Save on your energy bill and win an awesome Ostrom hoodie!  


Karl Villanueva

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Save on your energy bill AND win an awesome Ostrom hoodie!

Head to the Ostrom App to see our Referral Leaderboard! The “Wallet” section shows Ostrom App users their code to share and refer friends to Ostrom. You’ll also see where you rank among other customers for the number of people you have referred.

We appreciate everyone who wants to spread the news about Ostrom and bring new people to our smart, green platform. As a thank you, we run our monthly hoodie giveaway — on top of the usual 35 € invoice credit or 50 € Ostrom Store voucher!

Each month, we randomly select three winners from all users who have referred a new person to Ostrom and gift them an awesome new Ostrom hoodie! Show off your Ostrom support in our fresh, plush hoodie.

How Can You Win an Ostrom Hoodie?

Share your unique referral code with your friends, and we’ll track your progress on the Referrals Leaderboard. At the end of each month, anyone that has referred a friend will be automatically entered into the hoodie lottery. Only three winners will be selected each month.

We’ll get in contact with each winner after the end of each month to let you know how you can receive your hoodie. This will usually include a code for you to order directly from the Ostrom Store.

The Ostrom Referral Program

Our referral program is a win-win-win: for you, for Ostrom, and for our digital, green mission! Each time someone signs up using your unique referral code, you’ll both get 35 € off your bill or 50 € Ostrom Store credit. Plus, the world gets one more person switching to 100% green energy🥳 We’ve already had loads of customers taking part and it’s awesome to see happy customers using their rewards! Let’s go, Ostrom!

You'll find your referral code in the Ostrom App, in the “Wallet” section. Haven’t downloaded the Ostrom App yet? Get it here!