FAQs

Frequently Asked Questions

Our Program

The Solar Savers program offers a wide range of industry-leading products and services for an all-electric future, including:

• Solar panels and inverters
• Battery storage
• Heat pump hot water systems
• Split system heating & cooling
• Electric vehicle chargers
• Induction cooktops
• Insulation
• Draught proofing
• Home energy assessments

Visit our products page to learn more

Every property is unique and there is no one-size-fits-all approach to energy upgrades.

Sustainability Victoria data shows the running costs in an average Victorian home are 43% heating, 17% water heating, 6% cooking, 4% cooling.

Making sure your home is well insulated, free from draughts, and switching to all-electric appliances is the best way help you stay cosy and cut energy bills. You can then maximise your savings and help power it all with solar power and batteries.

Find out where you’re losing money with a professional home energy assessment.

Solar Savers is partnered with 19 local councils across Greater Melbourne and the surrounding areas. Our sister program, Goulburn Murray Solar Savers, covers a further 5 councils in the Goulburn Murray region.

  • Banyule City Council
  • Bass Coast Shire
  • Boroondara City Council
  • Brimbank City Council
  • Cardinia Shire Council
  • Casey City Council
  • Glen Eira City Council
  • Hobsons Bay City Council
  • City of Kingston
  • Knox City Council
  • Manningham City Council
  • Maroondah City Council
  • Merri-bek City Council
  • City of Monash
  • City of Stonnington
  • Whitehorse City Council
  • City of Whittlesea
  • City of Yarra
  • Yarra Ranges Council

Unfortunately, the Solar Savers program is only available to residents and business owners in participating council areas. We recommend you ask your local council if they have any support or programs available in your area.

Solar PV

With a solar PV system, during the daytime when the sun is out, you use free power from your solar panels so you don’t need to purchase as much electricity.

Our installers will be able to determine if the trees or buildings cast any shading over your roof and in turn affect the efficiency of solar panels. They use an aerial imagery program, Nearmaps, and view your property during all times of the day across the year to help work out where to place the panels. If there is some shading, there are options available which can improve the efficiency of your PV system, such as optimisers or micro inverters. Our installer will discuss these options with you.

When you enquire with Solar Savers, our expert installers will recommend a solar system size that matches your roof space, future goals and household electricity consumption.

In energy, a tariff refers to how you are charged for electricity or gas usage (the variable part of your bill).

The feed-in tariff is the amount your electricity retailer pays you for any excess power your solar panels generate.

As of 1 July 2025, there will be no minimum feed-in tariff. Electricity retailers may set their own feed-in tariffs, however, these can’t be below zero cents per kilowatt-hour ($0.00/kWh). Find out more at the Essential Services Commission website.

Adding a battery to your solar PV system allows you to store excess electricity generated by solar panels for use when the sun isn’t shining. If your current electricity bill is over $500 per quarter and you use a lot of energy during the night, you may want to consider adding a battery to your system. You can ask our trusted installers whether batteries are right for you.

Your solar panels produce free and clean energy during the day, especially in the sunnier months of the year. Try and use appliances such as washing machines, dishwashers and pool heating during the day to make the most of the energy you are producing.

Please also note, after you have your system installed, your electricity retailer may change your electricity charges (how much you pay for electricity). Once your system has been installed and connected to the grid, we suggest that you wait three months to review how your energy use is shaping up, then shop around the best energy deal for your usage. You can do this by heading to the independent Victorian Energy Compare website.

You may have your electricity bill updated as a result of the installation. Installing solar might impact your controlled load or off-peak tariffs so it’s a good idea to understand how your bill works and how it will be affected. We recommend you check with your electricity retailer about the possible change to your tariff structure to ensure you have the most accurate information for your household.

