Powering Up Your Ride: How Many Solar Panels Do You Need to Charge an Electric Car?

charging ev from solar panels

Australians increasingly embrace electric vehicles (EVs) as a sustainable and cost-effective transportation. But with great EVs come great responsibility… the responsibility of keeping them juiced up! And what better way to do that than with the abundant sunshine Down Under? This is where solar panels come in, offering a clean and potentially free way to fuel your EV adventures.

But before you start picturing your roof covered in a solar panel army, let’s delve into the nitty-gritty: how many solar panels do you need to charge your electric car in Australia?

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ev charger solar
An electric car is parked in a garage in connection with a house. The car gets its batteries charged. On the roof of the garage is a solar power station.

Factors to consider: A sun-powered puzzle

Unfortunately, there’s no one-size-fits-all answer. The number of solar panels you’ll need depends on several factors, including:

  • Your car’s energy consumption: EVs have varying battery capacities and energy efficiency. A city car like a Hyundai Kona Electric will need fewer panels than a lower-efficiency SUV like a Tesla Model X.
  • Your driving habits: How much do you drive each day? If you’re a daily commuter, you’ll need more panels than someone who only drives on weekends.
  • Sunshine hours in your location: Australia’s diverse landscape means sunshine hours vary considerably across the country. Places like Darwin bask in over 7 hours of sunlight daily, while Melbourne averages around 5 hours.
  • Your solar panel system’s efficiency: Panels come in various wattages, with higher wattages generating more power per panel.

Solar power to EV charger: Let’s do the maths!

To give you a rough idea, let’s assume you drive an average Australian distance of 15,000 km per year in a moderately efficient EV with a 50 kWh battery. You live in a sunny city like Brisbane with about 5 hours of daily sunlight.

Here’s a breakdown:

  • Daily energy consumption: Assuming an average consumption of 15 kWh/100km, you’ll use 22.5 kWh daily (150 km/day x 15 kWh/100km).
  • Solar panel output: A typical 6.6 kW solar panel system in Brisbane generates around 4 kWh per day per kW capacity. You’ll need a system size of roughly 6 kW (22.5 kWh / 4 kWh/kW) to meet your daily needs.
  • Number of panels: Depending on the panel wattage (say 370 W), you’d need around 16 panels (6 kW / 0.37 kW/panel).

Read more about solar panels

But wait, there’s more!

Remember, this is just a rough estimate. Your actual needs may vary. Here are some additional factors to consider:

  • Charging efficiency: Not all the energy from your solar panels will be transferred to your car’s battery. Expect a loss of around 10-15% during charging.
  • Solar EV charger: A dedicated solar EV charger can maximise efficiency and minimise energy loss.
  • Battery storage: Consider adding a home battery system to store excess solar energy for charging your car at night or on cloudy days.

Unleash the potential of solar battery storage! Are you ready to transform the way you power your business or household? Say goodbye to rising electricity costs and unpredictable energy grids. The state-of-the-art solar battery systems empower you to maximise energy efficiency, save money, and reduce your carbon footprint while enjoying an uninterrupted power supply.

Let us discuss and choose the best quote that suits your needs and budget, and we can connect you with our trusted local installers, who will provide up to 3 FREE quotes for your business solar and home battery system.


The big picture: Beyond the numbers

While the number of panels is important, it’s just one piece of the puzzle. Switching to solar power for your EV charging is an investment in a more sustainable future. It can save you money on electricity bills in the long run, reduce your reliance on fossil fuels, and contribute to a cleaner environment for all Australians.

Read more about EV chargers


  • Consult with a professional to determine the specific needs of your situation.
  • Consider your car’s energy consumption, driving habits, and local sunshine hours.
  • Invest in a high-quality solar panel system and consider adding a home battery for maximum efficiency.
  • Embrace the sun-powered future and enjoy the satisfaction of driving an EV powered by clean, renewable energy!
ev charger solar
Happy family posing with a solar panel during their electric car charging.

Charging into the future

As solar technology continues to advance and EV adoption accelerates in Australia, the future of clean transportation looks bright. By harnessing the power of the sun, you can not only reduce your carbon footprint and enjoy significant cost savings on your EV fuel. So, ditch the petrol station and plug into the sun’s power – your EV and the planet will thank you for it!

Remember, this is just a starting point on your solar-powered EV journey. With careful planning, research, and the help of qualified professionals, you can create a system that seamlessly fuels your electric adventures and puts the pedal to the metal on a cleaner, greener future.

Are you ready to embrace a greener future by installing an electric vehicle (EV) charger?

Imagine the convenience of having your own charging station, allowing you to power up your EV whenever it’s convenient for you. You can contribute to a cleaner environment and combat climate change by installing an EV charger at your home or business. Energy Matters‘ trusted local installers are ready to provide you with a personalised quote tailored to your specific needs. 

Don’t wait any longer; request your quote today and be part of the EV charging revolution!

Get a quick solar quote, or contact us today toll free on 1800 EMATTERS or email our friendly team for expert, obligation-free advice!

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