Ostrom™ ⚡️ Energy. Just Better.

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!

Just One Fair Energy Plan 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. Sign up with us now within minutes — and cancel every month.

Our Tariff

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.

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!

Ostrom’s Smart Products

Browse our smart products for even better control over your energy consumption. From smart meter integration to electric vehicle charging, optimising your consumption with Ostrom will benefit both the environment and your wallet!

Dynamic Pricing

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.

Join Waitlist

THG Quote

If you own an electric vehicle you’re elligible for a bonus of up to 300€ a year with the THG Quote. Register now and our team will guide you through the application process.

Optimized Charging

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.

Zaptec EV Charger

Charge Your Electric Vehicle (EV) With Ostrom—order a Zaptec charger right here and charge your EV during the cheapest and greenest hours using the Ostrom app.

Order Now

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.

Learn More

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 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!

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Energy. Just Better. Clean Electricity, Clean Price.