Solar panels are designed to be durable and generally require very little maintenance. Installing panels on an angle enables the rain and wind to clear away dirt, leaves and debris. During the dry season – or if you have panels installed flat – you can periodically hose down panels to ensure dirt isn’t obstructing the sun’s rays. Solar Savers installers provide quality, long-term product and performance warranties to maintain your system’s efficiency over their twenty-five-year life.

Yes, enquire through the registration form and our solar installers will assess your property and advise if and how they can upgrade your system. Note, homeowners with an existing system installed in the last ten years will not be eligible for the Solar Victoria rebate.

​In the instance that parts of your system need replacing, it’s always best to call the company who installed the system. If panels are losing efficiency and still under a performance/power output warranty, your solar installer will send someone to assess the situation and either fix the problem or replace the panels. If your panels sustain physical damage, that’s often covered under a separate equipment warranty, or under your homeowners’ insurance.

Battery Storage

No. Most homes with solar currently do not have battery storage. If you are fine to draw energy from the grid when the sun isn’t shining, and are prepared to be off-line when there’s a power outage, then solar only is just fine.

Like solar panels, battery performance naturally degrades over time until it reaches a point where it is no longer useful or recommended to continue operating.

Factors that influence the lifespan of a lithium-ion solar battery are the battery type, usage, ambient temperature, manufacturer/model of the battery, and maintenance. Lithium-ion batteries offer 500-1000 cycles before degradation and have an operational lifespan of 10+ years. However, if a lithium-ion battery is affected by high temperatures, or deeply drained at any time, this affects that lifespan.

Some home battery systems can power your home in the event of a power cut, but not all.

Batteries need to have an ‘islanding’ capability to ensure there is no risk of any form of electricity generation creating a risk to people working on the lines to restore power. To get past this, backup battery systems can have a relay to physically disconnect the electricity supply in a building from the grid (called islanding). It detects a drop in voltage on the grid in the event of a power outage, and disconnects the home from the grid.

This depends on the size and energy requirements of your home. The average household uses between 8-10 kWh of electricity per day.

Home storage batteries start at around 2.5 to 5 kWh in capacity for small systems, up to large systems at 13 to 15 kWh. You will generally need to determine how much energy you use at night, particularly if you intend to maximise your solar use during the day when the sun is shining. Take into account your fridge, TV, lights, heating and cooling etc.

Bear in mind that during winter there may be times when you need to draw from the grid if there hasn’t been enough sun to add to the batteries.

Heat Pump Hot Water

Much the same as a conventional hot water system, heat pump hot water systems are easy to install and many feature flexible tank configurations in both stainless steel and glass lined options.

The CO2 Heat Pump and either Stainless Steel or Glass Lined Enamel storage tanks can generally be located up to 10 metres apart horizontally, or 5 metres vertically. Installation requires a licensed plumber and an electrician.

Yes. In countries such as Germany, or those in Scandinavia, whole towns have long been heated with giant industrial heat pumps. Norway was just recently announced as having the highest penetration of heat pumps in the world, with six out of ten households having heat pumps installed.

Heat pump hot water systems can operate effectively between in temperatures as low as -10ºC without the need for an electric backup/booster element. Some also are fitted with inbuilt freeze protection, making them suitable for all Australian conditions and climate variations.

A 160 litre tank on your system will typically service a two person household, ranging up to a 400 litre tank which will normally service a five person household. Our installers will help you make the right decision by reviewing:

  • Your geographic location
  • How many people live your household
  • Your household water demands
  • The water quality in your area

Combining your heat pump hot water system with your solar PV system enhances the reduction in energy consumption and costs.

The average electric element hot water system has an energy input of 15 kWh for 315 L of hot water delivery. However a heat pump system of the same size has an average of 3 kWh electric input.

The systems installed through Solar Savers are designed to consume excess PV during peak sun hours to maximise savings and take advantage of the energy already created rather than exporting it back to the grid. You can think of it like having a virtual battery for your home.

Most systems also come with Smart Controllers to allow the customisation of how and when the hot water system works.

