To cope with your rising energy needs, solar systems are available in various capacities, right from 5kW to 100kW and even more. Since solar panels generate electricity only when it’s sunny outside, you need to keep your usage minimum, or else will get electricity bills to pay.

By planning your routines, such as laundry, dishwashing, and ironing in the day time, you can save a bit of energy to be used at the night. The energy produced in the day either gets utilised to the full or transfers straight up to the local grid.

Surely, there will be days when there will be a cloudy sky or a rainy day with no sun. In such incidences, the extra electricity you need will be imported from the grid and you’ll be charged for it.

Some easy tips that can make your home more energy efficient throughout the year include:

  • Use One Major Appliance At A Time

High voltage appliances consume the most energy to perform their operation. As your system produces limited energy with solar, try limiting your use of such appliances to once a day. In this way, you’ll be able to save enough energy to keep your other electrical appliances, such as fans and lights running for longer.

In case, you remain at home during the day rather than just evenings and mornings, you can make use of solar energy in a much better way.

  • Keep A Track Of The Inverter Display

A solar inverter displays how much electricity is being generated and plays the role of converting the electricity generated by the panels into an Alternating Current that your household appliances can use to operate.

By keeping a track of the energy utilised by your appliances and comparing it with the figure displayed on the inverter screen, you can find out how much energy you are left with and can use it accordingly.

So, these two steps if considered can help you in getting the most out of solar energy produced by your rooftop solar. Always be conscious about how much energy you are using to save dollars on electricity bills.

With residential and commercial solar installations gaining a good momentum, the demand for batteries has gone up significantly. This rise in popularity for battery storage is mainly due to the rebates offered by Solar Victoria and the ease of purchase across the country.

Also, there are many leading brands available to choose from, depending on your storage requirement and budget. The continuous decrease in solar battery prices with better efficiency outcomes is influencing the homeowners to make a purchase. 

Solar offers tremendous benefits, and so do the batteries. In the peak summer, when there is a shortage of grid electricity, battery storage plays the role of a saviour by storing the energy that can be utilised later in the shortage period. The solar industry in Australia is at its peak success, and now is the best time to invest in a battery system since the prices are set to rise in the near future.

It’s not only the solar industry that is booming, the electric vehicle industry is also rising each day. Along with solar batteries, the ones that use lithium technology are also favoured by all. To keep up with this upride, the battery prices are sure to skyrocket in the future.

To achieve its objective of net-zero emissions, the Australian Government is lending a helping hand by offering great battery incentives and rebates to reduce the financial burden on pocket.

As Australia has pleasant weather throughout the year with the sun shining bright every day, solar energy is the best thing to utilise and save dollars on electricity bills here.

Also, the batteries have never been so better as they are now and are continually improving their capacity and efficiency each passing day. If you want to prevent blackouts even during the rainy days or no sunny weather, batteries are the best bet to invest in. They are the most feasible option nowadays with long-term efficiency.

If you are planning to install solar batteries for your rooftop solar installation in Victoria, feel free to contact our solar installers at Online Air and Solar.

With residential solar panels becoming more popular every passing day, Australia is making record solar installations for households all over the world. For houses that need less power output, 5 kilowatt (5kW) solar systems are the best choice. They are highly preferred for good energy yields and a great return on investment.

  • Panels & Roof Space for A 5kW Solar System

When it comes to panels, a modern day 5kW solar system comprises of about 15-20 panels. These panels will need around 25-35 m2 of roof space. The space needed also depends on the wattage of the panels you are planning to install.

  • Costs Involved in Installing a 5kW Solar System

Because of the rising demand of solar in Australia, it is home to low cost solar PV systems in the world. The average cost of installing a 5kW solar panel system goes approximately to $1.03 per watt to $1.40 per watt.

  • Power Generation Output for a 5kW Solar System

The amount of power generated by a 5kW solar system depends on a number of factors, including:

  • Geographical location of the system
  • Orientation and tilt angle of the panel
  • Degree of shade cast on the panels
  • Operating temperature of the panels
  • Performance of all the components

Return on Investment for a 5kW Solar System

Investing in a 5kW solar panel system is one of the best choice a homeowner can make when it comes to going solar and producing their own energy. The financial returns from this installation is a bit harder to work out and depends on solar feed-in tariff available. This tariff includes the amount paid to the owner for each unit of solar power exported to the grid.

