Energy. Just Better.
Clean Electricity, Clean Price.
✓ One transparent plan, cancel anytime
✓ Everything in English and German
✓ 100% green energy
✓ Available anywhere in Germany
✓ Get 35€ for every friend who signs up too!
Look who's talking about us
Energy As It Should Have Always Been
We’ve made it our mission to provide green electricity for all. By leveraging tech, we keep things lean and simple, allowing us to focus on our customer’s needs and stay 100% green — without needing to markup our tariffs like other providers.
Flexible & Fair
We sell our energy at cost because we'd rather our customers consume less, instead of more.
Clean & Green
We sign with 100% renewable energy sources, meaning your power comes from the best places.
Easy & Digital
Read your meter, manage your payments, or chat with us live—all in one app. No letters, no fax!
Fair For Everyone
No Tiers, No Tricks
Moving apartments? Leaving the country? We support you all the way. With our flexible tariff, you won’t be locked into contracts or sent bills for the electricity you didn't use. Sign up with us now within minutes — and cancel even faster.
Our TariffOur Generators are Genuinely Green
We only partner with reliable green energy sources across Germany. Explore our map to find out exactly where your Ostrom energy comes from!
Explore Generators
Digitizing The Energy Market
Because let’s be honest: it’s overdue. Simply sign up on our website and manage everything in our app. No need for "email templates" or translation apps!
All in One Place
Access your annual invoices, submit and track your meter readings, and adapt your monthly payments all within the Ostrom app.
On-Demand Support
With our live customer support chat, get answers to your questions within seconds — not hours or days!
English? German?
You Choose!
Deutsche Sprache, schwere Sprache. We're a proud German startup, but we also know our language ain’t easy. To maintain full transparency we offer everything — from signup to contract — in English as well.
Download the Ostrom app today!
What Our Customers Are Saying
We take pride in providing excellent customer service. But don’t just take our word for it: Hear it from customers who’ve already made the move to Ostrom.
Proud to Be a B Corp™
Ostrom is now a Certified B Corporation meaning we are part of a global community working to make high social and environmental impact. This strengthens our commitment to creating a better workplace, community and environment.
Breakups are Never Easy… Oh Wait, With Ostrom They Are!
Lean back and enjoy: When switching to us, we handle all the details with your old provider.
Seamless & Carefree
We manage the cancellation and handover process so you can stay lit at all times!
Uninterrupted Service
We'll sort everything right away! Even after the technical setup, we’re here to make sure everything works smoothly.
We Deal With Your Ex
Let Ostrom do it for you: We let your old provider know you’ve seen the light.
Green Energy Made Easy
Switch and save in only 5 minutes!