A heat-pump hot water system uses much less electricity than an electric storage hot water system.

It does this by using electricity to drive the compressor and the fan, instead of to heat the water directly with an electric element.

As an example, a standard electric hot water system will use 3.6 kW of electrical input to deliver 3.6 kW of thermal output. A heat pump will use 1 kW of electrical input to deliver 5 kW of thermal output.

Typically hot water heat pumps use only 20% of the energy required by an electric storage hot water system, saving up to 80% compared to conventional electric hot water energy costs.

The noise level depends on the model of heat pump installed. Typically a heat pump hot water system will as loud as a fridge or an air conditioner’s outdoor unit.

Your installer will be able to provide more information about the specific models you are quoted.

A hot water heat pump will heat your water to the required storage temperature of 60°C as quickly as a traditional gas system while using much less energy doing so. Gas hot water systems can heat water far above these temperatures, however, this is not recommended for energy efficiency and safety reasons.

There are many factors that go into the pricing of the installation of a hot water heat pump.

Pricing will depend on the brand, size, type of tank (glass-lined or stainless steel), whether there is an added heated element and installation processes. There may also be additional costs associated with your property, including additional plumbing or wiring work, switchboard upgrades or needing to install a concrete base for the heat pump.

Our installers will work with you to create a proposal suitable for your individual circumstances, including any additional costs that may be associated.

Split Systems

The most basic way to look at reverse cycle air conditioners is to think of them as systems that absorb hot air.

To heat your home, they absorb heat from outdoor air and add it to your indoor air. To cool your home, this heat exchange process is reversed.

The entire system is efficient, adaptable, and flexible and is considered one of the most efficient heating and cooling methods on the market.

Split systems have many benefits that make them a preferred option today. They are more energy efficient, safer and end up costing much less in the long run, particularly if your gas system is ducted.

An energy-efficient, star-rated air conditioner can provide considerable savings compared to gas heating and keep your home warm throughout the winter.

Generally speaking you should count on 0.15 kW per square metre. However factors such as ceiling heights, window sizes and orientations, and insulation levels will affect sizing.

When you speak to our installers they will assess your property to find the most suitable size for each area you want to heat and cool.

Adjusting the temperature settings to the most energy efficient settings can help to reduce energy consumption. In Summer, aim for temperatures around 25°C degrees or higher for cooling, and in winter 20°C or lower for heating.

Ensuring your home is well insulated and that any gaps around doors or windows are sealed will go a long way in minimising heat transfer. Closing curtains and blinds can also help keep temperatures steady and prevent further leakage.

EV Chargers

Depending on the type of vehicle, charger, and level or charge, it can take anywhere from 30 minutes to several hours to fully charge an electric vehicle.

Electric vehicle charges are categorised by levels indicating the amount of power delivered to an EV from the charger.

Level 1 is the same as plugging into a regular power outlet. Charging at between 1.4kW to 3.7kW it can take 5-16 hours to charge.

Level 2 is your dedicated EV charger. Charging at between 7kW to 22kW it can take between 2-5 hours to charge. These can also be found at public charging stations.

Level 3 chargers are DC fast charging stations found at major public charging stations. Charging at between 25kW to 350kW it can take between 10-60 minutes to charge.

Find out more from the Victorian Government at energy.vic.gov.au

While it is possible to charge an electric vehicle using a regular power outlet, it is not recommended for regular use as it is slow and inefficient – it can take a long time to fully charge your car!

Installing an EV charger means you can charge your vehicle at home in less time, and more safely.

The price of installing an EV charger through the Solar Savers program is between $2,000 – $3,500 for standard installation. However, the price may vary depending on the type of charger, size of the charger, distance from your switchboard, any additional upgrades needed and the supplier used.

Depending on the capacity of the charger and your home’s electrical setup, it may be possible to charge multiple electric vehicles with a single EV charger installation. However, it is recommended to consult with the electrician to ensure that the charger can support multiple vehicles safely and efficiently.

