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

Meter Readings & Billing

Let’s get digital: Use the app to submit your meter reading, track your consumption, and change your monthly payment accordingly.

Your Consumption

For accurate billing, submit your current meter reading as soon as your contract starts. More readings (once a month) mean more accurate consumption predictions.

Only Pay for What You Use

With Ostrom, you only pay for the electricity you actually use. If you end up using less energy than expected, we'll refund the difference, and vice versa.

Adjust Your Deposit any Time

With the Ostrom App, you can track and overview your consumption at any time—and adjust your monthly payment accordingly.

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.