✓ One transparent plan, cancel anytime
✓ Everything in English and German
✓ 100% green energy
✓ Available anywhere in Germany
✓ Get 35€ for every friend who signs up too!
Ostrom uses tech to keep things lean, which means we can provide excellent customer service, transparency, flexibility, and the greenest electricity—without needing to markup our tariffs like other providers do.
We sell our energy at cost because we'd rather our customers consume less, instead of more.
We sign with 100% renewable energy sources, meaning your power comes from the best places.
Read your meter, manage your payments, or chat with us live—all in one app. No letters, no fax!
Moving apartments? Or leaving the country? With Ostrom you'll never be locked into a contract, or sent bills for energy you didn't use. Sign up with us now, and cancel whenever you want.Calculate Tariff
We only partner with reliable green electricity sources across Germany, so you'll always know exactly where your Ostrom power comes from. See for yourself!See Generators
Sign up easily on our website, then manage everything in our app. No need for "email templates" or translation apps!
Toggle your monthly payments, see your invoices, submit your meter reading, change your billing—all within the Ostrom app.
Our live customer support gives you answers in minutes, not hours or days!
We're a proudly German startup, but we know deutsche Sprache, schwere Sprache. This is why we also offer end-to-end English, from signup to contract.
Don’t just take our word for it, hear it from our loyal customers who’ve already made the jump to Ostrom.
We handle all the details when switching from your old provider. Shelve the “email cancellation template” and let Ostrom do it all!
We'll sort everything, which means you’ll never be stuck at home waiting for a technician to show up.
We manage the cancellation and handover process, so your lights (and everything else) will always stay on!
Breaking up is hard to do, so let Ostrom do it for you. We’ll let your old provider know that you’ve seen the light!
It only takes 5 minutes to switch and save with Ostrom!