EV Car seen from above

How to charge an EV from Solar And how many PV panels you'll need to do that. Get the most from your solar panels & electric car combined with a few tips and tricks that can double the range you add to your EV

How many panels do I need to charge my EV?

We get asked this quite a bit, so we've built a simple calculator to help show you what solar panels can do to charge your EV.

Below you can pop in the number & power of your panels, select your car, and it'll give you the average number of kms of range per day you could get.

Calculator for charging your EV from Solar
Your Solar installation & EV:
Total solar array kWp:
EV Power Usage:
Daily kms of range that would give: assuming 100% of the electricity is used towards charging your EV

The three methods of charging your EV

How many solar panels you need to charge an electric vehicle here in Ireland depends on which method you pick.

Charging Plan Used: Energia "Smart Drive" plan

Sell excess solar power to the grid during the day for 24 cents / kWh, then buy back (from 2am - 6am) for 8.15 cents / kWh.

This is the the best plan we've found for those with both solar and an EV due to the longer than normal four-hour window at night to charge your car very cheaply. Effectively you use the grid as your storage. And even better - for everyone 1 unit you sell, you get almost 3 units back if you charge during that 2am - 6am slot.

You can of course just charge your EV directly from the panels, but as you can see you don't get the same range added without that benefit of getting back more units than you sold to the grid.

Maximum buy back is 28 kW per night

We've assumed a 7kW charging speed (which is standard for home car chargers). So, in the 4 hour window that's max 28 kWh of electricity you can buy back from the grid each night and put into your EV.

If you are buying back more than that 28 kWh per night, you'll be buying back at a higher rate. The advantage that the sell-and-buy-back scheme does reduce when you starting going over the 28 kWh per night.

Guide figures only

Please take this as a rough guide only. We've purposefully over-simplified this to make it more usable. Also this gives the average figures only - there can be significant variability day to day depending on the weather.

In reality, you'll always have days where you'll need to pull power from the grid to charge you EV, but the above should give you a good idea as to how much of a reduction in your electricity consumption solar can give.

System 1: Charge directly from solar (if home by day)

Many electric car chargers have a special charging mode where they'll only use spare solar power after your house's needs have been fulfilled. Any electricity produced by your solar panels goes to your house first, then if there is spare power will go to charge your electric car.

They adjust the rate of charging to match the amount of spare power. As night falls, or if your house is consumption increases, the car charger will automatically pause until there is spare electricity again.

Our go-to car charger at the moment is the Zappi, which has this feature built in. It's called their "Eco+ mode". It comes with a good app too, where you can change charger modes and alike all from your phone. Handy if you are out and about and want to turn your charger up to full power. Many other brands of car chargers also have a similar feature though too.

Zappi EV charger

System 2: Sell excess solar power to the grid, then by back at night

The first main advantage here is you do not have to have your electric car at home during the daytime. With smart meters, you can sell your solar electricity to the grid during the day and buy it back at night. Effectively the national grid is doing the storage for you

Best value option

This can provide better value than charging directly by picking the right smart meter tariffs & timings. You can sell your solar electricity to the grid during the day at a high rate, then by back in the middle of the night at a cheap rate, making you a profit on every unit you sell then by back.

Best smart meter tariff for EVs + Solar: Energia's "Smart Meter Drive"

The current best smart meter tariff we've found for EVs + Solar is Energia's "Smart Meter Drive" plan.

Here, you can sell your spare solar to the grid during the day and get paid 24 cents / unit. Then, between 2am and 6am you can buy it back at their super cheap rate of 8.15 cents per unit, so you are making a profit here. For every 1 unit you sell to the grid you can buy back almost 3 units.

Other electricity providers also have these "Night boost" plans as they are sometimes called, where there is a super-cheap window in the middle of the night. Some companies only offer 2 or 3 hours per night though, so Energia can be worth considering with their 4 hour window which give you enough time to get a decent amount of range added to an electric car.

Is 4 hrs enough to charge your EV?

You will not get a full charge in 4 hrs. But, for most people, it'll add enough range for their daily driving needs.

Smart Meter Plan Hours of Cheapest Electricity Charge added to EV assuming typical 7 kW charger Kms of range added Based on Hyundai Kona EV @ 16 kWh / 100kms
Energia "Smart Drive" plan 4hrs @ 8.15 cents / unit 28 kWh 175 kms
SSE Airtricity "Night Boost" plan 3hrs @ 10.55 cents / unit 21 kWh 131 kms
Electric Ireland "Night Boost" plan 2hrs @ 12.25 cents / unit 14 kWh 88 kms

System 3: Store in solar batteries, then charge your electric car from these

In short: too expensive to be viable

We are often asked about how many batches you will need to store enough power during the day to then charge an EV at night. In reality the numbers do not add up there.

