SimplyDynamic Tariff
Save Up to 35% with Our Dynamic Pricing Tariff & Smart Meter
Start to control your electricity costs! We offer a dynamic tariff, so you can track your energy consumption on an hourly basis and get billed at the current hourly rate. And best of all, it's risk-free and monthly cancellable!
Dynamic & Transparent
The electricity price on the wholesale energy market varies hourly. We always pass on the wholesale electricity price plus taxes and levies directly to you.
Smart & Intuitive
In times of heavy winds, sunshine, or at night, electricity is cheaper. We at Ostrom enable you to take advantage of this and consume electricity at the cheapest time.
Easy & Digital
Your electricity consumption, bills, and energy-management tools are all in one place. Keep track in the Ostrom app and get the most out of your smart meter.
How To Get Our Dynamic Tariff
- 1. Sign Up To Ostrom
Sign up for our SimplyFair Tariff on our website.
- 2. Grid Confirmation
As soon as your contract is confirmed, the grid operator will inform us if you have a smart meter and therefore are eligible for our dynamic tariff. If you do not have a smart meter, you can order your smart meter after your contract confirmation here.
- 3. Order Consumption Data
If we do not automatically receive your consumption data daily we will request it from the grid operator. This can take up to 8 weeks.
- 4. Switch To Our Dynamic Tariff
Once we receive your consumption data, we will automatically switch you to our dynamic tariff. Let the savings begin!
- 5. Enjoy the Benefits
Reduce your energy costs by using electricity at the cheapest times. Monitor your consumption on an hourly basis and shift it to periods with more renewable energy. Automate devices and take advantage of flexible, variable electricity prices.
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.
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.
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 SimplyDynamic
Typical Energy Providers
How you are charged
Pay only for what you consume
monthly
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
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 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.
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
Stiftung Warentest says...
"Most tariffs are around 21 cents. Ostrom is the cheapest and stands at 19.3 cents."
The kilowatt-hour, including VAT and all additional costs, cost only 10.5 cents for our sample household in Berlin with Ostrom. The fixed costs at Ostrom amount to 16.2 cents per kilowatt-hour without VAT. If you subtract the negative electricity price of 7.4 cents from this and factor in VAT again, you arrive at this low price." (translated from German original)
Dynamische Stromtarife im Vergleich, 15.08.24
Energy At Your Fingertips
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
Our team responds quickly – much faster than elsewhere! Got questions? Just ask us in the live chat.
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.
Test the app for free on Demo Mode — download today!
Smart Meter Requirements
We support different kinds of smart meters such as official smart meters you received through your local grid as well as private suppliers like with our partner Lackmann.
What is a smart meter and do I have one?
If you are not sure whether you have a smart meter or not, we can also assist you in our live support chat to check your eligibility.
Learn MoreWhat 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.
The 5 Most Frequently Asked Questions
- #1 Why should I switch to Ostrom?
Ostrom is the only energy provider that has the same incentives as you — to use less electricity! With our flat 6 € basic fee, we earn the same from a small flat as from a large house. Therefore, unlike every other energy provider, we genuinely want you to use less electricity.
Oh yeah, and we have our top-rated app... and our incredible customer support... and our smart integrations... and our certified green energy... - #2 I still have my contract period with my old provider. Do I have to wait? (Not at all!)
No, there’s no need to wait! Even if your current contract has up to 12 months remaining, you can sign up early with Ostrom today. Just sign up now, and we’ll take care of the rest — once your existing contract ends according to pre-agreed terms, we will seamlessly switch you to Ostrom.
- #3 What is the difference between the SimplyFair and SimplyDynamic tariffs?
SimplyFair: Our original transparent tariff for all! Easily add meter readings to track your consumption on our app. Energy prices track the market prices on a monthly basis. In fact, in the last 2 years we’ve already decreased prices seven times!
SimplyDynamic: Our smart-meter compatible tariff! For those customers who already have a smart meter, automatically see your energy consumption on an hourly basis. This means you can take advantage of low prices when the sun shines or the wind blows!
Both have all the great features for all Ostrom customers: risk-free monthly cancellable contract, all the features of the Ostrom App (smart home integrations, referrals, perks, CO2 tracking, Ostrom Store, live customer chat & more!) - #4 I'm worried about price changes. What do they look like at Ostrom?
While energy prices change often, our SimplyFair tariff removes that complexity for our customers. It's the perfect balance between dynamic prices that change hourly and 24-month contracts that keep you locked in to a high price (think households in 2025 still paying 2022 prices).
We truly stick to our electricity-at-cost model. This means that unlike our competitors whose prices mostly only go up, we even pass on decreases as well. Since our monthly fixed fee means we do not profit from price increases, increases only happen when market prices change significantly, such as during the energy crisis a few years ago. However since then, we have decreased prices 7 times and only increased once, still achieving a significantly cheaper price over time. - #5 Does Ostrom offer risk-free, flexible, monthly cancellable contracts?
Yes! Both our SimplyFair and SimplyDynamic tariffs do not have the typical 12- or 24-month minimum contract periods like every other provider. We want you to stay because you want to, not because you have to.
Green Energy Made Easy
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