Hot Water Systems in Costello
The 0872 postcode, covering Costello, Aherrenge, Ali Curung, Alice Springs, Amata, Amata, Amoonguna, Antewenegerrde, Areyonga, Ayers Rock, Docker River, Erldunda, Ernabella, Ernabella (pukatja), Finke, Fregon, Gibson Desert North, Haasts Bluff, Imampa, Indulkana, Indulkana (iwantja), Jay Creek, Kings Creek Station, Kintore, Macdonnell Range, Mulga Bore, Murputja Homelands, Pitjantjatjara Homelands, Santa Teresa, Telegraph Station, Thangkenharenge, Ti Tree, Uluru, Umpangara, Urapuntja, Wanarn, Warakurna, Willowra, Yuelamu, Yuendumu, Yulara, Ampilatwatja, Anangu Pitjantjatjara Yankunytjatjara, Anatye, Anmatjere, Atitjere, Ayers Range South, Barrow Creek, Burt Plain, Canteen Creek, Chilla Well, Davenport, De Rose Hill, Engawala, Ghan, Gibson Desert South, Hale, Hart, Hart Range, Hermannsburg, Hugh, Imanpa, Ininti Store, Irrunytju, Iwantja, Kalka, Kaltjiti, Kaltukatjara, Kanpa, Kanpi, Kiwirrkurra, Kulgera, Kunparrka, Lake Mackay, Lambina, Laramba, Mantamaru, Mereenie, Mimili, Mount Liebig, Mount Zeil, Murputja, Mutitjulu, Namatjira, Napperby Station, Ngaanyatjarra-giles, Nyapari, Nyirripi, Papulankutja, Papunya, Patjarr, Petermann, Pipalyatjara, Pukatja, Sandover, Simpson, Tanami, Tara, Tieyon, Titjikala, Tjirrkarli, Tjukurla, Umuwa, Wallace Rockhole, Watarru, Watinuma, Wilora, Wingellina, Wutunugurra and Yunyarinyi and surrounding areas, is home to around 4,476 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 Costello and the 0872 area, 606 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 Costello's climate delivering an average of 6.3 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 0872
10th
State Wide
490th
Australia Wide
Hot Water Installation Costello
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 Costello
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterCostello
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 Costello
Compare heat pump hot water systems suitable for Costello'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 - Costello, 0872
Hot Water Demographics - Costello
Based on the Australian Bureau of Statistics 2021 Census (ABS), Costello has around 4,476 private dwellings, home to approximately 12,789 people. With an average household size of 3.6 people, and around 50 litres of hot water used per person each day in Australia, Costello households use approximately 180 litres of hot water daily, equating to a massive 0.8 million litres of hot water used across the suburb every single day.
Other census insights reinforce Costello's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Costello community is home to 1,130 couple families with children and 605 one-parent families, meaning a large proportion of households face substantial hot water demand. With 19 homes owned with a mortgage and 135 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.
Costello is converting hot water demand to efficient systems faster than many peers, with 13.5% of dwellings already upgraded.
Hot water systems in Costello
In Costello, hot water is a big chunk of the power bill, so more locals are looking at an energy efficient hot water system instead of sticking with old gas or electric units. With an average household size of 3.6 people and many family homes spread across 3,228 dwellings, a reliable hot water system that does not chew through power is a smart upgrade. Median household income sits around $1,213 a week, so shifting to a modern heat pump hot water system, solar hot water system or efficient electric hot water system can free up real money in the budget every year.
Costello’s climate is perfect for efficient hot water. The area enjoys about 22.5 MJ/m² of solar each day on average, which is roughly 6.25 kWh/m² of sunshine. That is excellent for a solar hot water heating system or a heat pump hot water system that thrives in warm conditions. For many homes, moving from older gas or resistive electric hot water to a modern energy efficient hot water system can deliver strong Annual Hot Water Energy Savings, especially when paired with rooftop solar. With a young median age of 29 and lots of families, demand for dependable, long-lasting hot water is only growing.
Across the 0872 postcode, hot water energy use is a major slice of total household consumption, particularly in larger three and four bedroom homes (over 1,800 dwellings). In this context, choosing the most efficient hot water system matters. Brands like Rheem heat pump hot water, Rinnai solar hot water, Sanden heat pump and Chromagen solar hot water are all popular options for those chasing the best heat pump hot water system or the best hot water system Australia can offer for remote and regional conditions. When you compare heat pump vs solar hot water, both can work brilliantly here; the right choice often comes down to roof space, budget and whether you already have solar.
Typical bill savings in Costello from a smart hot water upgrade can look like:
• Old electric to heat pump hot water installation: $400–$800 per year • Gas to heat pump: $350–$700 per year • Gas to solar hot water installation: $300–$650 per year • Old electric to modern electric hot water installation with solar: $250–$500 per year
There have already been 606 efficient hot water installations (heat pump and solar hot water) recorded in the 0872 area, showing strong local interest. Installations peaked in the early 2000s, then surged again from 2018 onwards, with steady numbers through 2019, 2020 and 2021. This recent growth reflects a clear shift in Costello towards electrification, lower running costs and moving away from gas hot water. As systems age, there is also ongoing demand for hot water repair, solar hot water repair and solar hot water tank replacement to keep existing setups running efficiently.
When you are weighing up solar hot water vs electric hot water, or electric hot water vs gas hot water, it helps to understand rebates. Costello homeowners can usually tap into Federal Small-scale Technology Certificates (STCs) on eligible heat pump and solar hot water systems, which act like an upfront discount and can trim the hot water system price or cost by a substantial amount. On top of that, NT-based heat pump hot water rebate and solar hot water rebate programs may apply from time to time, cutting the heat pump hot water price or cost and solar hot water price or cost even further. In some cases, an electric hot water system rebate can support efficient all-electric upgrades too. With the right hot water rebate NT residents can bring the payback period down to just a few years, especially if they also use timers or solar diversion to run their system when solar is producing.
Whether you need hot water installation for a new build, hot water repair on an older unit, or are planning a full heat pump hot water installation or solar hot water installation, it pays to work with experienced local installers who understand hot water NT conditions. If your current unit is nearing the end of its life, now is a good time to check if your home is ready for a hot water upgrade—switching from gas or an old electric unit to a heat pump or solar hot water system. With Costello’s strong solar exposure and growing interest in sustainability, efficient hot water systems can help cut bills, reduce emissions and future-proof your home. Connect with trusted local experts for personalised advice and find the right hot water system for your place in Costello today.