A typical electric car might have a battery of anything between 40 kWh and 75 kWh. A typical solar storage battery can store 5 kWh of power, so you'd need 10 or more to be able to store enough to charge your EV.

Add just one solar storage battery and can add €2,400 - €2,800 to the price of a installation. Yes solar batteries do get a bit cheaper if you add multiple, but the costs would still be far too high to ever be viable.

Get a solar quote

Use this quick and easy form to get things started. Click here to find out how we will generate your quote. Just need some ballpark figures for now? You can find illustrative example quotes here...



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Shane EganMay 2024
Competitive with no hidden extrasThis is a very simple review - if you need to find out some useful info about the benefits and return on investment details of solar you won't find a better website than purevolt.ie. From our own personal experience of then choosing them for our install it was entirely positive - We got 3 quotes and there's was the most competitive with no hidden extras. It was a tricky enough set up over two locations which was handled efficiently and on time over two days with no mess and no fuss. From the design guys to the installers/electricians and the background office staff everyone was a pleasure to deal with and they really know their stuff. We would have no hesitation in thoroughly recommending PureVolt to anyone considering solar power.
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John DalyMay 2024
Good value and exceptional serviceIf you're 'still thinking about' investing in solar panels and/or not sure who to go with, look no further than PureVolt Solar: good value and exceptional service from start to finish. And, as a bonus, they're lovely people! They've recently completed an installation for me and I couldn't be happier.
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Pierce KennedyApril 2024
Good price, fast, and high quality.Great service from Purevolt. Good price, fast and high quality install. Couldn’t fault them
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Emily ChurchApril 2024
Would highly recommend Purevolt!I’m so happy we went with Purevolt for our solar panels. Everyone we dealt with was extremely helpful and communication was brilliant, and we never felt like we were being pressured to buy a bigger or more complex system than what we wanted. The install itself was great, the guys arrived on time and were happy to answer all our questions, and did a great job cleaning up after too! Kelly was particularly helpful too with answering my questions and helping with the grant process. Would highly recommend purevolt for anyone considering solar!
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John BaylyApril 2024
The Purevolt team is a credit to the industryThe Purevolt team are a credit to an industry that is getting some bad rep. The initial enquiry was competently returned in an extremely professional and structured format with all equipment details. The visit by Ian was to the agreed minute and all required details taken onboard. The order information submitted by Kelly was very simply followed and all small queries answered very promptly and eloquently. The installation date was the installation date with details given of what turned out to be an exceptionally courteous, engaged and competent installation team who genuinely have pride and enthusiasm for what they do. They also have "dustpans ". I can't recommend the team at purevolt highly enough and am and will further recommend them to my friends and family and colleagues which is the ultimate recommendation I can give anyone. I hope the efforts of the team are appreciated by all levels at PureVolt solar. .
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Phil MooreApril 2024
Very professional and promptPureVolt were very professional and prompt throughout the entire process of getting my solar panels installed. Highly recommend.
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Helen DayFebruary 2024
Everything ran smoothlyFrom the start, Purevolt were very professional and explained everything to us and kept us updated. From the panels being fitted right through to the turning on of the connection everything ran smoothly. What I liked about Purevolt was, when they said they would be here, they were here, no waiting around for them. Also, they were very competitive with their pricing and they didn't try to sell extras that we didn't need. We would have absolutely no problem recommending this company.
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Andrew KellyFebruary 2024
Efficient and communicative - would certainly recommend.
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K O'DDecember 2023
We couldn't be happier with the service and system itselfFrom the initial site inspection with Dan and the emails back and forth with Kelly we couldn't be happier with the service and the system itself. Everything was communicated clearly and all completed in the timeframe given. The work was very neat and done well. I would be happy to recommend PureVolt Solar to anyone.
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Gordon Hamilton-JonesDecember 2023
The time and effort put in was fantasticI would like to give a big thank you to all of the team at PureVolt who were involved in the design and installation of my recently installed solar panel system. The time and effort put in to what was a complicated design, due to my roof layout, was fantastic (Big thanks to Dan). The two installation teams, the panel fitters on the roof, and the electricians who connected in the Inverter, battery and eddi, were also fantastic. On the back end of this, back in their office controlling all the scheduling and admin etc., answering my many questions about many things but specifically the Grants, Kelly was a star. If you are considering a Solar Panel installation, PureVolt are the company you should go to.
Reviewed on Google
James CurranDecember 2023
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GearoidDecember 2023
