Hot Water Systems in Big Hill
The 2579 postcode, covering Big Hill, Brayton, Exeter, Marulan, Marulan South, Penrose, Tallong and Wingello and surrounding areas, is home to around 2,070 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 Big Hill and the 2579 area, 170 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 Big Hill'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 2579
282nd
State Wide
1112nd
Australia Wide
Hot Water Installation Big Hill
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 Big Hill
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterBig Hill
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.
Want Solar Finance Options?
Compare lenders and get tailored loan offers.
Heat Pump Hot Water Systems for Big Hill
Compare heat pump hot water systems suitable for Big Hill'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 - Big Hill, 2579
Hot Water Demographics - Big Hill
Based on the Australian Bureau of Statistics 2021 Census (ABS), Big Hill has around 2,070 private dwellings, home to approximately 4,314 people. With an average household size of 2.5 people, and around 50 litres of hot water used per person each day in Australia, Big Hill households use approximately 125 litres of hot water daily, equating to a massive 0.3 million litres of hot water used across the suburb every single day.
Other census insights reinforce Big Hill's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Big Hill community is home to 360 couple families with children and 68 one-parent families, meaning a large proportion of households face substantial hot water demand. With 634 homes owned with a mortgage and 743 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.
Big Hill is converting hot water demand to efficient systems faster than many peers, with 8.2% of dwellings already upgraded.
Hot water systems in Big Hill
Across Big Hill and the 2579 postcode, more households are rethinking their old gas and electric hot water system and moving to 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 about 2.5 people and mostly separate houses, hot water demand here is steady and predictable, so choosing the most efficient hot water system can make a real dent in power bills. Median household incomes sit around $1,589 a week, and with many homes owned outright or with a mortgage, upgrading to an energy efficient hot water system is a logical next step in reducing running costs and future‑proofing the home.
Big Hill enjoys strong solar exposure, with mean daily sunlight of around 16.4 MJ/m² a day – roughly 4.5 to 5 kWh/m². That level of sunshine is ideal for a solar hot water heating system or heat pump hot water, helping you maximise free energy and cut reliance on the grid. When you look at electric hot water vs gas hot water, efficient electric options powered by rooftop solar or off‑peak tariffs can now come out well ahead. Many locals are comparing heat pump vs solar hot water to see which suits their roof space, budget and hot water usage best, often aiming for the most efficient hot water system they can reasonably afford.
In 2579, there have already been 170 efficient hot water installations, including both heat pump hot water installation and solar hot water installation. Installations peaked around 2009–2010, with 34 systems in 2009 and 21 in 2010, and there has been renewed activity again in 2024 and 2025. This steady stream of hot water installation work shows growing interest in electrification, lower bills and cleaner energy across Big Hill. Many homes are pairing a rheem solar hot water or chromagen solar hot water system with existing PV, while others are opting for premium heat pumps like a sanden heat pump or rheem heat pump hot water as a quiet, efficient replacement when a solar hot water tank replacement is not practical.
Typical hot water energy use can be a big share of household consumption, especially for families. Swapping an older unit for one of the best hot water system Australia brands can deliver meaningful savings. Below are realistic average annual bill savings for Big Hill homes making the switch:
• Old electric to heat pump hot water system: $400–$800 per year • Gas storage to heat pump hot water system: $300–$600 per year • Gas storage to solar hot water system: $250–$550 per year • Old electric to modern electric hot water installation with solar PV: $250–$500 per year
Brands like Rheem and Rinnai are common choices for both solar hot water vs electric hot water upgrades, offering rheem solar hot water, rheem heat pump hot water and rinnai solar hot water options. For those chasing the best heat pump hot water system performance, high‑end units like a sanden heat pump are popular for their low running costs, especially when linked with rooftop solar. When something goes wrong, prompt hot water repair or solar hot water repair is essential to keep comfort levels up and hot water system price / cost down over the long term.
Hot Water Rebates, Tariffs & Savings
Around Big Hill NSW, more people are replacing old gas or electric units with efficient options, helped along by hot water rebate nsw programs. Federal incentives like Small‑scale Technology Certificates (STCs) apply to eligible solar hot water systems and heat pump hot water systems, effectively acting as an upfront solar hot water rebate or heat pump hot water rebate. NSW state programs can also support efficient electric hot water installation and heat pump hot water installation for existing homes, meaning the heat pump hot water price / cost or solar hot water price / cost can be cut by a substantial percentage before you even start.
For many Big Hill households, combining rebates with smart tariffs and solar makes the upgrade even more attractive. A typical efficient hot water upgrade can save hundreds of dollars a year, and when you add timers or solar diversion so your electric hot water system runs mainly on rooftop solar, the payback period can shorten dramatically. With the right design, an energy efficient hot water system can be one of the quickest wins on the path to an all‑electric home.
If your current unit is ageing, noisy or costing more than it should, now is a good time to see whether a solar hot water system, sanden heat pump, rheem heat pump hot water or other efficient option is right for your place in Big Hill. Talk with experienced local hot water installers like us, who specialise in heat pump and solar hot water installation and hot water repair. We understand Big Hill’s climate, rising energy costs and growing interest in sustainability, and can help you compare solar hot water vs electric hot water, check eligibility for a hot water rebate nsw, and choose the best heat pump hot water system or solar hot water heating system for your needs. Reach out for personalised advice on hot water Big Hill and discover how a smarter system can cut bills, reduce emissions and future‑proof your home.