All about our electricity tariffs, prices, contract period and more.
Here’s where you’ll learn how to sign up, estimate your usage, and what to keep in mind for the 24h supplier switch starting June 6, 2025.
If your registration wasn’t successful, don’t worry! Here, you'll find answers to common questions and guidance on how to resolve any issues with your registration. Follow these steps to ensure your details are accurate and get your service up and running smoothly.
If you moved recently, find most questions you may have here.
Not sure about your meter or Zählernummer? Read more here.
Curious about our sustainability credentials? See more here.
Want to know how our referral program works? See here.
If you have questions about payment methods and calculations, see here.
We’d be sad to see you go, but that’s part of our one flexible tariff promise.
Find anything about our amazing all-in-one Ostrom app here!
Smart EV Charging, Smart Heating, Solar & Battery Storage
Explore everything about Ostrom's Virtual Power Plant (VPP), how it works, and much more!
See how Ostrom handles your data and how you can ask for data deletion requests.
See how our flexible and variable tariff works and how you are notified.
What is a smart meter? Does Ostrom offer smart meter? Find out more here.
Find anything about our Ostrom Store.
Here you’ll find all the information about our partnerships (such as with E3/DC) and how you can benefit from them.