Can I Charge My Electric Car Using Solar Panels?
Yes, you can charge your electric car using solar panels at home, and for many homeowners in Horley, Reigate, Redhill, Crawley, Surrey and West Sussex, it can be one of the best ways to make better use of your own renewable electricity. By combining solar panel installation with a smart EV charger, you can use power generated from your roof to help charge your EV, reduce grid electricity use and lower your reliance on public charging.
If you are looking into solar panels, EV charger installation, solar battery storage or a full home energy system in Horley, Reigate, Redhill, Crawley, Surrey or West Sussex, this guide explains how solar EV charging works in plain English. It is written for UK homeowners, landlords and small businesses who want a practical answer before investing in solar panels and EV charging.
We will cover:
- Can you charge an electric car with solar panels?
- How solar EV charging works
- What equipment you need for solar panels and EV charging
- Whether you need a smart EV charger
- Whether solar panels can fully charge an EV
- How battery storage works with solar EV charging
- What happens if your car is not home during the day
- What size solar panel system you may need
- Solar panels, EV chargers and installation paperwork
- Common solar EV charging mistakes
- Whether solar EV charging is worth it
- JPEC Green Energy can help
Can you charge an electric car with solar panels?
Yes, you can charge an electric car with solar panels, but the amount of solar electricity that goes into your EV depends on how your system is designed. Solar panels generate electricity during daylight hours, so solar EV charging works best when your electric car is plugged in at home while your solar panels are producing power.
This means the best setup is not just “solar panels on the roof and an EV charger on the wall”. A good solar EV charging system should consider your roof, your mileage, your home electricity use, your charging routine, your EV battery size and whether you want solar battery storage.
For example, a homeowner in Crawley who works from home may be able to charge an EV with solar panels during the day. A commuter in Reigate or Redhill may use more solar power for the home during the day, then charge the car overnight from the grid or from battery storage if one is installed. A family in Horley may use solar panels for the home during the week and solar EV charging for weekend top-ups.
How does solar EV charging work?
Solar EV charging works by using electricity generated by your solar panels to help power your home EV charger. Your solar panels produce electricity, your home uses what it needs first, and any spare solar electricity can then be sent to your electric car, stored in a battery or exported back to the grid.
In a typical home solar panel system in Surrey or West Sussex, the electricity flows in this kind of order:
- Solar panels generate electricity during the day
- Your home uses solar electricity for lights, appliances and normal demand
- Spare solar electricity can be used by a smart EV charger
- Extra power can go into battery storage if installed
- Any remaining electricity may be exported to the grid
This is why solar panels and EV charger installation should ideally be designed together. If the EV charger, solar inverter and battery storage system are not chosen carefully, you may not get the best use from your solar energy.
For homes in Horley, Reigate, Redhill and Crawley, this design stage is important because every property is different. Roof direction, shading, parking position, cable routes and daily routines can all affect how well solar EV charging works.
Do you need a smart EV charger for solar panels?
A smart EV charger is usually the best choice if you want to charge your electric car using solar panels. A standard home EV charger can charge your car from your household electricity supply, but a solar-compatible EV charger can help prioritise spare solar electricity when it is available.
A smart EV charger can help you control when your electric car charges, how much power it uses and whether charging should be based on solar generation, grid electricity or off-peak tariffs.
This can be especially useful if you want to:
- Charge your EV with solar panels during the day
- Reduce how much electricity you import from the grid
- Use a cheaper overnight electricity tariff
- Combine solar panels, battery storage and EV charging
- Monitor EV charging through an app
- Avoid overloading your home electrical supply
If you are searching for EV charger installation in Surrey, EV charger installation in West Sussex, EV charger installers in Crawley, EV charger installers in Horley, or solar EV charging in Reigate or Redhill, it is worth asking whether the charger can work properly with solar panels and battery storage, not just whether it can charge the car.
Can solar panels fully charge an electric car?
Solar panels can fully charge an electric car in some situations, but not every day and not for every property. It depends on your solar panel system size, the weather, the time of year, your EV battery size, how much you drive and when the car is plugged in.
