What is an Off Grid Solar System?

What is an Off Grid Solar System? (Full Guide)

You might have heard the term “off grid solar system,” but you’re not quite sure what it is and if you need it. This guide will answer all your questions about off-grid solar kits and systems and see if it’s the best option for you.

An off-grid solar system offers sustainability and energy independence as an alternative to conventional energy sources. This method offers a chance to live sustainably even in places without access to traditional power grids by harnessing the sun’s energy.

Key Takeaways

  • Off-grid solar systems are solar panel systems that work on its own and can be stand-alone from main power grids.
  • In essence, an off-grid solar system won’t experience power outages when main grids do. Moreover, it runs even when you’re in remote places that can’t connect to the main grid.
  • Off-grid systems tend to be more expensive, ranging from around $25,000 to $70,000.

What is an Off Grid Solar System?

An off-grid solar system makes power with sun panels but works on its own, making them stand-alone solar systems. They work away from the main power lines.

These kinds of systems usually have solar panels, a device to control charging, solar battery systems to hold the power, an inverter to change DC (direct current) power from the panels to AC (alternating current) power for home use, and sometimes a backup generator for times with less sunlight. It’s often picked for far places where connecting to the main lines is hard or costs too much.

Pros and Cons of an Off Grid Solar System

Pros and Cons of an Off Grid Solar System

Are off-grid solar systems worth the investment? First, you’ll need to know the pros and cons of these kinds of grid power systems. Take a look below:


  • It makes you energy independently. This means that would not be tied up with the city’s powerhouse. So if the power is cut in the city you won’t have any problem with power outages.
  • An easy alternative for rural areas. Blackouts are frequent in rural places. And for those who live there, electricity-related issues are typically your top worry. In these cases, off-grid solar power systems are the most advantageous option. Your house would become independent or less dependent on unstable power supplies provided by the local grid with the help of this option.
  • Environment friendly because it produces clean, and renewable energy that doesn’t emit harmful gammas and doesn’t contribute to air pollution.
  • It can help you save money.
  • Easy to expand. If you want more energy later, you can add more sun panels or power units easily.
  • Versatility. You can just install them almost anywhere you want, even in remote places.


  • They cost more.
  • For electricity to be delivered accurately day and night, batteries are absolutely needed.
  • It could be essential to change a lifestyle to lessen energy consumption.
  • Production of oversupply energy can go to waste.
  • The grid is unreliable at night time and on overcast days.
  • The batteries deteriorate quickly, need maintenance and have a limited lifespan.

Off-grid vs. Grid-tied Solar System

Off-grid solar setups work alone, not needing the main power grid. They use only the sun’s power and keep energy in batteries, perfect for far places or where grid power isn’t steady. But, they cost more at first because they need batteries and extra parts to store energy and for backup power.

On the other side, grid-tied solar setups link to the main power grid, letting electricity be shared. They usually cost less to start since they don’t need batteries. While grid-tied systems are more reliable and can cut down on electric bills through net metering, off-grid systems make you fully independent for energy. Yet, they demand good use and care of batteries to work best.

The Cost of an Off-Grid Solar System

Is off-grid solar system really that expensive? The cost of an off-grid solar system from a typical Australian home usually ranges from $25,000 – 70,000. The prices depend on the amount of battery storage to power your humble home.

A small cabin will likely cost around $25,000 – $30,000. A larger system for a full-time home might be a bit more— around $40,000 – $70,000. But there are many other factors to consider when calculating the cost of an off-grid system, such as:

  • The brand of system you use
  • Features you’ll need
  • Location
  • Installer
  • and others.

Key Components of an Off-Grid System

Key Components of an Off-Grid System

The following are the key components of an off-grid system:

Solar Panels – A solar panel collects solar radiation and use it as a source of energy to heat or create electricity.

Solar Inverter – This is an apparatus that transforms solar-generated direct current (DC) electricity into alternating current (AC), which the electrical grid uses.

Battery – This stores energy from the solar panels for later usage, during the night or cloudy sky.

Frequently Asked Questions (FAQs)

How many solar panels do I need to run off-grid?

The average off-grid home will usually have 7 Kw or 2,000 watts to entirely rely on its own energy. If your energy needs were 7 Kw, you would need about 35 200-Watt solar panels to get your home off the grid. Alternatively, you can also have twenty 350-Watt solar panels.

How much does it cost to go off the grid in Australia?

If a house is located far from the power lines, the initial quote we received from the power supply provider to connect to the grid was very large. One company might quote between $45,000 and $55,000 to connect to the grid.

Can I install my own off-grid solar system?

Building an off-grid solar system is possible, but it requires planning and electrical knowledge. First, assess your energy usage. Then, choose solar panels, batteries, controllers, and inverters that match your needs. Install them carefully, following safety guidelines and local regulations. Consider expert advice or training to ensure proper setup and prevent potential hazards.

Final Thoughts

Ultimately, off-grid solar systems are self-contained, unlike a standard grid, thus giving you renewable energy constantly even during power outages. These systems desolate locations or places where power is not always available. However, it takes careful planning, up-front maintenance, and investment to have an off-grid solar system.

It is also important to visit some of these elements like battery storage, energy solutions, and backup options during cloudy weather. Altogether, people may find them as a sustainable solution that gives power back to individuals who seek independence of any form in terms of energy supply.


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