SimplyDynamic - Our Dynamic
Electricity Tariff

Shift your energy usage to the cheapest hours and cut your electricity costs by up to 35 %.
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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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Optimize Your Usage With The Ostrom App

With the Ostrom App, you can see tomorrow’s electricity prices in advance — so you know exactly when power is cheapest. Control your devices, automatically avoid price peaks, and take full advantage of low-price hours. The Ostrom App is compatible with over 1,400 devices, including EVs, inverters, home batteries, and heat pumps.
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Benefits At A Glance:

Electricity At Market Price
We don’t add any profit margin to the electricity you use. You only pay a 6 € monthly service fee — that’s as fair as it gets. Even Stiftung Warentest and Finanztip agree.
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 Optimization
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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Germany’s Cheapest Dynamic Tariff

If you go dynamic, go with Ostrom. According to Stiftung Warentest and Finanztip, Ostrom SimplyDynamic is the most affordable dynamic electricity tariff in Germany. Why? Because we don’t add any profit margin to the energy you use. You only pay what we pay — the electricity price, grid fees, taxes, and other costs. We finance ourselves solely through a 6 € monthly service fee.
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The cheapest dynamic tariff — according to Finanztip
Source 1: Finanztip
“For our sample household, the SimplyDynamic tariff from Ostrom was particularly affordable.”
Stiftung Warentest, 15.08.24
Source 2: Stiftung Warentest

Save Even More With NeoGrid® AI

NeoGrid® AI is our virtual power plant — connecting thousands of electric vehicles into one intelligent system. It balances fluctuations in the power grid and helps keep it stable. By participating, you share the flexibility of your car’s battery with the grid and get rewarded — earning up to 300 € per year.
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What Our Customers Are Saying

View Testimonials
Joachim Vollstedt – SimplyDynamic

Simply the best electricity provider we've ever had.

After several unsuccessful attempts to get a smart meter from the network provider, Ostrom came into play. I immediately accepted the unrivaled affordable offer. Since then, heating with electricity and our heat pump has been absolutely without alternative. Green electricity, sometimes free or even with cash back, fair, monthly, and transparent billing. Simply the best electricity provider we've ever had. What more could you want?

Felix Stausberg – SimplyDynamic

Allows us to automatically save on electricity costs.

By connecting our heat pump, PV system, and electric car with the Ostrom app, we optimally benefit from the dynamic tariff. This allows us to automatically save on electricity costs and use energy in the best possible way.

Frank Anderl – SimplyDynamic

Ostrom helps me save money with the Dynamic Tariff.

Ostrom helps me save money with the dynamic tariff. In connection with my wallbox, I charge my EV at favorable grid prices. The app is clearly designed and the support responds very quickly!

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. You’ll start with SimplyFair while we wait for your Smart Meter installation or consumption data.
Step 2
Order your Smart Meter
Don’t have a Smart Meter yet? We’ll help you get one. As soon as it’s installed and your data is available, you’ll automatically switch to SimplyDynamic — and start saving.
Step 3
Switch to SimplyDynamic
Your Smart Meter has been installed, and we’re now receiving your consumption data. We’ll switch you to the SimplyDynamic tariff at the next available opportunity.
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Why Choose Ostrom?

We are different from other energy providers. How?

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How You Are Charged
Pay only for what you consume monthly
Forget estimated bills or overpayments. With Ostrom, you’re charged only for the exact electricity you use, calculated monthly. It’s transparency you can trust.
1 month price guarantee
With SimplyFair we keep it fair by closely monitoring market rates and passing on the best price to you. This means that prices may also sometimes rise, but these do not happen very often.
Unit price changes hourly
Save money by taking advantage of wholesale energy prices that change every hour. Use our SimplyDynamic tariff, powered by smart meters, to consume during cheaper times.
Monthly cancellable
Flexibility matters. At Ostrom, we believe in freedom, not contracts. Cancel or adjust your plan at any time, without penalties or complications.
How We Support You
Manage through our feature-rich app
From tracking your usage and payments in real-time to connecting smart devices and optimising your usage, the Ostrom App makes managing your electricity simple, digital, and paperless.
Friendly customer service in English
Whether you need guidance or answers, our knowledgeable support team is here for you—in English or German. Enjoy fast responses via live chat or email.
Excellent Trustpilot Rating
Thousands of happy customers rate us highly for reliability, transparency, and a seamless experience. Don’t just take our word for it—check the reviews.
Handle switching for you
Switching energy providers can feel overwhelming. That’s why Ostrom takes care of the entire process, ensuring your move is smooth and stress-free.
How We Go Above And Beyond
Smart device integrations
Connect your EV charger, heating system, solar systems, or other smart home devices to the Ostrom App for complete energy control. Optimize energy use and save money—all in one place.
Smart Meter installation support
Curious about smart meters? We’ll guide you through the process of getting one installed, so you can enjoy dynamic pricing and real-time energy insights.
100% green energy
With Ostrom, every kilowatt-hour is sourced from certified renewable sources. Reduce your carbon footprint while enjoying affordable, sustainable energy.
Ostrom SimplyFair
Ostrom SimplyDynamic
Typical Energy Providers
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Ostrom SimplyFair
Ostrom Simply Dynamic
Typical Energy Providers
How You Are Charged
Pay only for what you consume monthly
Forget estimated bills or overpayments. With Ostrom, you’re charged only for the exact electricity you use, calculated monthly. It’s transparency you can trust.
Not guaranteed
1 month price guarantee
With SimplyFair we keep it fair by closely monitoring market rates and passing on the best price to you. This means that prices may also sometimes rise, but these do not happen very often.
Unit price changes hourly
Save money by taking advantage of wholesale energy prices that change every hour. Use our SimplyDynamic tariff, powered by smart meters, to consume during cheaper times.
Not guaranteed
Monthly cancellable
Flexibility matters. At Ostrom, we believe in freedom, not contracts. Cancel or adjust your plan at any time, without penalties or complications.
How We Support You
Manage through our feature-rich app
From tracking your usage and payments in real-time to connecting smart devices and optimising your usage, the Ostrom App makes managing your electricity simple, digital, and paperless.
Not guaranteed
Friendly customer service in English
Whether you need guidance or answers, our knowledgeable support team is here for you—in English or German. Enjoy fast responses via live chat or email.
Not guaranteed
4.8 Trustpilot rating
Thousands of happy customers rate us highly for reliability, transparency, and a seamless experience. Don’t just take our word for it—check the reviews.
Not guaranteed
Handle switching for you
Switching energy providers can feel overwhelming. That’s why Ostrom takes care of the entire process, ensuring your move is smooth and stress-free.
Not guaranteed
How We Go Above & Beyond
Smart device integrations
Connect your EV charger, heating system, solar systems, or other smart home devices to the Ostrom App for complete energy control. Optimize energy use and save money—all in one place.
Not guaranteed
Smart Meter installation support
Curious about smart meters? We’ll guide you through the process of getting one installed, so you can enjoy dynamic pricing and real-time energy insights.
Not guaranteed
100% green energy
With Ostrom, every kilowatt-hour is sourced from certified renewable sources. Reduce your carbon footprint while enjoying affordable, sustainable energy.
Not guaranteed

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.

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