Hot Water Systems in South Granville
The 2142 postcode, covering South Granville, Blaxcell, Camellia, Clyde, Granville, Holroyd and Rosehill and surrounding areas, is home to around 10,327 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 Granville and the 2142 area, 110 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 Granville'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 2142
350th
State Wide
1368th
Australia Wide
Hot Water Installation South Granville
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 Granville
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterSouth Granville
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 Granville
Compare heat pump hot water systems suitable for South Granville'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 Granville, 2142
Hot Water Demographics - South Granville
Based on the Australian Bureau of Statistics 2021 Census (ABS), South Granville has around 10,327 private dwellings, home to approximately 25,774 people. With an average household size of 2.8 people, and around 50 litres of hot water used per person each day in Australia, South Granville households use approximately 140 litres of hot water daily, equating to a massive 1.4 million litres of hot water used across the suburb every single day.
Other census insights reinforce South Granville's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The South Granville community is home to 2,235 couple families with children and 415 one-parent families, meaning a large proportion of households face substantial hot water demand. With 2,149 homes owned with a mortgage and 1,511 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 Granville is converting hot water demand to efficient systems faster than many peers, with 1.1% of dwellings already upgraded.
Hot water systems in South Granville
Across South Granville, more households are rethinking their hot water system and moving away from old gas or power‑hungry electric units. With electricity prices rising and many locals aiming for more energy efficient hot water, heat pump hot water systems, solar hot water systems and modern electric hot water systems are becoming the smart next step. In a postcode with around 8,990 occupied dwellings and an average household size of 2.8 people, hot water demand is steady year‑round, so choosing the most efficient hot water system really matters.
South Granville’s climate is ideal for efficient hot water. The local weather station at Granville RSL records an average annual solar exposure of about 16.2 MJ/m² per day, which works out to roughly 4.5 kWh/m² of sunshine daily. That is more than enough to support strong performance from a solar hot water heating system or a quality heat pump hot water system. With a relatively young median age of 31 and a mix of renters and owners (around 2,149 homes owned with a mortgage and 4,970 rented), many families are looking for ways to cut bills and future‑proof their home. Swapping from old gas or electric hot water to an energy efficient hot water system can deliver solid annual hot water energy savings for South Granville homeowners.
In 2142, we see a mix of separate houses and a large number of units and townhouses, which shapes the types of hot water installation that work best. Compact heat pump hot water installations suit smaller blocks and apartments, while roof‑mounted solar hot water installations are popular on detached homes with good north‑facing roof space. Local hot water repair work often involves replacing ageing gas storage tanks with either a modern electric hot water installation or a hybrid approach that uses rooftop solar power. Brands like Rheem, Rinnai, Sanden and Thermann are common in the area, offering options from rheem solar hot water and rheem heat pump hot water through to rinnai solar hot water and high‑performance sanden heat pump systems that are often rated among the best heat pump hot water system choices in Australia.
Typical hot water system price or cost depends on whether you are looking at a straightforward electric hot water installation, a premium heat pump hot water installation, or a full solar hot water installation with roof collectors and a solar hot water tank replacement. Many locals weigh up heat pump vs solar hot water, or solar hot water vs electric hot water, to find the balance between upfront solar hot water price or cost and long‑term savings. For households with existing rooftop solar, a modern electric hot water system paired with a timer or solar diverter can be one of the most efficient hot water system options, effectively turning excess solar into free hot water.
Average annual bill savings for South Granville homes can look like this:
• Old electric to heat pump hot water system: save roughly $350–$700 per year. • Gas storage to heat pump hot water: save around $250–$600 per year. • Gas storage to solar hot water system: save about $300–$650 per year. • Old electric to modern electric hot water system using rooftop solar: save roughly $250–$550 per year.
Over the years, South Granville has steadily embraced efficient hot water. There have been around 110 efficient hot water systems installed in the postcode, including both heat pump and solar hot water systems. Installations picked up in the mid‑2000s, with noticeable spikes in 2009 (16 systems) and 2010 (21 systems), then continued at a modest pace through the 2010s. Even recent years, with a handful of installs, show that interest in electrification and lower running costs is still alive as older units reach end‑of‑life and homeowners look for the best hot water system Australia can offer for their budget.
Hot Water Rebates, Tariffs & Savings
Right now there is strong interest in South Granville in replacing old gas or electric hot water with efficient options like heat pump hot water, newer electric hot water systems or a solar hot water heating system. Federal incentives such as Small‑scale Technology Certificates (STCs) can reduce the effective heat pump hot water price or cost and solar hot water price or cost, acting like an upfront discount. On top of that, NSW hot water rebate programs and heat pump hot water rebates can further cut the cost for eligible households, and there may be electric hot water system rebates for specific all‑electric upgrades. For many South Granville homes, these hot water rebate NSW schemes can slash the system cost by a substantial percentage and shorten payback to just a few years, especially when combined with rooftop solar and smart timers that run the system during solar hours.
Whether you are comparing electric hot water vs gas hot water, or trying to decide between a chromagen solar hot water package and a premium rheem solar hot water or sanden heat pump option, it pays to get local advice. If your current unit is more than 10 years old, running out of hot water, or needing frequent hot water repair, it is likely time to consider an upgrade.
If you live in South Granville and want to cut bills, reduce emissions and make the most of the suburb’s strong solar exposure, now is a good time to review your hot water system. Talk with experienced hot water NSW installers like us, who specialise in heat pump hot water installation, solar hot water repair and solar hot water tank replacement, as well as efficient electric hot water installation. We can help you compare options, tap into the latest hot water rebate NSW incentives, and design an energy efficient hot water system that suits your home, budget and long‑term plans—connect with our trusted local team for personalised advice today.