Very neat, very well explained, super service.I had a great experience with John & Kelly on the initial quote and planning of the installation. The installation was done over 2 days and was perfect. Very neat, very well explained, super service. I had an issue with my hot water cylinder constantly heating when there was enough power but that was sorted very quickly. I would highly recommend the PureVolt team.
Reviewed on Google
Brian GDecember 2023
All very seamless. System is working great.I got three quotes for a Solar PV system and decided to go with PureVolt. The quote was in line with the others and they managed to get more KW out of the space available. We got a 4.5kw system in the end. Communication all along was excellent. The system was installed about 5 weeks after we ordered it, and we received our SEAI grant 3 weeks after the BER assessment - all very seamless. System is working great.
Reviewed on Google
Terry StoreyNovember 2023
Professional, friendly, organised and very tidyThe PureVolt team have been a pleasure to deal with from start to finish. They were professional, friendly, organised and very tidy. We have no hesitation in recommending this company to anyone.
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Paul DoyleNovember 2023
Each member of staff I dealt was fantasticI did a lot of research and spoke to many Solar installers before settling on Purevolt. I found them not only knowledgeable but willing to discuss any concerns and ideas that I had. At no point did I find them trying to oversell what I didn't need. Their prices are very competitive and they show clear indicative examples on their site, which I think is very open. You have a fair idea of what you are getting into with them before even making contact. From the outset, each member of staff I dealt was fantastic. Their site visit was the most thorough of them all. Checking the roof, the attic where I was siting the equipment, the main fuse board and even where the earth was situated in the hotpress. This resulted in no surprises at installation. After sales service has been excellent, including a follow up visit from a technician to go through any queries I had and to verify all had been done correctly. Based on my experience there is nothing I could find fault with the company and I plan to recommend them highly if anyone asks (my first is already talking to them). As to the actual result from the installation, very pleased with the outcome so far. Even at this time of year my bills have been halved and will only improve as I get the system setup to my liking. As a user I get access and control over the system, enabling me to tweak and adjust as I need. You don't have to do this, I just like to :)
Reviewed on Google
sean meagherNovember 2023
The quality of the install was perfectI would highly recommend the Pure Volt team. Great customer service, very knowledgeable and helpful. The communications from the roofers and electricians during the install were excellent and the installation as a whole was completed on time and the quality of the install was perfect, very neat and tidy. The panels are in 4 months now and are performing even better than expected.
Reviewed on Google
Barak PearlmutterNovember 2023
10/10, would recommendWe got bids from a bunch of installers, PureVolt was best on all dimensions including price. The install was seamless. 10/10, would recommend.
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Philip LeeOctober 2023
Great workmanship, neat, quick and professional.Great workmanship, neat, quick and professional. 4Kw system is working perfectly and has made 3Kw since March 2023 installation.
Reviewed on Google
Iska EuropeOctober 2023
Excellent company to deal with from start to finishPureVolt Solar is an excellent company to deal with from start to finish. Following comprehensive discussion, the installation is professional and with minimal disruption. They also see to relevant paperwork, including SEAI grants. Also, our installation was subject to a random check by SEAI, who found every aspect was excellent. John, Westmeath.
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Anthony CondonOctober 2023
Very Good ServiceVery Good Service
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M HSeptember 2023
I was left with a professional and tidy installation.I started making enquiries to Solar installation companies in the autum of 2022. Most companies didnt bother to respond, some did but soon lost interest when they realised I had done my research and didnt want to just go with "what everyone else does" (whatever that means). PureVolt were the ONLY company that bothered to do a site visit and discuss what my requirements were and if they were feasable. Anything that was not possible was worked around with suggestions that were explained to me with no sales pressure to "Sign today for a special discount". As it turned out, they were wone of the more better priced quotes unlike some of the gougers out there. My install date had to be pushed back a few times due to supply issues (everyone wanted solar in Autum 2022), but i was kept well informed by John each time. Not once did i have to chase for an update. The guys who came to do the installation were complete proffesionals! They discussed everything with be before they started. I wanted cables routing in a certan way to a specific place and Ian the electrician explained where he could and could not do what i was asking and provided reasons why. The placement of panels on the roof was a tricky one (which is why many companies went silent upon seeing a photo of the house) but the lads stuck at it and I was left with a professional and tidy installation. (I think i called Ian the electrician "an artist"). After a month or so, I started getting error messages on the inverter. I contacted PureVolt and they raised a ticket with the support team for the inverter. After the support team checking the inverter remotely a few times, PureVolt organised a replacement inverter and came to fit it. I think after sales support is sometimes overlooked by people comparing prices only. Many companies install, take your money and you never hear from them again when there is a problem. I am confident that 9 months on, I could contact PureVolt and receive support. Highly recommended!
