Let’s Be Clear — With One Tariff.

We love transparent pricing as much as anyone! Therefore, we offer just one single tariff with monthly cancellation, flexible and easy to understand for everyone.

Flexible & Fair

Everyone gets just one electricity-at-cost tariff.

Clean & Green

Know that your energy is always from 100% renewable sources.

Easy & Digital

Access everything through the Ostrom app. No paper, no fax!

Green Energy Made Easy

Switch and save in only 5 minutes!

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Our Mindset: Transparent & Green

Since we want to help reduce your energy consumption, we detach our profits from it. In contrast to traditional providers, our tariff is based on the current market price, including government taxes and levies.

We only charge a flat 6€ basic fee to cover our costs, that's it!

€6 Ostrom Basic Fee

Energy Generation Costs

Other Taxes + Govt. Levies

Grid Fees


Fair Stays Fair

By observing the market at all times, we’re able to minimize the impact of price fluctuation.

Since we sell our electricity at cost, prices may rise — or fall — according to market prices. In contrast to other providers, we also pass down savings to our customers. In any case, we will inform you at least four weeks in advance.

Cancellation is free at all times.

Calculate Your Tariff

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!
A meter with the meter number Zählernummer shown.

Smart Meters

You can sign up with or without a smart meter –because soon we will also offer a dynamic tariff with hourly billing.

Check out our dynamic tariff offering, so you can have full control over your electricity costs.

See Our Smart Meter Offer

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.