Hot Water Systems in Parliament House
The 5000 postcode, covering Parliament House, Adelaide Bc, Adelaide, City West Campus, Halifax Street, Hutt Street, Rundle Mall, Station Arcade and Sturt Street and surrounding areas, is home to around 10,257 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 Parliament House and the 5000 area, 314 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 Parliament House's climate delivering an average of 4.9 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 5000
41st
State Wide
788th
Australia Wide
Hot Water Installation Parliament House
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 Parliament House
* Data from the Bureau of Meteorology. Closest station: N/A.
Solar Powered Hot WaterParliament House
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 Parliament House
Compare heat pump hot water systems suitable for Parliament House'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 - Parliament House, 5000
Hot Water Demographics - Parliament House
Based on the Australian Bureau of Statistics 2021 Census (ABS), Parliament House has around 10,257 private dwellings, home to approximately 14,617 people. With an average household size of 1.8 people, and around 50 litres of hot water used per person each day in Australia, Parliament House households use approximately 90 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 Parliament House's suitability for energy-saving improvements like energy-efficient or solar-powered hot water. The Parliament House community is home to 437 couple families with children and 187 one-parent families, meaning a large proportion of households face substantial hot water demand. With 1,234 homes owned with a mortgage and 1,445 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.
Parliament House is converting hot water demand to efficient systems faster than many peers, with 3.1% of dwellings already upgraded.
Hot water systems in Parliament House
In Parliament House and the wider Adelaide CBD, more owners and body corporates are rethinking their hot water system. With energy prices climbing and a big shift away from gas, efficient options like a heat pump hot water system, solar hot water system and modern electric hot water system are becoming the norm rather than the exception. In a postcode where the average household size is only 1.8 people but there are more than 8,200 occupied dwellings, the focus is on reliable, low‑running‑cost hot water for apartments, townhouses and commercial tenancies.
Parliament House benefits from strong sunshine year‑round. North Adelaide’s average annual solar exposure is about 17.4 MJ/m² per day, or roughly 4.8 kWh/m² per day, which is ideal for both a solar hot water heating system and high‑efficiency heat pump hot water. For many residents paying a median rent of around $400 a week, or owners with mortgages of about $1,733 a month, upgrading from an old gas or resistive electric unit to a more energy efficient hot water system is a logical way to trim bills. Swapping to the most efficient hot water system can deliver substantial annual hot water energy savings, especially when paired with rooftop solar.
Across the 5000 postcode there is a mix of compact apartments and larger townhouses, so hot water demand varies. Smaller households often prefer a compact electric hot water installation, while families and busy share houses look to a larger heat pump hot water installation or solar hot water installation to handle morning and evening peaks. In this part of SA, hot water can account for a quarter or more of total household electricity use, so choosing the best hot water system Australia has to offer for your situation really matters.
Typical bill savings for Parliament House homes and businesses can look like this:
• Replacing an old electric hot water system with a quality heat pump hot water system: save around $300–$700 per year. • Switching gas to heat pump: save roughly $250–$600 per year, depending on gas tariffs. • Switching gas to a solar hot water system: save around $200–$500 per year. • Upgrading an old electric unit to a modern electric hot water installation backed by rooftop solar: save $200–$500 per year.
Brands like Rheem heat pump hot water and Rheem solar hot water are common in larger residential blocks and commercial plantrooms, while Sanden heat pump systems are popular with owners chasing the best heat pump hot water system for ultra‑low running costs and quiet operation. Rinnai solar hot water and Chromagen solar hot water solutions are often chosen where roof space and solar access are good, especially on low‑rise buildings. When tanks eventually fail, a timely solar hot water tank replacement or like‑for‑like heat pump upgrade can be a smart move rather than patching an old unit with repeated hot water repair visits.
In the 5000 postcode there have already been 314 efficient hot water systems installed, combining heat pump and solar hot water. Installation activity peaked in the early 2000s, with 99 systems installed in 2003, and has continued steadily with regular installs each year through to 2025. Recent years show a gentle uptick as more residents look at heat pump vs solar hot water and even solar hot water vs electric hot water when their old units reach the end of their life. This steady stream of solar hot water repair and replacement work reflects a broader push towards electrification, lower running costs and cleaner hot water SA‑wide.
Hot Water Rebates, Tariffs & Savings
Around Parliament House, interest in replacing ageing gas and electric units with efficient heat pumps, new electric hot water or a solar hot water heating system is being helped along by generous incentives. Australian Federal Government Small‑scale Technology Certificates (STCs) apply to approved systems, effectively acting as an upfront solar hot water rebate or heat pump hot water rebate that reduces the hot water system price at the point of sale. South Australian programs can also support efficient hot water SA upgrades, and some all‑electric homes can access better electricity tariffs.
With these incentives, the heat pump hot water price or solar hot water price can be cut by a substantial percentage, meaning the payback period is often only a few years. Combine that with rooftop solar, timers or solar‑diversion controls, and a solar hot water vs electric hot water comparison usually comes out strongly in favour of efficient options. Even where an electric hot water system rebate or hot water rebate SA scheme is not directly available, running costs are still much lower than old gas hot water, especially when you factor in long‑term tariff rises.
If you live or work around Parliament House and your current unit is leaking, noisy or simply getting old, it is a good time to check whether your building is ready for a hot water upgrade. Whether you are moving from gas to a heat pump, comparing heat pump vs solar hot water, or weighing electric hot water vs gas hot water in a compact apartment, experienced local installers can help you choose the right energy efficient hot water system. With growing interest in sustainability in the CBD and strong solar potential, efficient hot water systems can reduce bills, cut emissions and future‑proof your property. For personalised advice on hot water SA options, hot water installation, electric hot water system rebate eligibility and ongoing hot water repair support, connect with trusted local experts and explore what is possible in Parliament House today.
Nearby Suburbs
See Also
- Learn more about solar power in Parliament House
- Learn more about solar batteries in Parliament House
- Learn more about using split systems for heating in Parliament House
- Learn more about air-conditioning in Parliament House
- Hot water in Hutt Street, SA
- Using efficient hot water systems in Rundle Mall, SA
