy
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterHolsworthy
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 Holsworthy
Compare heat pump hot water systems suitable for Holsworthy'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 - Holsworthy, 2173
Hot Water Demographics - Holsworthy
Based on the Australian Bureau of Statistics 2021 Census (ABS), Holsworthy has around 4,469 private dwellings, home to approximately 13,564 people. With an average household size of 3.2 people, and around 50 litres of hot water used per person each day in Australia, Holsworthy households use approximately 160 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 Holsworthy's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Holsworthy community is home to 1,567 couple families with children and 227 one-parent families, meaning a large proportion of households face substantial hot water demand. With 1,934 homes owned with a mortgage and 1,012 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.
Holsworthy is converting hot water demand to efficient systems faster than many peers, with 1.5% of dwellings already upgraded.
Hot water systems in Holsworthy
Across Holsworthy, more homeowners are switching from old gas and ageing electric units to modern, energy efficient hot water systems. With most of the 4,329 local dwellings being separate houses and an average household size of 3.2 people, hot water demand is high – especially for busy family homes juggling showers, washing and dishes. Rising energy costs and solid household incomes (median household income around $2,495 a week) mean upgrading to a smarter hot water system is a logical next step.
Holsworthy’s climate is well suited to efficient hot water. The area enjoys mean daily solar exposure of about 16.3 MJ/m², which is roughly 4.5–4.6 kWh/m² per day. That strong sunlight helps a solar hot water system or heat pump hot water system run efficiently, slashing running costs compared with older electric hot water or gas units. For many Holsworthy households, annual hot water energy savings from a well-sized heat pump or solar hot water heating system can easily reach hundreds of dollars a year, especially when paired with rooftop solar.
In 2173, most homes are three and four bedroom houses, so a family-sized hot water installation is usually the best fit. Hot water typically accounts for around a quarter of household energy use, so upgrading to the most efficient hot water system you can afford has a big impact. Locals are increasingly comparing heat pump vs solar hot water, as well as solar hot water vs electric hot water, to find the balance of upfront hot water system price, running cost and roof space.
Typical annual bill savings in Holsworthy look like:
- Old electric hot water system to heat pump hot water system: save roughly $400–$800 per year
- Gas hot water to heat pump hot water: save around $300–$700 per year
- Gas hot water to solar hot water system: save about $250–$600 per year
- Old electric to modern electric hot water system with solar: save about $250–$500 per year
Brands like Rheem, Rinnai, Sanden and Thermann are common choices locally, with options ranging from rheem solar hot water and rinnai solar hot water through to rheem heat pump hot water and premium sanden heat pump units. Many Holsworthy households are looking for the best hot water system Australia can offer for their budget, and often shortlist the best heat pump hot water system models for quiet operation, long warranties and low running costs. When a solar hot water tank replacement or hot water repair is needed, it is a good time to compare heat pump hot water price, solar hot water price and efficient electric hot water installation options.
Recent data shows 68 efficient hot water systems have already been installed in Holsworthy, combining both heat pump hot water installation and solar hot water installation. Installations peaked around 2008–2010, when solar incentives were strong, with 14 systems in 2009 and 13 in 2010 alone. More recent years, including 2020 and 2024, show steady new installs as interest in electrification, hot water nsw decarbonisation and lower running costs grows again.
Hot Water Rebates, Tariffs & Savings
Right now, there is strong interest in Holsworthy in replacing old gas or electric units with efficient options like a heat pump hot water system, modern electric hot water system or solar hot water heating system. Australian Government Small-scale Technology Certificates (STCs) help cut the upfront hot water system cost for eligible systems, including rheem solar hot water, chromagen solar hot water and many heat pumps. On top of that, NSW hot water rebate programs and schemes can provide a heat pump hot water rebate or solar hot water rebate, and in some cases an electric hot water system rebate when upgrading from inefficient models. For many Holsworthy households, these incentives can effectively reduce system cost by 30–50%, bringing the heat pump hot water cost or solar hot water price much closer to a standard electric replacement. Combine rebates with solar, smart tariffs, timers or solar diversion, and payback periods can shrink to just a few years while you enjoy an energy efficient hot water system every day.
If you live in Holsworthy and your existing gas or electric unit is getting old, now is a great time to check whether your home is ready for a hot water upgrade. Local interest in sustainability and lower bills is growing, and efficient hot water systems Holsworthy-wide are helping families cut emissions and future-proof their homes. For reliable hot water repair, electric hot water installation, solar hot water repair or full heat pump hot water installation, it pays to work with experienced hot water installers like us. Reach out to trusted local experts for personalised advice on hot water rebate nsw options, system sizing and the best solution for your Holsworthy home.