Hot Water Systems in Kakadu
The 0822 postcode, covering Kakadu, Acacia Hills, Bees Creek, Border Store, Cox Peninsula, Croker Island, Daly River, Darwin Mc, Fleming, Goulbourn Island, Gunn Point, Hayes Creek, Lambells Lagoon, Livingstone, Maningrida, Mcminns Lagoon, Middle Point, Millwood, Nguiu, Oenpelli, Point Stephens, Pularumpi, Pulumpa, Southport, Umbakumba, Virginia, Wadeye, Wagait Beach, Weddell, Winnellie, Woolaning, Angurugu, Anindilyakwa, Annie River, Bathurst Island, Belyuen, Black Jungle, Blackmore, Burrundie, Bynoe, Bynoe Harbour, Camp Creek, Channel Island, Charles Darwin, Charlotte, Claravale, Cobourg, Collett Creek, Coomalie Creek, Daly, Darwin River Dam, Delissaville, Douglas-daly, East Arm, East Arnhem, Elrundie, Eva Valley, Finniss Valley, Fly Creek, Freds Pass, Galiwinku, Glyde Point, Goulburn Island, Gunbalanya, Hidden Valley, Hotham, Hughes, Koolpinyah, Lake Bennett, Litchfield Park, Lloyd Creek, Mandorah, Mapuru, Maranunga, Margaret River, Marrakai, Mickett Creek, Milikapiti, Milingimbi, Milyakburra, Minjilang, Mount Bundey, Murrumujuk, Nauiyu, Nemarluk, Nganmarriyanga, Numbulwar, Numburindi, Peppimenarti, Pirlangimpi, Point Stuart, Rakula, Ramingining, Robin Falls, Rum Jungle, Sandpalms Roadhouse, Stapleton, Thamarrurr, Tipperary, Tivendale, Tiwi Islands, Tortilla Flats, Tumbling Waters, Vernon Islands, Wak Wak, Warruwi, West Arnhem, Wickham, Wishart and Wurrumiyanga and surrounding areas, is home to around 6,681 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 Kakadu and the 0822 area, 1,020 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 Kakadu's climate delivering an average of 6.1 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 0822
7th
State Wide
290th
Australia Wide
Hot Water Installation Kakadu
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 Kakadu
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterKakadu
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 Kakadu
Compare heat pump hot water systems suitable for Kakadu'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 - Kakadu, 0822
Hot Water Demographics - Kakadu
Based on the Australian Bureau of Statistics 2021 Census (ABS), Kakadu has around 6,681 private dwellings, home to approximately 23,243 people. With an average household size of 3.8 people, and around 50 litres of hot water used per person each day in Australia, Kakadu households use approximately 190 litres of hot water daily, equating to a massive 1.3 million litres of hot water used across the suburb every single day.
Other census insights reinforce Kakadu's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Kakadu community is home to 2,128 couple families with children and 887 one-parent families, meaning a large proportion of households face substantial hot water demand. With 843 homes owned with a mortgage and 797 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.
Kakadu is converting hot water demand to efficient systems faster than many peers, with 15.3% of dwellings already upgraded.
Hot water systems in Kakadu
In Kakadu, more locals are rethinking their hot water system and switching to energy efficient options like a heat pump hot water system, solar hot water system and modern electric hot water system. With an average household size of around 3.8 people and a young median age of 30, families and shared homes across the 5,400‑plus dwellings in 0822 put serious demand on hot water every day. Rising energy costs and tight household budgets (with median household income around $1,347 a week) make upgrading from older gas or electric hot water to something more efficient a very logical next step.
Kakadu’s climate is ideal for efficient hot water. Nearby Jabiru Airport records an impressive 22.0 MJ/m² of solar exposure annually, which is roughly 6.1 kWh per square metre per day. That strong Top End sunshine helps a solar hot water system or solar hot water heating system perform at its best, and also supports very efficient operation for a quality heat pump hot water system. When you combine this with the region’s push towards electrification and renewables, it is easy to see why more homes and businesses are moving away from gas hot water and old resistive units.
Across the 0822 postcode, separate houses dominate, with more than 4,700 detached homes and many larger families. That means higher daily hot water demand and a bigger opportunity for savings. Hot water can easily account for a quarter of a home’s energy use in the NT, so choosing the most efficient hot water system can make a real difference to bills. Local installers are seeing strong interest in brands like Rheem heat pump hot water, Sanden heat pump systems and solar ranges such as Rheem solar hot water and Rinnai solar hot water, alongside robust options from Thermann and Solahart for both solar and electric hot water installation.
For many Kakadu households, the key question is heat pump vs solar hot water, or even solar hot water vs electric hot water. A modern electric hot water system, paired with rooftop solar and a timer, can still be an energy efficient hot water system, but in most cases a quality heat pump or solar hot water installation will deliver the most efficient hot water system performance and the biggest cuts to running costs.
Typical annual bill savings in Kakadu look like this:
• Old electric to heat pump hot water installation: save around $400–$800 per year. • Gas to heat pump hot water: save roughly $300–$700 per year. • Gas to solar hot water installation: save about $250–$600 per year. • Old electric to modern electric hot water with solar: save around $200–$500 per year.
Local demand is backed up by the numbers. In Kakadu, there have already been 1,020 efficient hot water systems installed, combining both heat pump and solar hot water repair and replacement jobs and brand‑new systems. Installations were modest in the early 2000s, but picked up sharply from 2008, with strong years in 2015, 2018 and a peak in 2019. Even in recent years, from 2020 through to 2024–2025, there has been a steady stream of new systems going in, showing ongoing interest in lower running costs, hot water repair upgrades and all‑electric homes.
Hot Water Rebates, Tariffs & Savings
Around Kakadu and the NT more broadly, many households are now looking to replace old gas or electric hot water with efficient options such as a heat pump hot water system, solar hot water system or high‑efficiency electric hot water system. Federal incentives like Small‑scale Technology Certificates (STCs) can reduce the solar hot water price / cost and heat pump hot water price / cost at the point of sale, while NT and other state‑based programmes can offer additional heat pump hot water rebate or solar hot water rebate support at different times. There are also schemes that can help with electric hot water system rebate offers when moving off gas.
These hot water rebate NT incentives can effectively trim the upfront hot water system price / cost by a substantial percentage, especially for systems like Rheem solar hot water, Rinnai solar hot water, Chromagen solar hot water or a premium Sanden heat pump. When you combine rebates with good tariffs, timers or solar‑diversion controls, many Kakadu households see payback periods cut to just a few years and enjoy hundreds of dollars per year in savings. Over the life of the system, that can mean thousands of dollars kept in your pocket while also cutting emissions.
If you are wondering whether to go for electric hot water vs gas hot water, or comparing heat pump vs solar hot water for your place, it is worth getting tailored advice. Many systems also offer solar hot water tank replacement options, hot water repair services and upgrades that keep your set‑up running efficiently for longer.
If your hot water is older, noisy or unreliable, now is a good time to check whether your Kakadu home is ready for a hot water upgrade. Whether you are moving from gas to an all‑electric home or simply want a more energy efficient hot water system, experienced local installers can help you compare the best hot water system Australia options for your budget and block. Talk with trusted hot water NT specialists for personalised advice on heat pump hot water installation, solar hot water repair or electric hot water installation, and start reducing bills while future‑proofing your home today.