So, these are some important aspects of a 5kW solar power system project you need to keep in mind before investing dollars in installation. If you are planning to go solar, get in touch with our CEC accredited solar installers who can guide you about which capacity of system will meet your needs in the best possible way.

Solar power is given a clean and green energy status in Australia as it provides an array of environmental and public health benefits by reducing the impact of greenhouse gas emissions. If you are wondering how solar energy could benefit your as well as community health, here are some quick tips that will help you know:

  • Reduces Carbon Dioxide Emissions 

The climate change we are witnessing for the past many years is the result of atmospheric carbon dioxide that stays in the atmosphere for decades and radiate heat towards the earth, thereby giving a constant rise in temperature. Being responsible citizens, we can help diminish these threats by switching to solar energy.

  • Reduces Methane Emissions

Compared to carbon dioxide, methane lasts longer in the atmosphere and traps more heat and radiation. Its impact on the health and environment is 25 times greater than carbon dioxide. Both natural gas and petroleum exhibits methane into the atmosphere. By investing in solar energy, the levels of methane in the environment can be reduced.

  • Reduces Ground Pollution

When it comes to ground pollution, non-renewable energy sources are the main culprit. They damage the ground in several ways, including oil spills, harming ecosystem and polluting the layers of earth. Solar panels do not significantly contribute to ground pollution and are a safe bet for health and environment.

  • Reduces Air Pollution

With the rise in solar panel installations and renewable energy sources, the dependency on coal will decrease to a significant level. This in turn, will allow the reduction in air pollution by controlling the harmful gases and emissions into the atmosphere. 

  • Reduces Water Usage

Though hydropower is a type of electricity generated using water, it drastically decreases the amount of water on the planet day by day. Being reliant on rivers and water bodies, hydropower can disturb the ecosystem and limit access to water. Going solar can reduce the water dependency to a great extent.

So, these are some ways solar panels can help benefit the environment and health of the community. At Online Air & Solar, we specialise in installing solar panels and battery storage systems that can help you make the most out of renewable energy sources.

The demand for solar energy has soared over the years, topping the 100 gigawatts energy count. Solar energy accounts to more than 20% of total energy generation in Victoria. Harnessed through solar panels, there are a lot of factors that determine the solar output at your property. To make sure which panels will work the best to meet your needs, you should know everything about the efficiency and costs.

What Actually Is Solar Panel Output?

The amount of energy generated by solar panels is known as solar panel output. The ratings are generally based on the energy wattage they produce.

Energy consumption is measured in kilowatt hours (kWh). Translating the solar panel power output from watts to kWh tells us what capacity of energy they can produce.

Factors To Consider Based On Solar Panel Output

  • Your Energy Usage

Almost every homeowner can give a brief idea of how much energy they consume per month by reviewing their electricity bills. By determining the approximate kWh that your residence uses annually, you can figure out which capacity of solar panels will work the right for you.

  • Your Environmental Footprint

Based on your residential usage, you can easily determine if you should reduce your footprint or just go off the grid. By calculating the upfront costs, you can choose rooftop solar panels or off the grid ones. The latter are comparatively costly.

  • Your Energy Efficiency

To reduce your energy dependency, you can consider investing in energy efficient appliances. This will decrease your energy usage and lower the number of solar panels needed, thereby minimizing the costs.

Is There Any Reduction In Solar Panel Output Over Time?

In most cases, solar panel output decreases over time with an annual drop of 0.5 percent. There are many reasons that contribute to this, including degradation, extreme weather conditions and soaring temperatures. Rooftop solar panels go through harsher conditions compared to the ground ones.

Though typical solar panels offer warranties that last for around 20-30 years, it’s better to maintain them every year to prevent efficiency reduction.

Now that you know what solar panel output is and the factors associated with it, it’s the best time to make up your mind about going solar. Online Air and Solar is a trusted solar panel installation company in Melbourne proudly assisting households and businesses in going solar.

With the ever increasing electricity costs and pledge to net zero emissions by 2050, more and more homeowners are turning towards renewable sources of energy. Though entire Australia is opting for solar energy, Victorians are taking a major initiative in this solar revolution. Thousands of Victorians have replaced traditional electricity sources with solar energy, so much that, if the solar panels installed in Victoria are laid end-to-end, they’ll stretch all the way from Melbourne to Jakarta.

 Lily D’Ambrosio, the Minister for Solar Homes, Victoria, announced the latest figures of rooftop solar panels installed under the Solar Homes Program to be more than 3.16 million. Also, more than 180,000 homes and small businesses that have already applied for solar rebates of $334 million are urged to join this figure.