In summer, a well-designed solar PV system may produce a strong amount of electricity during the day. If your EV is plugged in at home, a good share of your charging could come from solar panels. In winter, solar generation is lower, daylight hours are shorter and you will normally need more electricity from the grid.
This applies whether you are installing solar panels in Horley, solar panels in Reigate, solar panels in Redhill, solar panels in Crawley or elsewhere across Surrey and West Sussex. The system still needs to be designed around your property, not just your postcode.
The important point is that solar panels do not have to fully charge your electric car every day to be worthwhile. Even if solar EV charging only covers part of your EV charging, it can still reduce your electricity costs and help you use more of your own renewable energy.
A good renewable energy installer should explain this clearly. If anyone tells you that solar panels will give you free EV charging all year round without looking at your property, usage and mileage, be careful.
Is solar battery storage worth adding for EV charging?
Solar battery storage can be worth adding if you want to store spare solar electricity and use it later. It can be especially useful if your electric car is not usually at home during the day when your solar panels are generating the most power.
A solar battery stores electricity from your solar panels so it can be used in the evening, overnight or at another time when your home needs it. However, a home battery is usually much smaller than an electric car battery, so it will not normally fully charge your EV by itself.
Battery storage may suit you if:
- Your solar panels generate spare electricity during the day
- Your EV is away from home during peak solar hours
- You use most of your electricity in the evening
- You want to use more of your own solar power
- You want solar panels, battery storage and EV charging to work as one system
- You are considering off-peak electricity tariffs
For a household in Redhill where the EV is away all day, battery storage may be useful. For a home office in Horley or Crawley where the car is parked at home more often, direct solar EV charging may be easier to use. For landlords in Reigate, battery storage and EV charger installation may depend on tenant usage, parking arrangements and property ownership.
Battery storage may be less suitable if your daytime electricity use is already high, if your solar panel system is small, or if the extra cost does not make sense for your usage. This is why battery sizing should be based on your real electricity use, not guesswork.
What if your EV is not home during the day?
If your EV is not home during the day, you may not use as much direct solar electricity for EV charging. This is one of the biggest things homeowners in Surrey and West Sussex need to understand before installing solar panels and an EV charger.
Solar panels generate electricity in daylight. If your car is parked at work during the day, your solar power will usually go to your home first, then to battery storage if you have it, or out to the grid if you are exporting.
That does not mean solar panels are not worth it. It just means the system needs to be designed around your routine. A household in Horley where someone works from home may use solar EV charging very differently from a household in Redhill where the car is away all day. A family in Crawley may only use direct solar EV charging at weekends, while a homeowner in Reigate may benefit more from solar panels and battery storage together.
For small businesses, the pattern can be even better. If company vehicles, staff cars or customer vehicles are parked on site during working hours, solar panels and EV chargers can work well together because the vehicles are there when the solar panels are generating electricity. This can make solar EV charging a good option for offices, workshops, clinics, salons and other small business premises across Crawley, Horley, Redhill, Reigate, Surrey and West Sussex.
Can you charge an EV overnight using solar panels?
You cannot charge an EV directly from solar panels at night because solar panels are not generating electricity. However, you may be able to support overnight EV charging with battery storage, or you may choose to use a cheaper off-peak electricity tariff.
For many homes in Surrey and West Sussex, the best setup is a combination of solar panels, a smart EV charger and a sensible electricity tariff. Battery storage can also help, but it needs to be sized properly.
A practical setup may include solar panels for daytime generation, a solar-compatible EV charger for controlled charging, battery storage for evening use and an off-peak tariff for overnight charging when needed.
This is where proper design matters. The right solar EV charging setup for a family home in Crawley may be different from a rental property in Reigate, a small business in Redhill or a home office in Horley.
What size solar panel system do you need for EV charging?
The right solar panel system size for EV charging depends on your roof space, electricity use, annual mileage and how often your car is at home during the day. There is no single solar panel system size that works for every electric car owner.
A professional solar survey should look at:
- Your annual mileage
- Your EV battery size
- Your normal charging routine
- Your household electricity use
- Your roof size, pitch and direction
- Shading from trees, chimneys or nearby buildings
- Whether you want battery storage
- Whether you already have an EV charger
- Your existing electrical supply and consumer unit
A home with a large, unshaded roof may be able to install a bigger solar panel system. A smaller home, shaded roof or awkward roof layout may need a more careful design.