This will vary depending on how often you use your electric vehicle and therefore how much you will need to charge it. The Electric Vehicle Council provides some approximate calculations on the cost of charging an electric vehicle at home, and in general your electricity bill may increase by 50%.

However, this is typically cheaper than the cost of petrol for the same distance covered. Additionally, if you pair your EV charger with a solar PV system, you can use the energy generated from the system to charge your car.

This will depend on your home and electricity usage. If you run many energy-intensive appliances at the same time you are likely to be charging your car, you might want to consider upgrading to three-phase power.

When receiving a quote, your installer will be able to make recommendations based on your home and current electricity usage and set up

Induction Cooktops

You may need a special electrical setup to install an induction cooktop. Induction cooktops typically need to be hardwired to the household electricity supply to operate. A dedicated circuit with higher power capacity is often needed. Our installers will assist with assessing your home’s needs and the electrical set up required for installing an induction cooktop.

Yes, Solar Savers can arrange installation for a cooktop. Please register for the program and our installers will contact you to organise a quote.

Induction cooktops require cookware that is compatible with induction technology. You can test if your existing cookware is compatible by placing a magnet on the bottom of the cookware – if it sticks, it is likely compatible. If your cookware is not compatible, you will need to purchase new induction-compatible cookware.

An induction cooktop works by using electromagnetic induction to heat the cookware directly, rather than using a heating element like traditional electric or gas cooktops.

Induction cooktops are highly energy-efficient because they heat the cookware directly using electromagnetic induction. This means less heat is wasted, resulting in faster cooking times and lower energy consumption. 

Induction cooktops heat up quickly and provide instant and precise temperature control, allowing for faster cooking and responsive heat levels. They are also considered to be safer than traditional cooktops because the cooktop surface itself does not get hot, minimising the risk of burns.

Maintaining your induction cooktop is relatively straight-forward. We recommend:

  • Avoid dropping heavy items on the cooktop as it may crack the surface
  • Avoid chopping food on the cooktop surface as it may crack the surface
  • Clean up spills and stains as soon as possible using a detergent and soft cloth – avoid using abrasive cleaning products as this may scratch the surface
  • Avoid dragging pots and pans across cooking zones as this can cause scratches on the surface

Insulation & Draught Proofing

Insulation helps regulate indoor temperatures, reduce energy consumption, and lower heating and cooling costs. Proper insulation can keep homes warm in winter and cool in summer, providing comfort year-round.

Signs that your home may need more insulation include fluctuating indoor temperatures, high energy bills, draughts, and uneven heating or cooling.

A professional energy assessment can help determine if additional insulation is needed.

The R value of insulation measures its performance, how well it resists heat flow. The higher the R value the higher the level of insulation.

The type and R value of insulation that is best suited to your home will depend on your climate and construction type.

The National Construction Code (NCC) set out minimum requirements for the R values of materials used in the construction of buildings. It is generally advisable to exceed these for greater comfort and energy savings.

Draught proofing involves sealing gaps and cracks around windows, doors, and other openings to prevent air from entering and escaping.

In Victoria, where temperatures can vary, draught proofing helps maintain a comfortable indoor environment year-round and reduce energy waste.

A professional energy assessment can help determine if draught proofing is needed.

Home Energy Assessments

The duration of a Home Energy Assessment will vary depending on the size and complexity of your home. On average, an assessment typically takes a few hours to complete, which includes an inspection of your property and generating your report.

Improving your home’s energy rating can lead to reduced energy bills, increased comfort, and a smaller environmental footprint. Additionally, energy efficient upgrades that are identified through the assessment can help you save money over time and increase the value of your property.

Absolutely. The assessment provides a comprehensive analysis of your home’s energy performance and tailored recommendations for improvements, but you can make upgrades without having this assessment done.