Don't pay too much for your EV charging

Join Synergi to save up to 50% on your EV charging costs
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The ideal charging solution for drivers with spot-price contracts

Synergi smart charging automatically uses the cheapest hours of the day to charge your vehicle at home. Just plug in your EV, select when it should be fully charged the next day, and Synergi does the price optimization for you.


Smart charging with Synergi has many benefits:

Save money: Automatically charge during the cheapest hours of the day and put those savings in your pocket.

Reduce emissions: Save CO2 emissions by charging when electricity is mainly coming from renewable sources.

Avoid hassle: Worry less about volatile electricity prices. Our software does the price optimization for you.

Save +500€ annually by charging your EV with Synergi

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Link your vehicle to Synergi in minutes

We support 90% of EV brands without extra hardware. You only need an electric vehicle and login credentials. We connect directly to the vehicle’s software – as easy as it gets to start saving.

The EV brands supported by Synergi do not indicate affiliation.

Try it out today!

Don’t just take our word for it

Here’s what happy users have said about us





Got solar panels at home? ☀️

Plug into Synergi Solar Charging and power your EV with your own emission-free electricity! Simply link your EV and solar inverter to our app and enjoy the power of the sun to charge your EV for free. Available on web app for now. Coming soon to mobile!

Learn more about Synergi Solar Charging




Frequently asked questions

  • What is Smart Charging?

    Smart charging means charging your car when the electricity is cheapest (based on real-time electricity prices) and greenest, meaning that renewables predominantly produce it.

    All of this happens automatically, and all you have to do is download the Synergi mobile app, connect your EV, and set up your charging preferences. All done within a few minutes.

  • What do I need to use Synergi Smart Charging?

    To use Synergi Smart Charging, you only need an electric vehicle. Plus, the charger you have at home or in any of your private residences where you want to use Smart charging. Then, you have to download our app from the Google Play Store or Apple App Store.

    That’s it. No additional hardware is needed. Synergi optimizes your EV charging by connecting to the car’s cloud services.

  • How does Synergi Smart Charging differ from others?

    Thousands of EV drivers trust Synergi Smart Charging because of its accuracy and simplicity in generating savings. Here are a few other reasons:

    • We only optimize the charging in saved locations, which is why there is no need to switch off Synergi separately outside the home (e.g. at public charging points).
    • We offer EV solar charging for the most popular inverter brands, allowing us to serve more users who have both EV and solar panels at home.

    PS: Please note that EV Solar Charging is currently not available in the mobile app. However, if you wish to use it you can sign in with your Synergi credentials to our web app, link your inverter, and start charging with your own solar power! We are developing the feature for mobile and will inform you via email once it is live!

  • Can I set a “State of Charge” charge limit with Synergi?

    We recommend that if your vehicle manufacturer allows you to set an SoC limit from their app, you do so. Some EV manufacturers make this possible today. However, this is yet to be possible via Synergi but is part of our feature development roadmap. All future mobile app developments are informed via our Changelogs and email newsletters, so stay tuned!

  • What if I need to charge my car immediately?

    No worries. You can toggle on ‘Instant charging‘ on the mobile app if you need to charge your car immediately. Note that this charging is likely more expensive and less green than Smart Charging.

  • Should I use the Synergi mobile app or web app?

    Short answer: If you want to use Smart Charging and Smart Climate, download the mobile app! Smart Solar (solar charging + solar monitoring) is coming to mobile before the 2024 summer.

    Long answer: When we started the company, we launched a web app to develop the product faster based on your wishes. However, a mobile application has been widely requested by most customers. We launched a mobile app at the end of 2023 with the Smart Charging feature. Smart Climate was also added recently, and Smart Solar will be added before the 2024 summer.

    The web app supports all smart features, but our mobile app will be the only application you will need to use Synergi in the future. If you want to use our solar features, you can use the mobile and web apps simultaneously with your Synergi credentials, for now.

  • Do I have to pay to use the app?

    For now, Synergi and all the features you love to use are free. During 2024, we will make some of the smart features premium, meaning that some will be under a subscription. However, some features will always be free.

    We are also partnering with energy providers so that new audiences can find their way to Synergi and use the services you’re already using from us. So, you might see your energy provider joining Synergi very soon!

    While we work on fine-tuning pricing and getting energy companies on board, enjoy all features for free! We’ll inform you of any changes well ahead of time.

  • Can I get a report of my Smart Charging sessions to share with my housing company?

    Yes! We are happy to share a PDF report of your smart and non-smart charging sessions. We can generate this report for you and hope to add an automated way for you to request the information directly from the Synergi mobile app in the future. In the meantime, please send us your report requests to [email protected].

    When sending us an email, please add the following information so we can process your request as soon as possible: Timeframe (Start date – End date) and the email that you use in the Synergi app. If you want transmission costs and margin included in the report, please add that too!

  • Where does Synergi Smart Charging work?

    Synergi helps EV drivers charge smarter all around Europe. Currently, supported countries include: Austria, Belgium, Estonia, Finland, France, Germany, Latvia, Lithuania, Luxembourg, the Netherlands, Norway, Poland, Sweden, Denmark, and Great Britain.

  • How can I disconnect my car from Synergi?

    You can disconnect your car directly from the mobile app by clicking on “Disconnect vendor button.”

    Alternatively, you can disconnect your car by changing the password of your car login (e.g., through your Audi or Tesla app), which will remove Synergi’s access to your car at once.

  • How can I delete my Synergi account?

    If you use the mobile app, you can delete your account automatically from Settings > Delete account.

    If you use the web app, email us at [email protected] to delete your account. We delete your account and all your data from our platform and services.

  • Do you support other devices besides electric vehicles?

    Yes, we support solar inverters and heating and cooling devices like heat pumps. You can read more about our Smart Solar and Smart Climate features from their respective pages.

    If you wish to see your heat pump or solar inverter brand or any other devices supported faster, email us at [email protected]. You can follow updates on new device support from our changelogs pinned to the website.

  • How does Synergi protect my privacy and secure my device data?

    At Synergi, your data privacy and safety are a top priority.

    We never save or store device login information (username, password) on Synergi systems. We only partner with reliable and widely recognized device connecting providers to connect to your devices via cloud services.

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