For solar panels in Surrey and solar panels in West Sussex, every property is different. Older homes in Reigate, newer homes in Crawley, terraced properties in Redhill and family homes around Horley may all need different solar panel designs.
That is why JPEC Green Energy looks at the actual property, roof and usage before recommending a solar panel system, battery storage system or EV charger installation.
How much could solar panels reduce EV charging costs?
Solar panels can reduce EV charging costs by helping you use electricity generated from your own roof instead of buying all your electricity from the grid. The actual saving depends on system size, mileage, tariff, battery storage, charging routine and how much solar electricity you use yourself.
If your electric car is plugged in during the day, you may use more direct solar electricity for EV charging. If you mostly charge overnight, your savings may depend more on battery storage, off-peak tariffs or how much solar electricity your home uses during the day.
For a homeowner in Horley or Crawley who works from home, solar EV charging may reduce daytime grid import. For a commuter in Reigate or Redhill, the benefit may come more from solar panels supporting the home during the day and battery storage helping later on.
It is best to treat any savings figure as an estimate, not a promise. Solar panel savings, EV charging savings and battery storage savings all vary from property to property.
A good installer should provide realistic expectations based on your home, your EV and your usage, not just a generic example.
What does solar panel and EV charger installation involve?
Solar panel and EV charger installation usually starts with a survey. The installer checks your roof, electrical system, cable routes, charger location, consumer unit, incoming supply and how you plan to use the system.
For solar panel installation, the work may include scaffolding, roof mounting, solar panels, inverter installation, cabling, testing and commissioning. For EV charger installation, the work usually includes mounting the charger, running cable, fitting protection, connecting into the electrical system and setting up the charger.
For a combined solar panels and EV charger installation, the design should consider how everything works together. This includes the solar inverter, smart EV charger, battery storage, monitoring app, DNO requirements and future upgrades.
JPEC Green Energy can survey, design, install and commission solar panels, battery storage and EV chargers for homes, landlords and small businesses across Horley, Reigate, Redhill, Crawley, Surrey and West Sussex.
If you are comparing solar panel installers in Surrey, EV charger installers in West Sussex, solar panels in Crawley, solar panels in Horley, EV chargers in Reigate or battery storage in Redhill, the most important thing is choosing a qualified installer who understands the full system.
What paperwork is needed for solar panels, battery storage and EV chargers?
Solar panels, battery storage and EV chargers may need to be registered with the local Distribution Network Operator, often called the DNO. The DNO is the company responsible for the local electricity network, and they need to know when certain energy devices are connected.
Some systems need to be notified after installation. Others may need approval before installation, especially where the system is larger or combines solar PV, battery storage and EV charging.
If your solar panels export spare electricity to the grid, you may also be able to apply for a Smart Export Guarantee tariff. The Smart Export Guarantee, often called SEG, is where eligible small-scale generators can be paid by an electricity supplier for exported electricity.
There may also be EV chargepoint grants available for some renters, flat owners, landlords, businesses and other eligible applicants, depending on the current scheme rules.
Whether the property is in Horley, Reigate, Redhill, Crawley, Surrey or West Sussex, qualified installation matters. Solar panels, battery storage and EV chargers all need to be installed, tested, commissioned and registered correctly.
Is planning permission needed for solar panels or EV chargers?
Many domestic solar panel installations fall under permitted development, but this depends on the property, roof, location and whether the building is listed or in a protected area. EV charger installation is also usually straightforward for many homes, but the exact position, cable route and electrical setup still need to be checked.
You should be more careful if your property is listed, in a conservation area, has unusual roof layouts, shared parking, flats, rented accommodation or limited off-street parking.
This can apply to properties across Surrey and West Sussex, especially where homes are older, extended, rented or have shared parking. A home in Reigate may have different planning or roof considerations from a newer property in Crawley. A property in Redhill may have different parking access from a home in Horley.
For landlords and small businesses, permission from the property owner, managing agent or freeholder may also be needed before installing solar panels, EV chargers or battery storage.
JPEC Green Energy can advise on the practical installation considerations and explain what needs checking before work goes ahead.
