Hot Water Systems in Holmes
The 0812 postcode, covering Holmes, Karama, Leanyer, Malak, Marrara, Northlakes, Sanderson, Woodleigh Gardens, Wulagi, Anula and Buffalo Creek and surrounding areas, is home to around 6,623 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 Holmes and the 0812 area, 2,535 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 Holmes's climate delivering an average of 5.9 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 0812
5th
State Wide
77th
Australia Wide
Hot Water Installation Holmes
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 Holmes
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterHolmes
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 Holmes
Compare heat pump hot water systems suitable for Holmes'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 - Holmes, 0812
Hot Water Demographics - Holmes
Based on the Australian Bureau of Statistics 2021 Census (ABS), Holmes has around 6,623 private dwellings, home to approximately 17,240 people. With an average household size of 2.8 people, and around 50 litres of hot water used per person each day in Australia, Holmes households use approximately 140 litres of hot water daily, equating to a massive 0.9 million litres of hot water used across the suburb every single day.
Other census insights reinforce Holmes's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Holmes community is home to 1,552 couple families with children and 533 one-parent families, meaning a large proportion of households face substantial hot water demand. With 2,487 homes owned with a mortgage and 1,436 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.
Holmes is converting hot water demand to efficient systems faster than many peers, with 38.3% of dwellings already upgraded.
Hot water systems in Holmes
In Holmes, more locals are swapping old gas and electric units for an energy efficient hot water system that can handle the Top End climate. With an average household size of around 2.8 people and more than 6,200 dwellings across 0812, reliable hot water is non‑negotiable – but power prices mean many families are now looking hard at a heat pump hot water system, solar hot water system or efficient electric hot water system instead of just replacing like‑for‑like.
Holmes is perfectly placed for efficient hot water upgrades. The nearby Karama weather station records about 21.4 MJ/m² of solar energy a day on average – roughly 6 kWh/m² – which is ideal for a solar hot water heating system or a modern heat pump hot water system that sips electricity while pulling free heat from the air. With median total household income over $2,000 a week and a big mix of owner‑occupiers and renters, upgrading from older gas or electric hot water to efficient hot water technology is a smart way to lock in long‑term savings. Many Holmes homeowners are already seeing strong annual hot water energy savings by moving to the most efficient hot water system they can fit and afford.
Across the 0812 postcode, thousands of separate houses and townhouses drive strong hot water demand, especially for families and multi‑bathroom homes. Hot water can be one of the biggest single energy users in a typical Holmes home, so choosing the best hot water system Australia has to offer for your situation really matters. Brands like Rheem heat pump hot water and Sanden heat pump systems are popular for low running costs, while Rheem solar hot water, Rinnai solar hot water and Chromagen solar hot water are common choices when pairing a solar hot water installation with rooftop PV.
Average annual bill savings in Holmes can be substantial:
• Old electric to heat pump hot water installation: save roughly $400–$800 per year. • Gas to heat pump: save around $300–$700 per year. • Gas to solar hot water installation: save about $250–$600 per year. • Old electric to modern electric hot water installation with solar: save roughly $300–$700 per year.
In Holmes and the wider 0812 area, there have already been 2,535 efficient hot water systems installed, combining both heat pump and solar hot water systems. Installations ramped up strongly from the early 2000s, peaking around 2007–2012 when annual installs regularly topped 150 units, and have continued at a steady clip through to 2024 and 2025. This long‑term trend shows growing local interest in electrification, lower running costs and moving away from gas hot water. As more homes add rooftop solar, solar hot water vs electric hot water is becoming an easy decision, and many are also planning for solar hot water tank replacement or heat pump hot water repair as systems age.
Hot Water Rebates, Tariffs & Savings
Right across Holmes, there is strong interest in replacing old gas or electric hot water with efficient options like heat pumps, newer electric hot water systems or a quality solar hot water system. Federal incentives such as Small‑scale Technology Certificates (STCs) apply to eligible heat pump and solar hot water systems, effectively acting as an upfront solar hot water rebate or heat pump hot water rebate that cuts the solar hot water price / cost or heat pump hot water price / cost by a meaningful amount. On top of that, NT‑based programs and retailer offers can operate as a hot water rebate nt or electric hot water system rebate, depending on the scheme, making electric hot water vs gas hot water and heat pump vs solar hot water much more attractive price‑wise.
For many Holmes households, these rebates and discounts can reduce the system hot water system price / cost by a substantial percentage and shorten the payback period to just a few years, especially when paired with rooftop solar and smart controls. Using timers or solar‑diversion technology to run your electric hot water installation or heat pump when the sun is shining can turn your setup into a truly energy efficient hot water system. Over time, typical households can save hundreds of dollars a year on bills, while enjoying reliable hot water nt all year round.
If you live in Holmes and you are sitting on an older gas or electric unit, now is a good time to check whether your home is ready for a hot water upgrade – whether that is a heat pump hot water installation, solar hot water vs electric hot water changeover, or even solar hot water repair and solar hot water tank replacement. With strong local solar, growing interest in sustainability and rising energy costs, working with experienced hot water installers like us – heat pump and solar hot water specialists – can help you cut bills, lower emissions and future‑proof your home. Reach out to trusted local experts for personalised advice on hot water repair, new installs and the best heat pump hot water system for your place in Holmes.