Hot Water Systems in Terara
The 2540 postcode, covering Terara, Nowra Naval Po, Wreck Bay, Bamarang, Barringella, Basin View, Beecroft Peninsula, Berrara, Bewong, Bolong, Boolijah, Bream Beach, Browns Mountain, Brundee, Buangla, Burrier, Callala Bay, Callala Beach, Cambewarra, Cambewarra Village, Comberton, Comerong Island, Cudmirrah, Culburra Beach, Currarong, Erowal Bay, Ettrema, Falls Creek, Greenwell Point, Hmas Albatross, Hmas Creswell, Huskisson, Hyams Beach, Illaroo, Jerrawangala, Jervis Bay, Kinghorne, Longreach, Mayfield, Meroo Meadow, Mondayong, Moollattoo, Mundamia, Myola, Nowra Hill, Numbaa, Old Erowal Bay, Orient Point, Parma, Pyree, Sanctuary Point, St Georges Basin, Sussex Inlet, Swanhaven, Tallowal, Tapitallee, Tomerong, Tullarwalla, Twelve Mile Peg, Vincentia, Wandandian, Watersleigh, Wollumboola, Woollamia, Worrigee, Worrowing Heights, Wrights Beach, Yalwal and Yerriyong and surrounding areas, is home to around 26,054 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 Terara and the 2540 area, 4,586 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 Terara's climate delivering an average of 4.3 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 2540
4th
State Wide
24th
Australia Wide
Hot Water Installation Terara
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 Terara
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterTerara
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 Terara
Compare heat pump hot water systems suitable for Terara'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 - Terara, 2540
Hot Water Demographics - Terara
Based on the Australian Bureau of Statistics 2021 Census (ABS), Terara has around 26,054 private dwellings, home to approximately 43,985 people. With an average household size of 2.3 people, and around 50 litres of hot water used per person each day in Australia, Terara households use approximately 115 litres of hot water daily, equating to a massive 3.0 million litres of hot water used across the suburb every single day.
Other census insights reinforce Terara's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Terara community is home to 2,934 couple families with children and 967 one-parent families, meaning a large proportion of households face substantial hot water demand. With 5,226 homes owned with a mortgage and 8,495 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.
Terara is converting hot water demand to efficient systems faster than many peers, with 17.6% of dwellings already upgraded.
Hot water systems in Terara
Across Terara and the wider 2540 area, more households are switching from old gas and electric units to an energy efficient hot water system that suits modern living. With an average household size of around 2.3 people and more than 18,000 occupied dwellings in the postcode, reliable hot water is a must – but so is keeping running costs under control. Power prices keep rising, and with Terara’s strong solar exposure averaging about 15.5 MJ/m² a day (roughly 4.3 kWh/m²), it makes real sense to look at a solar hot water system, a heat pump hot water system, or a modern electric hot water system as your next upgrade.
A lot of homes here are owned outright or with a mortgage, so owners are in a good position to invest in long‑term savings. Families and retirees alike are starting to ask whether heat pump vs solar hot water is the smarter choice, and how a new hot water installation can cut bills for years. Moving from older gas or off‑peak electric hot water to an energy efficient hot water system can deliver substantial Annual Hot Water Energy Savings, especially when you combine it with rooftop solar already common across the Shoalhaven.
In Terara and surrounding suburbs, we’re seeing more efficient hot water systems installed every year, particularly where homes already have PV solar. A typical three‑bedroom home’s hot water energy use can be one of the biggest chunks of the power bill, so choosing the most efficient hot water system is a simple way to make a dent in household costs. Brands like Rheem heat pump hot water and Sanden heat pump are popular for all‑electric homes, while Rheem solar hot water, Rinnai solar hot water and Chromagen solar hot water are well‑known options for anyone wanting a full solar hot water heating system.
For many Terara households, the hot water system price or cost is the first concern. That’s where rebates and smart choices help. As a guide, typical average annual bill savings can look like this:
• Old electric to heat pump hot water installation: save around $350–$700 per year. • Gas to heat pump hot water system: save roughly $250–$600 per year. • Gas to solar hot water installation: save about $300–$650 per year. • Old electric to modern electric hot water installation with solar diversion: save around $200–$500 per year.
These ranges depend on usage, tariffs and whether you are using timers or solar‑diversion controls, but they show why Terara locals are re‑thinking electric hot water vs gas hot water and even solar hot water vs electric hot water. When systems age, solar hot water tank replacement or hot water repair can be almost as costly as a new unit, so many people choose to upgrade instead.
Recent data shows 4,586 efficient hot water systems have already been installed in the 2540 postcode, covering both heat pump and solar hot water installation. Installations peaked around 2009–2010, when more than 1,800 systems went in across two years, and there has been a steady stream of upgrades since, with new systems added every year through to 2025. That steady trend shows growing local interest in efficient hot water, home electrification and lower running costs for Terara households.
Hot Water Rebates, Tariffs & Savings
In Terara NSW, more residents are replacing tired gas or electric units with efficient options like heat pump hot water, updated electric hot water systems and solar hot water. Federal incentives such as Small‑scale Technology Certificates (STCs) apply to eligible heat pump and solar hot water systems, effectively acting as an upfront discount. On top of that, state programmes can offer a heat pump hot water rebate, a solar hot water rebate or even an electric hot water system rebate under certain schemes, all helping to reduce the heat pump hot water price or cost and the solar hot water price or cost.
For many Terara homes, these hot water rebate NSW offers can cut the system cost by a substantial percentage and shorten payback periods to just a few years, especially when you run your hot water system off solar during the day. Using timers or solar‑diversion controls to heat water when the sun is shining can turn a good system into the best heat pump hot water system or best hot water system Australia has to offer for your situation.
If your hot water is more than 10 years old, noisy, or needing frequent hot water repair, it may be time to look at a new hot water system NSW‑wide standard. Whether you are considering Rheem solar hot water, Rinnai solar hot water, a Sanden heat pump or another energy efficient hot water system, it pays to get local advice.
Thinking about a hot water upgrade in Terara? Now is a smart time to review your options, from replacing gas with a heat pump hot water system to installing a solar hot water heating system or efficient electric hot water. Work with experienced hot water installers like us – heat pump and solar hot water specialists who understand local tariffs, hot water rebate NSW options and Terara’s strong solar potential. An efficient hot water system can trim your bills, cut emissions and future‑proof your home. Reach out to trusted local experts for personalised advice and see which solution suits your household best.