 She said, “Victorians continue to embrace renewable energy – they know solar is good for jobs, it’s good for the environment and good for bringing down power bills.”

 Switch To Solar For Low Cost Bills

 Since summers are on the way, energy requirements are going to touch the sky. So, it’s better to get prepared to tackle the hot weather with low cost renewable energy sources that saves you with money and resources in the long run.

 Now is the right time for the Victorian residents to consider investing in solar powered systems and take advantage of the $1,400 rooftop solar panel rebate decided by the Solar Victoria along with a $3500 solar battery rebate or up to $1,000 solar hot water rebate.

 In the recent announcement, the Victorian Government announced a $1000 rebate for upgrading old heaters with energy-efficient reverse-cycle air conditioners. In addition, individuals switching to a zero-emission vehicle gets a $3000 subsidy.

 Leaders In Climate Action & Renewable Energy

 With a $1.6 billion amount allocated for Clean Energy Package, Victoria has managed to become a global leader in climate action and renewable energy development. In the financial year 2019-20, the state connected 1.6 gigawatts of solar panels that are more than any other state in Australia.

 Till date, there are 21+ renewable energy projects with a combined capacity of 2,619 MW in progress and are getting commissioned shortly.

 Help Achieve Net Zero Emissions Target- Go Solar

 Victoria is leaving no stone unturned to achieve its goal of reducing emissions to half by 2030 and net zero emissions by 2050. Residents are going to play a significant role in this feast. With a number of solar rebates offered by the government, it’s the best time to take advantage.

 If you want to install solar panels on your household or business premises, Online Air and Solar is here to assist you. Talk to our accredited solar panel installers to discuss your goals and get started with the rooftop assessment and consultation. We are trusted by hundreds of Victorian residents and businesses for quality solar system installations that meet compliance. Our team will be more than happy to assist you.

Victoria Confirms Continuation of Solar and Battery Rebates

Following on from the Victorian Budget announcements, it has been confirmed that the Solar Homes rebates and interest free loans will maintain their current level until 30 June 2021.

To further reduce installation costs, householders can apply for an interest-free loan for an amount equivalent to their rebate amount. The loan is required to be repaid over four years or can be repaid sooner in one lump sum.

The rebates amounts are as follows: 

  • Solar PV – Rebate of up to $1,850 + option of an interest-free loan up to approved rebate value. 
  • Solar for rental properties – Rebate of up to $1,850 + option of an interest-free loan up to approved rebate value. 
  • Solar battery rebate – Rebate of up to $4,174. Note: interest free loans are not available under the Solar battery rebate program. 
  • Solar Hot Water rebate – Rebate of $1,000. 

Applicants must understand their eligibility for a rebate application and can then contact us. 

Am I Eligible?

Victorian households are eligible to receive a rebate for installing a solar PV system if they meet the following criteria: 

  • they are the owner-occupier of the property  
  • the owners have a combined household taxable income of less than $180,000 per year (based on last year’s Australian Tax Office Notice of Assessment) 
  • it is an existing property, valued at under $3 million 
  • they do not have an existing solar PV system*.

Once you are confident that you meet the above requirements, please contact us on 1800 289 665 or

* Early adopters who installed their system prior to 1 November 2009 are eligible to replace or expand their existing system. However, those receiving the Premium Feed-in Tariff should consider whether they will be better off if they replace their existing system.  

Interest Free Loans

To further reduce costs, owner-occupiers can apply for an interest-free loan, for an amount equivalent to their rebate amount.  

An interest-free loan, matching the rebate amount, is also available for most solar panel (PV) applications.  

In line with the existing rebate, the new interest-free loan can be applied up to an amount of $1,850. If your total system cost is less than $3,700, there will be no upfront cost.  

The loan is required to be repaid over four years, or can be repaid sooner in one lump sum. 

Rebate Release Dates for the Remainder of 2020

Rebates for Solar PV, Battery and Rentals will be released fortnightly in line with the dates and times outlined at Solar Homes Program key dates. All rebate releases will occur at 12pm.

Solar Hot Water rebates are available on an ongoing basis and will not be subject to fixed released dates at this stage. 

A Guide to Buying Solar Panels in 2021

If you’re sick of rising electricity prices and feeling like a slave to energy companies, then you’ve probably given solar energy more than a passing thought. We understand that the decision to go solar can be a tough one, especially without the right kind of research. It can also be a confusing one. That’s why we’ve gathered the following information to help you make an informed decision on what’s right for you!