What are the main benefits of solar EV charging?
The main benefit of solar EV charging is that you can use more of your own renewable electricity to charge your electric car. This can reduce your reliance on grid electricity and make better use of your solar panel system.
Other benefits include:
- Lower EV charging costs when solar electricity is used well
- Better use of roof space
- Less reliance on public EV chargers
- A more future-ready home energy system
- Improved use of solar panels with battery storage
- Better control through a smart EV charger
- Potential export payments for spare solar electricity
For homeowners in Horley, Reigate, Redhill, Crawley, Surrey and West Sussex, solar panels and EV charging can work especially well when the system is designed around your actual home and routine.
It can also be a strong option for small businesses in Crawley, Redhill, Reigate and Horley where vehicles are parked on site during the day and electricity is being used during working hours.
What are the limitations of charging an EV with solar panels?
Solar EV charging is useful, but it is not perfect for everyone. It will not guarantee free EV charging all year round, and it will not remove the need for grid electricity in every situation.
The main limitations are that solar generation is lower in winter, your EV needs to be plugged in at the right times, roof space may be limited and shading can reduce performance.
Battery storage can help, but it also adds cost and needs careful sizing. A smart EV charger can help control charging, but it still needs to be set up properly.
For some properties in Surrey and West Sussex, shading, roof layout, parking position or electrical supply may affect what is possible. This is why a proper survey is important before committing to solar panels, battery storage or EV charger installation.
The best approach is to get a proper survey and design before deciding. That way, you know what the system can realistically do before you spend money.
Common mistakes with solar panels and EV chargers
One common mistake is assuming that any EV charger will work perfectly with solar panels. In reality, if you want solar EV charging, you should look at a smart EV charger or solar-compatible EV charger that can work properly with your solar panel system.
Another mistake is installing an EV charger first without thinking about future solar panels or battery storage. This can still work, but planning ahead can make the installation cleaner and more flexible.
Other mistakes include:
- Choosing battery storage without looking at real usage
- Ignoring roof shading
- Expecting solar panels to fully charge the EV every day
- Not checking DNO requirements
- Relying on unrealistic savings claims
- Choosing equipment that does not work well together
These mistakes can happen anywhere, whether you are installing solar panels in Crawley, battery storage in Horley, EV chargers in Reigate, solar panels in Redhill or a full renewable energy system elsewhere in Surrey or West Sussex.
A proper solar survey helps avoid these problems. It gives you a clearer picture of what solar panels, battery storage and EV charger installation can actually do for your property.
Is solar EV charging worth it?
Solar EV charging can be worth it if you have suitable roof space, a sensible charging routine and a well-designed system. It can be especially useful if your car is often at home during the day, if you want to reduce grid electricity use, or if you are planning solar panels, battery storage and EV charger installation together.
It may be less suitable if your roof is heavily shaded, your car is rarely home during daylight hours, or the proposed system does not match your usage. In those cases, solar panels may still be worth considering, but the design needs to be realistic.
For many homeowners, landlords and small businesses in Crawley, Horley, Reigate, Redhill, Surrey and West Sussex, the best option is to look at the full picture. That means your roof, your EV, your mileage, your home electricity use, your future plans and your budget.
A properly designed solar panel and EV charger system can make a lot of sense, but it should always be based on your property and your usage, not just a standard package.
JPEC Green Energy can help
JPEC Green Energy can help you understand whether solar panels, battery storage and EV charger installation are suitable for your property. We can survey your home or business, design the system properly, install and commission the equipment, and explain the expected performance in plain English.
Whether you are in Horley, Reigate, Redhill, Crawley, Surrey or West Sussex, we can help you look at the best way to charge your electric car using solar panels and make better use of renewable energy.
If you are searching for solar panel installers in Surrey, EV charger installation in West Sussex, solar panels in Crawley, solar panels in Horley, solar panels in Reigate, solar panels in Redhill, battery storage in Surrey or renewable energy installers near you, JPEC Green Energy can help you understand your options clearly.
To discuss solar panel installation, solar EV charging, EV charger installation or battery storage, get in touch with JPEC Green Energy for a proper survey, design advice and quote based on your property and usage.
