Energy. Just Better.
Clean Electricity, Clean Price.
✓ Save up to 35% or 500 € on your energy bill annually
✓ Everything in English and German
✓ 100% green energy
✓ Available anywhere in Germany
✓ Get up to 50 € for every friend who signs up too!
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 Energy for Everyone
Moving apartments? Leaving the country? We support you all the way. With our flexible variable tariff, you won’t be locked into confusing contracts or get stuck with high prices. Plus, smart meter users can take advantage of dynamic pricing with our SimplyDynamic tariff. Sign up within minutes, cancel anytime.
Our 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.
With our live customer support chat, get answers to your questions within seconds — not hours or days!
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!
Take control of your energy costs! Our Dynamic Pricing lets you compare your consumption to the hourly market prices so you can use more when it costs less, and vice versa.
Discover Ostrom's smart heating and cooling solutions. Take control with our user-friendly Ostrom App, saving energy and enjoying a comfortable home all year round.
Need your electric vehicle ready to go when you are? Just plug in and relax! With optimized charging, you can rely on the Ostrom app to charge your car during the cheapest hours.
Get everything you need for your smart home! From intelligent assistant speakers and electric vehicle chargers to smart thermostats and much more. Find it all on the Ostrom Store!
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!
We'll sort everything right away! Even after 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!