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kevin donovanSeptember 2023
I have highly recommend PureVolt to anyoneVery happy. I have highly recommend PureVolt to anyone that enquired about our Solar system.
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Dan CatanaseSeptember 2023
I would choose them again.My system was installed approximately one year ago. My overall experience with PureVolt Solar has been extremely positive. From the initial contact, site survey to customising the technical solution to suit my particular case and needs, I must say they were very responsive to all my questions, prompt in addressing any concerns, quick and tidy installation and great after sales customer experience. If I were to install another system I would choose them again.
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Charles McCarthySeptember 2023
Very neat workVery pleased no messing very neat work no cleaning up afterwards
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Catalin CucuSeptember 2023
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Eamonn EverardSeptember 2023
Good efficient serviceGood efficient service
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Paweł PomianekSeptember 2023
All goodAll good
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Michael FarragherAugust 2023
A pleasure to deal withInstalled 21 panels in Feb 2023 which have operated successfully todate. Their responsiveness and knowledge when compiling the quote to proccessing the paperwork required resulting in a efficient install in 2 days, has resulted in PureVolt Ltd being a pleasure to deal with and who l would return to again.
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Enda DonnellanAugust 2023
Top company.Top company..Any issues are always solved
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Martin TreacyAugust 2023
I can see results alreadyI found pure volt solar to be very professional and great to deal with. I can see results already, very pleased so far.
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Enda and Helene DooleyJuly 2023
...superior to competitors.From the outset our experience with PureVolt has been positive. We had a rapid response to our initial enquiry and the specification and costing was superior to competitors. The estimated time to complete the project was accurate. At all times our queries were answered rapidly. The on-site work was completed within two days and the team left the site tidier than before arrival (not everyone will hoover a tarmacadam drive!). Early days yet but the system is operating to our satisfaction. We would be very happy to work with PureVolt again.
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Seamus MorrisseyJune 2023
Easy to deal with and had great advice, no hard sellTop class from beginning to end, John was easy to deal with and had great advice, no hard sell, roofers and electricians top class and Kelly sorted out the paperwork with great effeciency, highly recommend Purevolt.
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adrian barryJune 2023
PureVolt going the extra mile for my tricky roof!I had a complicated setup and the very quickly found me a good solution and made sure it was at the most competitive price it could be. The installation was done very well, neatly and with PureVolt going the extra mile for my tricky roof!! We've been producing 65% of our electricity from the roof since they installed it and are on track to exceed our savings. I highly recommend them.
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Raymond CarrickJune 2023
PUREVOLT is a great company to work with...PUREVOLT is a great company to work with from first contacting them. I found their website has great information and worth going through before you decide what system you want. Very happy with the price. They did everything, except I needed to set up information for SEAI about the grant which the customer must do themselves. Had panels installed less than 2 months after first contacting them and everything was installed in one day.
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Darren McJune 2023
...can't compliment them enoughEverything went perfect from the work that was done on roof so tidy and neat can’t see cable all secured perfectly, to the electricians Tadhg and Jessica I can’t compliment them enough there work is first class nice neat, on wall ran cable down along the stud work cleaned up after themselves,a world of information went through everything all questions answered great information and told we’re only a phone call away if any problems, and kelly with all information and forms filled ahead of time Esb forms sent in ,ran very smoothly cant praise the lads enough thanks Purvolt
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Daniel FitzgeraldJune 2023
Highly Recommend.Excellent service and personnel from start to finish. Highly recommend.
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Rob ByrneJune 2023
Great service... and total professionals!Can’t recommend PureVolt highly enough. Great service from start to finish and total professionals! Delighted with my new Solar install.
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Michael JamisonJune 2023
Would highly recommend them.Ian, Kelly and the team in pure volt were excellent from start to finish. Very professional company. Any questions I had they got back to me straight away. The work of installing the solar panel system is neat and tidy. would highly recommend them. I will definitely be back to them if I need to add anything else to the system.
Reviewed on Google
Karen HammondApril 2023
Excellent workmanship and neat installationPurevolt were excellent to deal with from the quote all the way through to the installation. Extremely professional, excellent workmanship and neat installation. Purevolt completed all the paperwork for grants as soon as the installation was complete. Highly recommend them!
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Manish KheterpalApril 2023