Coming from solar industry experts ourselves, there has never been a better time to go solarWith electricity prices rising in recent years and decreasing solar costs, over 2 million Australian households are now enjoying clean, reliable energy – straight from the sun.

So what are the benefits of going solar?

For most people, the advantages of solar energy are obvious. In a global sense, harnessing the power of the sun’s rays to power our home is certainly better for the environment than other coal-generated forms of electricity.

From a financial perspective however, solar energy needs to be thought of as an investment. There’s certainly an upfront cost involved but the long-term benefits are clear. By using solar energy to power your home for all the sunlit hours of the day, you’re not drawing energy from the main grid and therefore, saving on your electricity bill.

On the other hand, if your home is producing excess energy, it gets sent back to the main grid and you receive a feed-in tariff from your energy company. The feed-in tariff pays you for excess electricity generated by your solar system which is not used in your home. This way you don’t have to worry about any excess energy your system produces because you will get back for it. 

To sum up, You may not be completely wiping out your energy bill in the first few months, but you’ll certainly be reducing it considerably allowing the system to pay for itself over time. 

How does on grid solar work?

On-grid solar means powering your home with solar energy for the hours in the day when the sun is shining. Without battery technology, an on-grid solar installation can only power your home while it is actually producing energy from the sun. Think of it like riding a bicycle on a flat stretch of road: while your legs are pedaling to produce energy, you keep on moving. If you stop producing that energy, you come to a stop.

Fortunately, unlike a bicycle with no backup system, your home is still connected to the main energy grid. So, at night time, or other times when your solar system isn’t producing energy, you can still power everything in your home. This is the energy consumption you’re still charged for by your energy provider. However, this sort of solar set up also comes with a feed-in tariff, which means your energy provider will actually pay you for the excess energy you produce and don’t use. This helps to off-set the cost of power you use when your solar system isn’t producing energy.

Let’s understand parts of a solar installation!

The most important component of any residential solar panel system is the array of panels up on your roof. During the daytime, your panels absorb the sunlight and convert it into clean electricity. Most people assume that it’s as simple as that, but don’t go forgetting the important role your inverter plays.

You see, to be used in the home, sunlight needs to be converted into the right type of electricity. An inverter takes direct current (aka DC) from the solar panels and turns it into alternating current (aka AC). This allows your solar energy to be used by the appliances in your home. The inverter usually sits on the exterior wall of your house or inside the garage.

Solar systems can be on-grid or off-grid. On-grid systems are connected to the electricity network. Off-grid means that your home produces and consumes electricity separate from the national network. If your solar energy system is connected to the grid, you can export your excess electricity to the grid and get rewarded for the contribution.

On the other hand, if your home is using more power than your panels can produce, you will draw power from the grid. That is why a smart meter is a necessary and important component. It measures how much electricity is exported and imported, so your energy retailer can provide an accurate quarterly bill.

You can also generate power during the day and save it for later or use it at night time. For this, you’ll need a battery. Recently, home batteries have become increasingly popular. With the advent of the Powerwall, energy storage has opened homeowners up to a world of possibilities when it comes to saving power. Visit our solar battery page to get a free consultation on Visit our Tesla Powerwall page to buy the most advanced solar battery storage Tesla Solar and Powerwall Cost – Tesla Home Battery Installation (


Solar panels come in two forms – monocrystalline and polycrystalline. Both are perfectly fine for Australian conditions. The solar panels are installed, generally on your roof, and are used to capture the solar energy you’re going to use in your home. 

Several factors influence the efficiency of your solar panels such as positioning, shadowing, dirt and dust. But what if it’s going to rain? Do solar panels work on a cloudy day? The answer is yes. However, with a large number of types and efficiencies of panels, it can be hard to decide what is best for your house. If you require any help with making this decision, do not hesitate to give us a call on 1800 289 665.


Most people’s interest stops at the quality of their solar panels, but a high-quality solar system requires more than a high output array.

The power that comes from your solar panel is known as a DC or direct current.

To make solar work for your home, you need an inverter that transforms direct current into a 240V alternating current (AC), which is usable in the home. Without the inverter, your solar system wouldn’t be able to power your home. Our in house solar experts will help you decide which inverter is best for you. 


If you choose to direct your excess energy back to the grid, you’ll need a meter.

Net metering, NEM, or Net Energy Metering is a process of buying and selling solar power between you and your electricity provider.

