Article

Synergi app review: How Tuomas saved almost €300 in charging costs

Harri Iisakka

February 18, 2025

Tuomas Ripatti had a straightforward yet important goal: he wanted to save money while making the most out of his electric car.

After purchasing his electric vehicle—a Volkswagen ID4—two years ago, Tuomas faced the typical hurdle many EV owners encounter: finding an efficient, cost-effective way to charge at home. Like many others in Finland, Tuomas has also switched to a dynamic electricity plan, or "pörssisähkö," meaning the price of electricity fluctuated based on demand.

However, manually managing when to charge and making sure he didn’t miss the lowest rates felt stressful and time-consuming. That’s when Synergi smart charging entered the picture.

Effortless smart charging with Synergi

Tuomas discovered Synergi’s smart charging solution after hearing about it from an acquaintance. What drew him in was the app’s promise to manage his charging needs automatically—ensuring his car charged at the most affordable rates, without him needing to monitor the system constantly.

The convenience of Synergi’s smart charging feature was a game changer for Tuomas, who has now used the app for two years. With the app he has been able to set smart charging plans that automatically adjust his car’s charging times to take advantage of the cheapest energy available, typically at night.

The result? Big savings

During 2024 Tuomas managed to save whopping 292€ on his annual charging expenses. "I charge 99.9% of the time at home with Synergi", said Tuomas.

What has impressed Tuomas the most, isn’t just the savings. He has appreciated how easy it has been to set up and use. “The app is very intuitive, and once it’s set up, I don’t need to think about it anymore. It’s all automated. And connecting the car in the first place happened also surprisingly easily” he shared.

Why Synergi stands out for Tuomas

For Tuomas, the most valuable aspect of Synergi is its hassle-free operation. “It’s almost like having a personal assistant for your EV charging,” he said. The app takes care of everything to ensure the EV charges when its cheap. In addition, Synergi’s user support has been top-notch. When Tuomas faced a brief issue with his car’s connectivity, the Synergi support team was quick to respond and help him resolve it, “5/5 stars” as he described.

Tuomas’s advice to other EV owners

“Don’t hesitate to give Synergi a try. If you have an EV and are on a variable electricity plan, this is a no-brainer. The savings are real, and the convenience is worth it. Synergi really makes the whole process effortless”, said Tuomas.

“At first, it did take some courage to trust that the car is charged in the morning. But taking into account that I have used it more than two years and encountered only 3 errors during this time really builds the trust. And to note, all of the errors have been on my cars ‘faults”.

With Synergi smart charging, Tuomas has not only saved 292€ annually but also made his daily charging experience smoother and more efficient. As smart charging continues to evolve, he’s looking forward to even more ways to optimize his energy use in the future.