How many solar panels do I need to charge a car?



Charging Electric Vehicles with Solar Power

If it weren’t for solar energy, the electric car revolution would not have been possible. We now know that the sun can generate enough clean, renewable energy to power cars, homes, and many more of our day-to-day activities. But how many solar panels do you need to charge an electric vehicle?

How Many Solar Panels Can You Use to Charge an Electric Vehicle?

On average, 8-12 panels can be used to power an electric vehicle. This is based on an average monthly solar production output of 400 kWh. However, the exact number of panels required can vary based on factors such as the size and power of the electric vehicle, the climate and the amount of sunlight exposure in the area, and the angle in which the panels are mounted.

When calculating the number of solar panels you need to power your electric car, consider how much physical space you have available on your property to install the panels. Most rooftop solar systems require at least 2.5 square metres of space to install 8-12 panels. It is important to factor this into your calculation because the more physical space you have, the more panels you can fit for the optimum performance.

Installing Solar Panels and Charging Your Vehicle

Once you have chosen the number of panels that meets your needs and that can fit your property, you will need to choose a qualified installer and do an assessment of the proposed installation site. A qualified installer will be able to complete all the necessary paperwork, ensure the panels are installed securely, and certify the system.

When installing solar panels for charging an electric vehicle, factors such as the roofing structure and type of roofing material should be taken into account. In addition, the system should include an overall safety switch, special connectors to connect the solar panel system to the electric car charging unit, and approved wiring.

Alternatives to Installing Solar Panels

If you do not have the physical space or resources to install solar panels, other options are available. One option is to wait for off-peak hours when electricity demand is low, and take advantage of lower electricity prices. This is an ideal solution if you want to save money while still charging your electric car sustainably.

Another option is to opt for renewable energy sources such as wind and solar farms. These can provide a reliable, steady stream of energy for your electric vehicle for a fraction of the cost of installing solar panels. In some regions, renewable energy is even available at the same cost as electricity from the grid, making it a great alternative for electric vehicle owners.


As the electric vehicle revolution continues, more and more people are looking for ways to charge their cars with reliable, sustainable energy. Solar panels are a great option for this and, on average, 8-12 panels can be used to power an electric vehicle. When installing solar panels, it is important to use a qualified installer, factor in the size of the property, and consider factors such as the type of roof, safety switches and wiring when planning the installation. Alternatives to installing solar panels include taking advantage of off-peak hours and opting for renewable energy sources such as wind and solar farms.

Charging electric vehicles with solar power is becoming increasingly popular and allows electric vehicle owners to power their cars without having to rely on the grid. It is a cost-effective, sustainable option that is beneficial to both the environment and your wallet.


For more information on charging electric vehicles with solar power, check out the following websites:

– SolarCalc:
– National Renewable Energy Laboratory:
– U.S. Department of Energy:
– SolarReviews:

You can also contact local companies that provide solar panel installations and ask for advice.

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