Using this system, if your solar panels produce more energy than you need, you can choose to feed the excess into the grid and receive a credit on your account.

And if you consume more power than your solar is capable of producing, you can use the electricity from the grid.


To save your solar energy for later use, you will need to store it in a home battery. As little as five years ago, home batteries seemed like an unrealistic option for most homeowners. But today, thanks to reduced costs, better technology, and greater demand, batteries are more affordable than ever.

Basically, the battery makes the solar panel work for you 24/7, even at night, when the sun is no longer out. It will also provide energy during blackouts!

Online Air and Solar sells solar panels and battery storage systems for your home. We are also a certified Tesla installer. To buy the best and most efficient solar battery to save your energy for later use, please contact us on 1800 289 665 or email us at

How Do Rebates Work?

To find out more about how rebates work and how you can take advantage of government incentives, please visit our blog Solar Victoria Rebate Scheme – Solar Homes Program | Online Air & Solar ( to find an in-depth explanation of how rebates work.

How to Choose an Installer for your Solar?

Once you’ve decided it’s time to go solar, it’s time for choose the right installer.

Solar is an investment so it’s important to get your money’s worth. But not all solar companies are worth your attention. According to the ASIC liquidated companies register, over 520 businesses which include the word ‘solar’ in their company name have gone into liquidation—that is, they’ve gone under—since 2011.

  1. Are you dealing with a sales company or solar company? After the government announced that there would be solar rebates, the industry was flooded with solar companies looking to make a quick buck. So ask yourself: Are you dealing with a company that is only focused on taking your money and leaving the rest to outsourced installers? Make sure that your chosen installer is a solar company like Online Air and Solar before anything else. Buying from Online Air and Solar, means working with people who understand how solar works, but more importantly, who understand your needs as the homeowner. 
  2. Who is going to install your system? Using subcontracted labour instead of having their own crew is dangerous and therefore, the result can be dangerous and the quality impossible to guarantee. At Online Air and Solar, all our in-house installers are thoroughly trained, have years of experience and are accredited by Clean Energy Council. All our technicians are licensed plumbers and A Grade electricians.
  3. How long is your warranty? Poorly designed solar systems may fail, while dangerously installed components may lead to the fires or structural damage to your house. A company such as Online Air and Solar that is confident on our own abilities and skills provides you with a 10 year workmanship warranty as well as guaranteed quality and services.
  4. Is your company 100% Australian owned and operated? With many solar companies outsourcing their operations to international firms, it is becoming harder for Australian families to find a company that understands their needs and requirements. Online Air and Solar is a 100% Australian owned and operated company. This means that all our staff members are located in Melbourne so we understand your solar needs and what’s best for your family. 

Find a reliable and reputable solar installer. Online Air and Solar is one of the best solar energy companies in Melbourne, We understand that the safety of your house and family come first. Choose a knowledgeable and experienced team such as our Clean Energy Accredited in-house installers and licensed plumbers and electricians. If you want to request a call back with a price beat guarantee and free consultation, please fill out this form How can we help? (

To help you make the best decision for yourself and your family, here are six reasons more and more people have decided to go solar and why it would be wise for you to say yes, too.

In this article, we will examine the Victorian Solar Rebate Scheme (updated on 29 June 2020). All information in this article is from the official Solar Victoria page.

Online Air & Solar
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anne Muscat
anne Muscat
00:26 30 Nov 21
The staff were very efficient, courteous and knowledgeable. They explained everything thoroughly when they had finished. They cleaned up everything before they left and I am very happy to highly recommend them.
Wayne Cummins
Wayne Cummins
09:29 26 Nov 21
Just had a Split System Air Conditioner put it using Online Air & Solar after having Solar Panels installed last year. Always a pleasure to deal with. Always helpful and reliable, do a great job and clean up after. Will continue to support them. Thanks for Always doing a great job.
Andy B
Andy B
22:20 18 Nov 21
Had split system installed. Good experience from start to finish. Installers very tidy and efficient. Definitely would use them again.
Bruce Gray
Bruce Gray
02:44 17 Nov 21
Well done Brendan and crew, got the job completed despite the weather. Looks good and awaiting inspection and switch on.
yaser khazan
yaser khazan
00:29 22 Oct 21
The staff is so amazing and friendly! I can trust what they say, special thanks to MOZHDEH (operation manager) she was with me all the timeanswering any questions and never makes you feel rushed ,Highly recommended
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