Ostrom is a smart, green energy provider!

✓ Save up to 35% or 500 € on your energy bill

✓ Everything in English and German

✓ 100% green energy

✓ Available anywhere in Germany

✓ Flexible cancellation

✓ Get up to 50 € for every friend who signs up too

Give me better energy!

Smart Heating

Take control with smart heating and temperature control solutions. Ensure optimal thermal comfort and energy efficiency at home.

Smart Home

Network your home with smart tech and control all devices according to your preference at the touch of a button.

Smart Lighting

Never forget if you turned off the light! Set automations to always have the perfect lighting mood at home.

EV Charging

With smart charging stations, you can make charging your electric car more efficient and convenient. Get to know the future of mobility.

Our hoodie

Become part of the green revolution!

This soft hoodie can be worn in any season and provides comfort all year round. Practical and beautiful with a drawstring and a kangaroo pocket. Show your support for renewable energy. Wear your commitment to a sustainable future with pride!

Our Partners

  • Modernize your heating system with our partner Vaillant and integrate it directly into our Ostrom App.

    Configure system 
  • With SOLY you can use the power of the sun for your home and combine it with the intelligent tariffs from Ostrom!

    Request information 
  • Do you live in Bavaria? Woltair helps you to switch to a heat pump and offers you a wide selection of top manufacturers.

    Request information 


What is Ostrom?

Ostrom was founded with the idea that managing your energy shouldn't be a headache. That's why we're always working to ensure that all our customers get the best possible tariff, with no strings attached.

In addition, we offer smart home devices and other products in our Ostrom Store to help you optimize your energy costs.

What is the Ostrom Wallet?

If you are an Ostrom customer, you can invite your friends and family to Ostrom by using your referral code. If they successfully sign up for an electricity tariff with Ostrom, you and the person you referred will receive store credit worth 50 €.

Find out more about our referral programe here: LINK

Which articles can be integrated into the Ostrom app?

Some of the articles in the Ostrom Store can be integrated into our Ostrom App. As an app user, you can use various automations such as creating your own personalised heating plan.

Products from tado°, Zaptec, Easee, Adax, Mill and also devices from Vaillant and Viessmann can be integrated.

Here you can find the complete list of integrable devices: LINK

Shipping conditions

Shipping in the Ostrom Store is free of charge. The dispatch time is approx. 2-4 days.

Return conditions

Don't like the product or did the product arrive damaged? You can return it to us free of charge, within 30 days. The purchase amount will be transferred back to you as soon as we have received and assessed the return.

Contact us at to receive your return label.