We make green electricity simple and affordable for everyone. Get electricity at cost with no hidden markups. Track your usage, submit meter readings, charge your EV, chat with our English support, and much more — all in the Ostrom App!
You are only ever charged whatever you consume. All tariffs are risk-free, monthly cancellable.
No more asking a friend to translate to English. Our customer team is just one tap away!
We're probably the only provider in Germany to never send you mail. Everything's on our app!
With our SimplyFair variable rate, you're not bound to a confusing contract and won't be stuck with high prices. Smart meter users can also benefit from our dynamic pricing with the SimplyDynamic plan. You can sign up within minutes and cancel anytime.
✓ See consumption monthly
✓ Easily add meter readings
✓ No smart meter needed
✓ Flexible monthly payments
✓ Risk-free, monthly cancellable
✓ Works with the Ostrom Price Cap, never pay above 40 ct/kWh
✓ See consumption hourly
✓ No meter readings required
✓ Works with a smart meter
✓ Save with hourly electricity prices
✓ Risk-free, monthly cancellable
✓ Optimize your EV or heat pump to the cheapest hours of the day
We work with many different partner grids (see map) to make the smart meter rollout as efficient as possible. If you already have an Ostrom contract and live in the area of one of our partner grids, you can apply for a smart meter in the Ostrom App and switch to our SimplyDynamic tariff.
Is your grid operator not yet a partner of ours? Don't worry, we are already working on further collaborations. As soon as the smart meter order is available via a new grid, we will inform you in our app.
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!
With the Ostrom app you can do it all:
Our team responds quickly – much faster than elsewhere! Got questions? Just ask us in the live chat.
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.
"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)
Dynamic Electricity Tariffs Compared, 15.08.24
Browse our smart products for even better control over your energy consumption. From smart meter integration to electric vehicle charging, optimizing your consumption with Ostrom will benefit both the environment and your wallet!
Take control of your energy costs! Our Dynamic Pricing lets you compare your consumption to the hourly market prices so you can use more when it costs less, and vice versa.
Discover Ostrom's smart heating and cooling solutions. Take control with our user-friendly Ostrom App, saving energy and enjoying a comfortable home all year round.
Need your electric vehicle ready to go when you are? Just plug in and relax! With NeoGrid charging, you can not only save money but also earn money every time you charge!
Get everything you need for your smart home! From intelligent assistant speakers and electric vehicle chargers to smart thermostats and much more. Find it all on the Ostrom Store!
Ostrom has just launched the first Virtual Power Plant for electric vehicles! With groundbreaking technology that optimizes both the purchase and sale of electricity, our Virtual Power Plant adds flexibility to the grid—while generating extra income for you. Now, you can not only save money but also earn money every time you charge!
Learn More
Klasse ist, dass ich dafür (für die Teilnahme am virtuellen Kraftwerk mit NeoGrid) keine spezielle Hardware brauche, sondern die zeitliche Steuerung der Ladevorgänge über die standardmäßige Cloudverbindung meines Fahrzeugs erfolgt. Einfacher geht es wirklich nicht.
At Ostrom, there’s something for everyone: low energy prices with fixed or dynamic rates – combined with fair service and everything in one app. As a customer, it has really paid off for me so far!
The activation was quick, and I was promptly offered the "VPP" (Virtual Power Plant) concept as a test user – which immediately convinced me.
Thanks to the dynamic tariff and NeoGrid, I charge my EV exactly when electricity is cheap and green – and even get money back per kWh. That makes sustainable mobility a no-brainer.
Durch die Verbindung unserer Wärmepumpe, der PV-Anlage und des E-Autos mit der Ostrom-App profitieren wir optimal vom dynamischen Tarif. So sparen wir automatisch Stromkosten und nutzen die Energie bestmöglich.
Nach einigen vergeblichen Anläufen beim Netzanbieter ein Smartmeter zu bekommen, kam OSTROM ins Spiel. Das konkurrenzlos günstige Angebot habe ich sofort angenommen. Seitdem ist heizen mit Strom und unserer Wärmepumpe absolut alternativlos. Grüner Strom, teilweise gratis oder Geld dazu, faire, monatliche und transparente Abrechnung. Einfach der beste Stromanbieter, den wir je hatten. Was will man mehr?
Ostrom hilft mir mit dem dynamischen Tarif Geld zu sparen. In Verbindung mit meiner Wallbox lade ich mein EV zu günstigen Netzpreisen. Die App ist übersichtlich gestaltet und der Support antwortet sehr schnell!
I've been an Ostrom customer for a while now, and I’m genuinely impressed with their service. The onboarding process was simple and transparent, and I appreciated the flexibility they offer with their fully digital platform. Their customer support is responsive, the app is easy to use, and I always have a clear overview of my energy usage and costs. It’s refreshing to work with a provider that’s both modern and environmentally conscious. Highly recommended!
We integrate with dozens of partner brands and hundreds of devices from various electric vehicles, EV chargers, heat pumps and smart home appliances. Control them all through the Ostrom app, your home energy management platform.
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.
Ostrom is now a Certified B Corporation meaning we are part of a global community working to make high social and environmental impact. This strengthens our commitment to creating a better workplace, community and environment.
Lean back and enjoy: When switching to us, we handle all the details with your old provider.
We manage the cancellation and handover process so you can stay lit at all times!
We'll sort everything right away! Even after setup, we’re here to make sure everything works smoothly.
Let Ostrom do it for you: We'll let your old provider know you’ve seen the light.
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...
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.
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!)
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.
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.
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