🎁 Get a bonus of 50 € or more with code "VIESSMANN1"

Dynamic tariff, fully optimized.

100% stress-free switching service

Benefit from hourly prices

Over 100.000 satisfied customers

TÜV Nord-certified green electricity

Compatible with the Viessmann HEMS

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What Is A Dynamic Tariff?

Our dynamic tariff updates every hour to match the real electricity market price - so you always pay what energy actually costs. When solar and wind production are high, prices drop. In the evenings, when demand increases, they rise. By shifting your consumption to the cheapest hours, you can save up to 35 % - and the Ostrom App makes it easy for you.

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Multiple Award-Winning Electricity Provider

The numerous awards we have received in recent years confirm our commitment to setting the highest standards of quality, transparency and customer focus. With our English-language support, we help you understand the German energy market and support you if problems arise.

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Benefits At A Glance:

Electricity At Market Price

With our dynamic tariff “SimplyDynamic”, you’ll benefit from hourly prices based on the EPEX spot price, as well as 100% certified green electricity.

Benefit From Affordable Solar And Wind Power

With a dynamic tariff, you benefit whenever renewable energy is abundant. When the sun shines or the wind blows, electricity prices fall - and your savings rise.

Reduce Costs Through Optimisation

Optimize your energy use with the Ostrom App by shifting consumption to the cheapest hours. You’ll cut your electricity costs and support a cleaner grid - since the lowest prices usually mean the greenest energy.

Stay Protected From High Prices

With the Ostrom App, you can see tomorrow’s electricity prices and track your past usage - making it easy to avoid price spikes and stay in control of your costs.

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Ostrom dynamic tariff smart meter graphic

Smart Meter: Precise Energy Tracking

To use a dynamic tariff, you’ll need a Smart Meter - it’s the only way we can receive your hourly consumption data. The best part? You’ll never have to submit meter readings again. Learn more about the benefits and how to get your Smart Meter via Ostrom.

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Your Dynamic Tariff in 3 Easy Steps

Step 1

Switch to Ostrom

Switch to Ostrom in just 5 minutes. We will take care of cancelling your previous electricity contract and ensure that your switch goes smoothly and without interruption.

Step 2

Order Your Smart Meter

Don't have a smart meter yet? No problem. We'll help you apply for one. Once your smart meter is installed, we can record your electricity consumption on an hourly basis – the basis for smart saving.

Step 3

Switch To Hourly Billing

As soon as we receive your consumption data, we will switch you to hourly billing. From then on, you can take full advantage of the cheapest hours.

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Why Ostrom?

We’re different from other energy providers. But how exactly?

Calculate your rate

Pay only for what you use each month

Tariffs with monthly terms

Fixed 12-month tariff

Dynamic tariff

100% certified green electricity

Fast, friendly support

Switching service with a satisfaction guarantee

Request a smart meter

Ostrom App

Self-Service Center

Over 1,400+ integrable devices

Bonus for EV charging

Overview of hourly electricity consumption

Overview of solar production

Smart features to lower your electricity costs

Real-time overview of your devices

Ostrom

Other providers

up to €300/year

with smart meter

Green Energy Made Easy

Switch and save in only 5 minutes

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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.