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Compare off-grid solar costs in 2022

how much does going off the
Georgia Carter Updated: 01 July 2022
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More and more homeowners are looking to reduce their energy costs and dependence on traditional electricity. Did you know that you could eliminate your monthly energy bill by going off-grid with solar? Not only will you be helping the environment, but you’ll also be saving money in the long run. 

Installing a solar system can seem like a daunting task, but our team is here to help make it as easy as possible for you. We’ll walk you through every step of the process and answer any questions you may have. In this article, we outline the off-grid solar systems cost, and how many solar panels you’ll require.

Key facts

  • The average Australian on-grid household uses around 18kW of energy every day. This requires a 5kW solar system or bigger to support.
  • A medium-sized off-grid home would require a 6kW system to run without problems. This costs around $5,370 for the solar panels and installation.
  • A 10kW battery, which you may probably need to help store excess energy, costs around $9 680.
  • Always remember to review your home size, energy requirements, and budget before making your final decision. We recommend reviewing and comparing multiple companies and their offerings.
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What is an off-grid solar system?

Going off-grid means you have your home run solely on electricity or energy, usually created through solar power. Being “off the grid” separates your household from any public utilities. Off-grid solar systems allow you to enjoy a healthy lifestyle without relying on the electrical grid. A home’s primary source of energy is its roof.

The system works by harnessing the sun with installed panels which are often mounted one at either end—on top and near poles where there’s plenty room for them both. The panels extract energy from the earth using a technology called Photo-Voltaic cells. These are hooked up to batteries that store excess sunlight for later use, so you never have an issue with being cut off during power outages.

How does off-grid solar work?

The off-grid solar systems work by generating electricity from the sun and using it to charge a battery. An inverter converts direct current power into alternate power. Any excess in the battery can be used for rainy days or nights. You will need to undergo regular maintenance and may need to replace certain parts of your solar power system over time to ensure maximum efficiency. 

What does it mean to go off the grid?

When you go off-grid, your home will be completely disconnected from the national energy grid and rely solely on solar panels or other renewable resources for power.

What is the best way to live off-grid? For some, this may mean living in a fully self-sufficient manner where they rely solely on their own solar panels and batteries for power. You can also go “micro” by generating just enough electricity via small renewable sources such as wind or hydropower so that your home runs almost entirely without a grid connection.

how it works

Off-grid solar systems cost by type

Off-grid solar systems can be a great investment for homes that require backup power. The price of your system will depend on the amount you use, where it’s located in relation to utility lines and what kind(s) if any backup system you have installed at home already.

There are small off-grid solar systems that can be used for caravans, cabins and units. They’re perfect in situations where you don’t need a lot of power because they only produce what’s needed on the go. Medium/Large off-grid solar systems are perfect for Australian households. They have enough energy to power your house and can even be cheaper than gas or diesel.

3kW of Solar With 8-10kWh Battery

On average, a 3kW system costs $4 700 using good quality components and 10 kWh of battery ($9 680). The cost of going off-grid with a 3KW or 10 KWh battery system can be as much as $15,000-$20 000 according to our latest index on batteries prices. The good news is you don’t need an expensive generator because these are starter kits designed for smaller homes.

solar panel battery 250x250 1

6kW of Solar With a 20kWh Battery

With a 6kW Solar PV and 20 kWh battery, you could cover 99% of your household’s energy needs with just one installation. For a 6kW solar system, you’re looking at about 14-16 panels requiring 50 meters of roof space, which costs around $5,370 according to our latest index. A 20 kWh battery could add even more cost for the off-grid set-up, with an estimated price of around $18,000. Add all components together, including land installation. The final total may end up being closer to $25,000.

10kW of Solar With a 30kWh Battery

Installing a 10kW solar system will typically cost between $10,000 and $15,000, while installing a 30kWh off-grid battery would cost be around $25,000. The total for both solutions comes to $50,000.

What to consider when making the move to off the grid Power

It is important to match the power requirements of your lifestyle with what you can afford. If it becomes too expensive or difficult, going off-grid might seem like an attractive option but will end up more trouble than it’s worth when running a business from home where every detail counts. It’s important to consider a few things before making your decision.

  •  Cost: Decide what type of solar system you need and review the costs. Remember that there is the initial cost as well as the costs for generating solar electricity over the next 10 or 15 years.
  •  Review your requirements: The Off-Grid system that’s perfect for you might not be exactly what you think. Get an energy assessment done and determine what kind of off-grid installation would work best with your budget, expectations, or other factors.
  • Compare companies: When looking for a solar system, it is important to find one with a good balance between value and quality. The cheapest systems on the market may have limitations if their inverters fail or stop working altogether, which could leave you without power at home in an emergency.

How many solar panels to run a house off-grid?

While it depends on what size system you need to meet your energy requirements, there is a general rule of thumb. A 5kW system requires up to 20 panels, whereas a 7kW solar power system consists of 26 x 270 Watts modules. The panels will never run at 100% efficiency, and there are many factors, including your location, climate, shade type, orientation or season, which can affect their performance.

Frequently asked questions and answers

  • Is it cheaper to go off-grid?

    The price of going off-grid depends on the size of your solar power system. To provide power for your home during winter and days with minimal solar production, you will need at least one battery system. The cost ranges from $25,000 – $45,000 depending on how much storage capacity is needed in order to meet the daily energy needs of an Australian household, which is around 18 kWh/day. Remember to include installation fees and maintenance fees over time. However, government rebates and incentives can cut some of the heft cost of going off-grid.
  • How much does it cost to go off-grid with solar?

    If you’re looking for a great investment, off-grid solar systems are an incredible way to save money on your electric bill. The price of these installations will depend largely on how much power is used and where it’s located concerning utility lines and any installed backup systems. On average, a 3kW system with a battery costs around $15,000-$20 000, whereas a 10kW solar power system with a battery costs a total of around $50,000.
  • How much does it cost to go off-grid with solar?

    If you’re looking for a great investment, off-grid solar systems are an incredible way to save money on your electric bill. The price of these installations will depend largely on how much power is used and where it’s located concerning utility lines and any installed backup systems. On average, a 3kW system with a battery costs around $15,000-$20 000, whereas a 10kW solar power system with a battery costs a total of around $50,000.
  • Can I install my own off-grid solar?

    If you have the skills, time and money to invest in your solar power system, it is worth considering. Not only will this save on installation costs but also give full control of what equipment goes where which means no more worries about speaking with someone who doesn’t know anything when there’s nothing they can do wrong. A DIY-solar project takes some effort upfront; however, those involved will be able to manage everything completely themselves saving thousands compared against hiring an electrician or other professional service provider.”
  • How many kw Do I need to go off-grid?

    The estimated daily use for an off-the-grid lifestyle is about 7KWh, while an average on-grid household uses about 18kWh. For an off-grid home, you’ll need at least 21 x 700W panels or 5 – 6 kilowatts (kW) in total, depending on how much power your home uses per day. This doesn’t mean that all of it has to come from solar energy, though. You can generate more than enough with just one or two large installations if needed, but keep in mind they may only produce electricity during certain hours, so plan accordingly.
  • How much does a 10kw battery cost?

    A 10kW battery costs around $9 680 once-off. But this price depends on both the manufacturer and the type of battery you choose to deploy. Batteries are especially important when it comes to living off-grid because you’ll need to store all the excess energy you can for those rainy days and for night time. Consider whether you require a large or medium-sized battery, and remember to investigate any government rebate programs concerning solar battery systems to lower costs.

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