### Tariffs & Terms  
All about our electricity tariffs, prices, contract period and more.

### Sign Up & Switching  
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.

### Registration Issues & How to Resolve Them  
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.

### Moving  
If you moved recently, find most questions you may have here.

### Meter  
Not sure about your meter or Zählernummer? Read more here.

### Green Energy  
Curious about our sustainability credentials? See more here.

### Referrals  
Want to know how our referral program works? See here.

### Payments  
If you have questions about payment methods and calculations, see here.

### Cancellation  
We’d be sad to see you go, but that’s part of our one flexible tariff promise.

### App  
Find anything about our amazing all-in-one Ostrom app here!

### Smart Integrations  
Smart EV Charging, Smart Heating, Solar & Battery Storage

### Virtual Power Plant (VPP)  
Explore everything about Ostrom's Virtual Power Plant (VPP), how it works, and much more!

### Data Privacy  
See how Ostrom handles your data and how you can ask for data deletion requests.

### Price Adjustment  
See how our flexible and variable tariff works and how you are notified.

### Smart Meter  
What is a smart meter? Does Ostrom offer smart meter? Find out more here.

### Store  
Find anything about our Ostrom Store.

### Ostrom x Partner  
Here you’ll find all the information about our partnerships (such as with E3/DC) and how you can benefit from them.