Professional from start to finishGood planning and professional from start to finish.
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Ken CooganApril 2023
Professional InstallPleasure to deal with and professional install.
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Mathies Eduard RasmussenApril 2023
...installed just the way we wanted itWe had our solar & battery system installed by PureVolt in April 2023. Very short lead in time of just 13 days from booking to install for us. They were able to accomodate all of our requests, and everything was installed just the way we wanted it.
Reviewed on Google
Bryan ScullyApril 2023
We are delighted we proceeded with PureVoltCould not speak more highly for PureVolt . From start to finish, it was excellent and stress free. Very competitively priced and provided good, honest advice without trying to sell anything which wasn't needed. The PV system was installed on time and tidy by a very professional team to which they answered any queries we had regarding the installation. The PV panels themselves are performing brilliantly so far. We are delighted we proceeded with PureVolt and would highly recommend them.
Reviewed on Google
John KilroyApril 2023
...delighted with the resultsDelighted with service from beginning to end in dealing with Purevolt solar. They were very competitively priced, had an incredibly fast turnaround time and fitted top quality equipment. I found John very straight talking and honest in his appraisal of the systems and options available - he is an electrician by trade and has worked in solar for years - he is not a salesman just interested in maximising sales and felt he was genuinely interested in providing the best system to suit our needs. The standard of work carried out by the installers was excellent and the electrician Daniel has a real pride in his work and helped me understand the system and the apps to monitor/ control. We now have solar panels installed and are delighted with the results whereby we can monitor our live solar generation and adjust our usage accordingly and heat our water (using my eddi) and sell the excess electricity back to the grid. As well as going green we are seeing a significant drop in our electricity bills so its a Win Win!
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Adrian InsleyMarch 2023
Great serviceGreat service. Great support from all PureVolt staff. Would highly recommended this company.
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Stefan BinkFebruary 2023
A pleasure to deal withOnce I decided to go with solar panels- the competence, professionalism and delivery of project was top class. The technician that put panels on roof, and the electrical technician that put in the battery and electric press and connected all to house fuse box, were very knowledgeable, experienced and a pleasure to deal with. From the initial contact with the Project Manager to the final installation- the full journey was well explained and I was confident and assured that the installation was delivered to the highest standard.
Reviewed on Google
Martha SFebruary 2023
...so grateful to have found PurevoltMy husband and I can't provide enough superlative praise to John and his team. We had a system of ten photovoltaic panels installed on our roof this past autumn and found the entire experience a very positive one, from Kelly overseeing logistics from the office to our installation team, who didn't leave until they were certain that all of our questions had been answered. We thought long and hard about the initial expense of installing such a system, but we have absolutely no regrets and have found the panels to be producing at a level in excess of our expectations. To do something good for the environment and our grandchildren, as well as something that has already begun to reap financial benefits is a win win. We are so grateful to have found Purevolt.
Reviewed on Google
John HudsonJanuary 2023
I'm delighted with PureVoltOnce you have managed to make contact and get a quote (which, as with other solar installers, can take some time) the installation and service from PureVolt was excellent. Very competitively priced and gave good, honest advice without trying to sell anything which I didn't need. The solar panels were installed on time by very professional and friendly roofers and electrician who answered any questions regarding the installation. Following the installation SEAI inspected the works and found nothing to be concerned about. PureVolt's John Egan attended the inspection to in order that he could rectify any problems should they arise. For the first couple of days after the installation I had some minor issues with the inverter app which PureVolt resolved by liaising with the inverter manufacturer. I'm delighted with PureVolt and I highly recommend them.
Reviewed on Google
Tim HynesNovember 2022
Highly recommendOnce I decided to go with solar panels- the competence, professionalism and delivery of project was top class. The technician that put panels on roof, and the electrical technician that put in the battery and electric press and connected all to house fuse box, were very knowledgeable, experienced and a pleasure to deal with. From the initial contact with the Project Manager to the final installation- the full journey was well explained and I was confident and assured that the installation was delivered to the highest standard.
Reviewed on Google
Alan DeacyNovember 2022
Extremely happy with the serviceEnquired about a new PV system. John phoned me back shortly after my enquiry and went into great detail about the different systems and tailored one that would suit my needs. I received a very competitive price. Extremely happy with the service this company provided. Very professional and knowledgeable in the solar industry.
Reviewed on Google
Aidan BerginNovember 2022
Would highly recommend this companyWould highly recommend this company for your solar installation, efficient, tidy and the lads keep you well informed as the installation proceeds.
Reviewed on Google

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